cdi.h 52.4 KB
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/*
  CDI C header file

  This is the only file that must be included to use the CDI library from C.
*/

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#ifndef  CDI_H_
#define  CDI_H_
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#include <stdio.h>
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#include <stdint.h>    // int64_t
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#include <sys/types.h>
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#ifdef __cplusplus
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extern "C" {
#endif
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#define  CDI_MAX_NAME             256   // Max length of a name
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#define  CDI_UNDEFID               -1
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#define  CDI_GLOBAL                -1   // Global var ID for vlist and grid
#define  CDI_XAXIS                  1   // X-axis ID for grid
#define  CDI_YAXIS                  2   // Y-axis ID for grid
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// Byte order
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#define  CDI_BIGENDIAN              0   // Byte order BIGENDIAN
#define  CDI_LITTLEENDIAN           1   // Byte order LITTLEENDIAN
#define  CDI_PDPENDIAN              2
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#define  CDI_REAL                   1   // Real numbers
#define  CDI_COMP                   2   // Complex numbers
#define  CDI_BOTH                   3   // Both numbers
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// Error identifier
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#define	 CDI_NOERR        	    0   // No Error
#define  CDI_EEOF                  -1   // The end of file was encountered
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#define  CDI_ETMOF                 -9   // Too many open files
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#define  CDI_ESYSTEM              -10   // Operating system error
#define  CDI_EINVAL               -20   // Invalid argument
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#define  CDI_EISDIR               -21   // Is a directory
#define  CDI_EISEMPTY             -22   // Is empty
#define  CDI_EUFTYPE              -23   // Unsupported file type
#define  CDI_ELIBNAVAIL           -24   // xxx library not available
#define  CDI_EUFSTRUCT            -25   // Unsupported file structure
#define  CDI_EUNC4                -26   // Unsupported NetCDF4 structure
#define  CDI_EDIMSIZE             -27   // Invalid dimension size
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#define  CDI_ELIMIT               -99   // Internal limits exceeded
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// File types
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#define  CDI_FILETYPE_GRB           1   // File type GRIB
#define  CDI_FILETYPE_GRB2          2   // File type GRIB version 2
#define  CDI_FILETYPE_NC            3   // File type NetCDF
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#define  CDI_FILETYPE_NC2           4   // File type NetCDF version 2 (64-bit offset)
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#define  CDI_FILETYPE_NC4           5   // File type NetCDF version 4
#define  CDI_FILETYPE_NC4C          6   // File type NetCDF version 4 (classic)
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#define  CDI_FILETYPE_NC5           7   // File type NetCDF version 5 (64-bit data)
#define  CDI_FILETYPE_SRV           8   // File type SERVICE
#define  CDI_FILETYPE_EXT           9   // File type EXTRA
#define  CDI_FILETYPE_IEG          10   // File type IEG
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// Compress types
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#define  CDI_COMPRESS_NONE          0
#define  CDI_COMPRESS_SZIP          1
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#define  CDI_COMPRESS_AEC           2
#define  CDI_COMPRESS_ZIP           3
#define  CDI_COMPRESS_JPEG          4
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// external data types
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#define  CDI_DATATYPE_PACK          0
#define  CDI_DATATYPE_PACK1         1
#define  CDI_DATATYPE_PACK2         2
#define  CDI_DATATYPE_PACK3         3
#define  CDI_DATATYPE_PACK4         4
#define  CDI_DATATYPE_PACK5         5
#define  CDI_DATATYPE_PACK6         6
#define  CDI_DATATYPE_PACK7         7
#define  CDI_DATATYPE_PACK8         8
#define  CDI_DATATYPE_PACK9         9
#define  CDI_DATATYPE_PACK10       10
#define  CDI_DATATYPE_PACK11       11
#define  CDI_DATATYPE_PACK12       12
#define  CDI_DATATYPE_PACK13       13
#define  CDI_DATATYPE_PACK14       14
#define  CDI_DATATYPE_PACK15       15
#define  CDI_DATATYPE_PACK16       16
#define  CDI_DATATYPE_PACK17       17
#define  CDI_DATATYPE_PACK18       18
#define  CDI_DATATYPE_PACK19       19
#define  CDI_DATATYPE_PACK20       20
#define  CDI_DATATYPE_PACK21       21
#define  CDI_DATATYPE_PACK22       22
#define  CDI_DATATYPE_PACK23       23
#define  CDI_DATATYPE_PACK24       24
#define  CDI_DATATYPE_PACK25       25
#define  CDI_DATATYPE_PACK26       26
#define  CDI_DATATYPE_PACK27       27
#define  CDI_DATATYPE_PACK28       28
#define  CDI_DATATYPE_PACK29       29
#define  CDI_DATATYPE_PACK30       30
#define  CDI_DATATYPE_PACK31       31
#define  CDI_DATATYPE_PACK32       32
#define  CDI_DATATYPE_CPX32        64
#define  CDI_DATATYPE_CPX64       128
#define  CDI_DATATYPE_FLT32       132
#define  CDI_DATATYPE_FLT64       164
#define  CDI_DATATYPE_INT8        208
#define  CDI_DATATYPE_INT16       216
#define  CDI_DATATYPE_INT32       232
#define  CDI_DATATYPE_UINT8       308
#define  CDI_DATATYPE_UINT16      316
#define  CDI_DATATYPE_UINT32      332

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// internal data types
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#define  CDI_DATATYPE_INT         251
#define  CDI_DATATYPE_FLT         252
#define  CDI_DATATYPE_TXT         253
#define  CDI_DATATYPE_CPX         254
#define  CDI_DATATYPE_UCHAR       255
#define  CDI_DATATYPE_LONG        256
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#define  CDI_DATATYPE_UINT        257
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// Chunks
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#define  CDI_CHUNK_AUTO             1  // use default chunk size
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#define  CDI_CHUNK_GRID             2
#define  CDI_CHUNK_LINES            3
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// GRID types
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#define  GRID_GENERIC               1  // Generic grid
#define  GRID_GAUSSIAN              2  // Regular Gaussian lon/lat grid
#define  GRID_GAUSSIAN_REDUCED      3  // Reduced Gaussian lon/lat grid
#define  GRID_LONLAT                4  // Regular longitude/latitude grid
#define  GRID_SPECTRAL              5  // Spherical harmonic coefficients
#define  GRID_FOURIER               6  // Fourier coefficients
#define  GRID_GME                   7  // Icosahedral-hexagonal GME grid
#define  GRID_TRAJECTORY            8  // Trajectory
#define  GRID_UNSTRUCTURED          9  // General unstructured grid
#define  GRID_CURVILINEAR          10  // Curvilinear grid
#define  GRID_PROJECTION           12  // Projected coordinates
#define  GRID_CHARXY               13  // One horizontal character dimension

#define  CDI_PROJ_RLL              21  // Rotated Latitude Longitude
#define  CDI_PROJ_LCC              22  // Lambert Conformal Conic
#define  CDI_PROJ_LAEA             23  // Lambert Azimuthal Equal Area
#define  CDI_PROJ_SINU             24  // Sinusoidal
#define  CDI_PROJ_STERE            25  // Polar stereographic
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// ZAXIS types
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#define  ZAXIS_SURFACE              0  // Surface level
#define  ZAXIS_GENERIC              1  // Generic level
#define  ZAXIS_HYBRID               2  // Hybrid level
#define  ZAXIS_HYBRID_HALF          3  // Hybrid half level
#define  ZAXIS_PRESSURE             4  // Isobaric pressure level in Pascal
#define  ZAXIS_HEIGHT               5  // Height above ground
#define  ZAXIS_DEPTH_BELOW_SEA      6  // Depth below sea level in meters
#define  ZAXIS_DEPTH_BELOW_LAND     7  // Depth below land surface in centimeters
#define  ZAXIS_ISENTROPIC           8  // Isentropic
#define  ZAXIS_TRAJECTORY           9  // Trajectory
#define  ZAXIS_ALTITUDE            10  // Altitude above mean sea level in meters
#define  ZAXIS_SIGMA               11  // Sigma level
#define  ZAXIS_MEANSEA             12  // Mean sea level
#define  ZAXIS_TOA                 13  // Norminal top of atmosphere
#define  ZAXIS_SEA_BOTTOM          14  // Sea bottom
#define  ZAXIS_ATMOSPHERE          15  // Entire atmosphere
#define  ZAXIS_CLOUD_BASE          16  // Cloud base level
#define  ZAXIS_CLOUD_TOP           17  // Level of cloud tops
#define  ZAXIS_ISOTHERM_ZERO       18  // Level of 0o C isotherm
#define  ZAXIS_SNOW                19  // Snow level
#define  ZAXIS_LAKE_BOTTOM         20  // Lake or River Bottom
#define  ZAXIS_SEDIMENT_BOTTOM     21  // Bottom Of Sediment Layer
#define  ZAXIS_SEDIMENT_BOTTOM_TA  22  // Bottom Of Thermally Active Sediment Layer
#define  ZAXIS_SEDIMENT_BOTTOM_TW  23  // Bottom Of Sediment Layer Penetrated By Thermal Wave
#define  ZAXIS_MIX_LAYER           24  // Mixing Layer
#define  ZAXIS_REFERENCE           25  // zaxis reference number
#define  ZAXIS_CHAR                26  // Area types
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// SUBTYPE types
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enum {
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  SUBTYPE_TILES                   = 0  // Tiles variable
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};
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#define MAX_KV_PAIRS_MATCH 10

/* Data structure defining a key-value search, possibly with multiple
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   key-value pairs in combination.
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   Currently, only multiple pairs combined by AND are supported.
*/
typedef struct  {
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  int nAND;                                   // no. of key-value pairs that have to match
  int key_value_pairs[2][MAX_KV_PAIRS_MATCH]; // key-value pairs
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} subtype_query_t;



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// TIME types

#define  TIME_CONSTANT            0  // Time constant
#define  TIME_VARYING             1  // Time varying
#define  TIME_VARIABLE            1  // obsolate, use TIME_VARYING

// TSTEP types

#define  TSTEP_INSTANT            1  // Instant
#define  TSTEP_AVG                2  // Average
#define  TSTEP_ACCUM              3  // Accumulation
#define  TSTEP_MAX                4  // Maximum
#define  TSTEP_MIN                5  // Minimum
#define  TSTEP_DIFF               6  // Difference
#define  TSTEP_RMS                7  // Root mean square
#define  TSTEP_SD                 8  // Standard deviation
#define  TSTEP_COV                9  // Covariance
#define  TSTEP_RATIO             10  // Ratio
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#define  TSTEP_SUM               11  // Summation
#define  TSTEP_RANGE             12
#define  TSTEP_INSTANT2          13
#define  TSTEP_INSTANT3          14
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// TAXIS types
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#define  TAXIS_ABSOLUTE           1
#define  TAXIS_RELATIVE           2
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#define  TAXIS_FORECAST           3
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// TUNIT types
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#define  TUNIT_SECOND             1
#define  TUNIT_MINUTE             2
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#define  TUNIT_QUARTER            3
#define  TUNIT_30MINUTES          4
#define  TUNIT_HOUR               5
#define  TUNIT_3HOURS             6
#define  TUNIT_6HOURS             7
#define  TUNIT_12HOURS            8
#define  TUNIT_DAY                9
#define  TUNIT_MONTH             10
#define  TUNIT_YEAR              11
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// CALENDAR types
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#define  CALENDAR_STANDARD        0  // don't change this value (used also in cgribexlib)!
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#define  CALENDAR_GREGORIAN       1
#define  CALENDAR_PROLEPTIC       2
#define  CALENDAR_360DAYS         3
#define  CALENDAR_365DAYS         4
#define  CALENDAR_366DAYS         5
#define  CALENDAR_NONE            6
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// number of unsigned char needed to store UUID
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#define  CDI_UUID_SIZE           16
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// Structs that are used to return data to the user
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typedef struct CdiParam { int discipline; int category; int number; } CdiParam;
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// Opaque types
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typedef struct CdiIterator CdiIterator;
typedef struct CdiGribIterator CdiGribIterator;

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// CDI control routines
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void    cdiReset(void);
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const char *cdiStringError(int cdiErrno);
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void    cdiDebug(int debug);

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const char *cdiLibraryVersion(void);
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void    cdiPrintVersion(void);

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int     cdiHaveFiletype(int filetype);

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void    cdiDefMissval(double missval);
double  cdiInqMissval(void);
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double  cdiInqGridMissval(void);
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void    cdiDefGlobal(const char *string, int val);
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int     namespaceNew(void);
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void    namespaceSetActive(int namespaceID);
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int     namespaceGetActive(void);
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void    namespaceDelete(int namespaceID);


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// CDI converter routines
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// parameter
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void    cdiParamToString(int param, char *paramstr, int maxlen);
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void    cdiDecodeParam(int param, int *pnum, int *pcat, int *pdis);
int     cdiEncodeParam(int pnum, int pcat, int pdis);
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// date format:  YYYYMMDD
// time format:    hhmmss
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void    cdiDecodeDate(int64_t date, int *year, int *month, int *day);
int64_t cdiEncodeDate(int year, int month, int day);
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void    cdiDecodeTime(int time, int *hour, int *minute, int *second);
int     cdiEncodeTime(int hour, int minute, int second);


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// STREAM control routines
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int     cdiGetFiletype(const char *path, int *byteorder);

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//      streamOpenRead: Open a dataset for reading
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int     streamOpenRead(const char *path);
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//      streamOpenWrite: Create a new dataset
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int     streamOpenWrite(const char *path, int filetype);
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int     streamOpenAppend(const char *path);
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//      streamClose: Close an open dataset
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void    streamClose(int streamID);

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//      streamSync: Synchronize an Open Dataset to Disk
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void    streamSync(int streamID);

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void    streamDefNumWorker(int streamID, int numWorker);

//      streamDefVlist: Define the Vlist for a stream
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void    streamDefVlist(int streamID, int vlistID);

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//      streamInqVlist: Get the Vlist of a stream
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int     streamInqVlist(int streamID);

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//      streamInqFiletype: Get the filetype
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int     streamInqFiletype(int streamID);
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//      streamDefByteorder: Define the byteorder
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void    streamDefByteorder(int streamID, int byteorder);
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//      streamInqByteorder: Get the byteorder
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int     streamInqByteorder(int streamID);

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//      streamDefCompType: Define compression type
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void    streamDefCompType(int streamID, int comptype);
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//      streamInqCompType: Get compression type
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int     streamInqCompType(int streamID);
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//      streamDefCompLevel: Define compression level
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void    streamDefCompLevel(int streamID, int complevel);

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//      streamInqCompLevel: Get compression level
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int     streamInqCompLevel(int streamID);
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//      streamDefTimestep: Define time step
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int     streamDefTimestep(int streamID, int tsID);
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//      streamInqTimestep: Get time step
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int     streamInqTimestep(int streamID, int tsID);

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//      PIO: query currently set timestep id
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int     streamInqCurTimestepID(int streamID);

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const char *streamFilename(int streamID);
const char *streamFilesuffix(int filetype);
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size_t  streamNvals(int streamID);
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int     streamInqNvars(int streamID);
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// STREAM var I/O routines (random access)
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//      streamWriteVar: Write a variable
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void    streamWriteVar(int streamID, int varID, const double data[], size_t nmiss);
void    streamWriteVarF(int streamID, int varID, const float data[], size_t nmiss);
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//      streamReadVar: Read a variable
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void    streamReadVar(int streamID, int varID, double data[], size_t *nmiss);
void    streamReadVarF(int streamID, int varID, float data[], size_t *nmiss);
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void    streamReadVarPart(int streamID, int varID, int varType, int start, size_t size, void *data, size_t *nmiss, int memtype);
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//      streamWriteVarSlice: Write a horizontal slice of a variable
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void    streamWriteVarSlice(int streamID, int varID, int levelID, const double data[], size_t nmiss);
void    streamWriteVarSliceF(int streamID, int varID, int levelID, const float data[], size_t nmiss);
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void    streamReadVarSlicePart(int streamID, int varID, int levelID, int varType, int start, size_t size, void *data, size_t *nmiss, int memtype);
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//      streamReadVarSlice: Read a horizontal slice of a variable
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void    streamReadVarSlice(int streamID, int varID, int levelID, double data[], size_t *nmiss);
void    streamReadVarSliceF(int streamID, int varID, int levelID, float data[], size_t *nmiss);
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void    streamWriteVarChunk(int streamID, int varID, const int rect[3][2], const double data[], size_t nmiss);
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// STREAM record I/O routines (sequential access)
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void    streamDefRecord(int streamID, int  varID, int  levelID);
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void    streamInqRecord(int streamID, int *varID, int *levelID);
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void    streamWriteRecord(int streamID, const double data[], size_t nmiss);
void    streamWriteRecordF(int streamID, const float data[], size_t nmiss);
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void    streamReadRecord(int streamID, double data[], size_t *nmiss);
void    streamReadRecordF(int streamID, float data[], size_t *nmiss);
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void    streamCopyRecord(int streamIDdest, int streamIDsrc);

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void    streamInqGRIBinfo(int streamID, int *intnum, float *fltnum, off_t *bignum);
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// File driven I/O (may yield better performance than using the streamXXX functions)
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// Creation & Destruction
CdiIterator *cdiIterator_new(const char *path);  // Requires a subsequent call to cdiIteratorNextField() to point the iterator at the first field.
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CdiIterator *cdiIterator_clone(CdiIterator *me);
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char *cdiIterator_serialize(CdiIterator *me);  // Returns a malloc'ed string.
CdiIterator *cdiIterator_deserialize(const char *description);  // description is a string that was returned by cdiIteratorSerialize(). Returns a copy of the original iterator.
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void cdiIterator_print(CdiIterator *me, FILE *stream);
void cdiIterator_delete(CdiIterator *me);
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// Advancing an iterator
int cdiIterator_nextField(CdiIterator *me);      // Points the iterator at the next field, returns CDI_EEOF if there are no more fields in the file.

// Introspecting metadata
// All outXXX arguments to these functions may be NULL.
char *cdiIterator_inqStartTime(CdiIterator *me);    // Returns the (start) time as an ISO-8601 coded string. The caller is responsible to Free() the returned string.
char *cdiIterator_inqEndTime(CdiIterator *me);      // Returns the end time of an integration period as an ISO-8601 coded string, or NULL if there is no end time. The caller is responsible to Free() the returned string.
char *cdiIterator_inqRTime(CdiIterator *me);        // Returns the reference date as an ISO-8601 coded string. The caller is responsible to Free() the returned string.
char *cdiIterator_inqVTime(CdiIterator *me);        // Returns the validity date as an ISO-8601 coded string. The caller is responsible to Free() the returned string.
int cdiIterator_inqLevelType(CdiIterator *me, int levelSelector, char **outName_optional, char **outLongName_optional, char **outStdName_optional, char **outUnit_optional);      // callers are responsible to Free() strings that they request
int cdiIterator_inqLevel(CdiIterator *me, int levelSelector, double *outValue1_optional, double *outValue2_optional);       // outValue2 is only written to if the level is a hybrid level
int cdiIterator_inqLevelUuid(CdiIterator *me, int *outVgridNumber_optional, int *outLevelCount_optional, unsigned char outUuid_optional[CDI_UUID_SIZE]);   // outUuid must point to a buffer of 16 bytes, returns an error code if no generalized zaxis is used.
int cdiIterator_inqTile(CdiIterator *me, int *outTileIndex, int *outTileAttribute); // Returns CDI_EINVAL if there is no tile information connected to the current field, *outTileIndex and *outTileAttribute will be set to -1 in this case.
int cdiIterator_inqTileCount(CdiIterator *me, int *outTileCount, int *outTileAttributeCount); // outTileAttributeCount is the count for the tile associated with the current field, a total attribute count cannot be inquired. Returns CDI_EINVAL if there is no tile information connected to the current field, *outTileCount and *outTileAttributeCount will be set to 0 in this case.
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CdiParam cdiIterator_inqParam(CdiIterator *me);
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void cdiIterator_inqParamParts(CdiIterator *me, int *outDiscipline, int *outCategory, int *outNumber);	// Some FORTRAN compilers produce wrong code for the cdiIterator_inqParam()-wrapper, rendering it unusable from FORTRAN. This function is the workaround.
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int cdiIterator_inqDatatype(CdiIterator *me);
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int cdiIterator_inqFiletype(CdiIterator *me);
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int cdiIterator_inqTsteptype(CdiIterator *me);
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char *cdiIterator_inqVariableName(CdiIterator *me);     // The caller is responsible to Free() the returned buffer.
int cdiIterator_inqGridId(CdiIterator *me);             // The returned id is only valid until the next call to cdiIteratorNextField().
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// Reading data
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void cdiIterator_readField(CdiIterator *me, double data[], size_t *nmiss_optional);
void cdiIterator_readFieldF(CdiIterator *me, float data[], size_t *nmiss_optional);
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// TODO[NH]: Add functions to read partial fields.
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// Direct access to grib fields
CdiGribIterator *cdiGribIterator_clone(CdiIterator *me);  // Returns NULL if the associated file is not a GRIB file.
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void cdiGribIterator_delete(CdiGribIterator *me);
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// Callthroughs to GRIB-API
int cdiGribIterator_getLong(CdiGribIterator *me, const char *key, long *value);         // Same semantics as grib_get_long().
int cdiGribIterator_getDouble(CdiGribIterator *me, const char *key, double *value);     // Same semantics as grib_get_double().
int cdiGribIterator_getLength(CdiGribIterator *me, const char *key, size_t *value);     // Same semantics as grib_get_length().
int cdiGribIterator_getString(CdiGribIterator *me, const char *key, char *value, size_t *length);       // Same semantics as grib_get_string().
int cdiGribIterator_getSize(CdiGribIterator *me, const char *key, size_t *value);       // Same semantics as grib_get_size().
int cdiGribIterator_getLongArray(CdiGribIterator *me, const char *key, long *value, size_t *array_size);       // Same semantics as grib_get_long_array().
int cdiGribIterator_getDoubleArray(CdiGribIterator *me, const char *key, double *value, size_t *array_size);   // Same semantics as grib_get_double_array().
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// Convenience functions for accessing GRIB-API keys
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int cdiGribIterator_inqEdition(CdiGribIterator *me);
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long cdiGribIterator_inqLongValue(CdiGribIterator *me, const char *key);       // Aborts on failure to fetch the given key.
long cdiGribIterator_inqLongDefaultValue(CdiGribIterator *me, const char *key, long defaultValue); // Returns the default value if the given key is not present.
double cdiGribIterator_inqDoubleValue(CdiGribIterator *me, const char *key);   // Aborts on failure to fetch the given key.
double cdiGribIterator_inqDoubleDefaultValue(CdiGribIterator *me, const char *key, double defaultValue); // Returns the default value if the given key is not present.
char *cdiGribIterator_inqStringValue(CdiGribIterator *me, const char *key);    // Returns a malloc'ed string.
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// VLIST routines
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//      vlistCreate: Create a variable list
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int     vlistCreate(void);
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//      vlistDestroy: Destroy a variable list
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void    vlistDestroy(int vlistID);
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//      vlistDuplicate: Duplicate a variable list
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int     vlistDuplicate(int vlistID);

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//      vlistCopy: Copy a variable list
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void    vlistCopy(int vlistID2, int vlistID1);

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//      vlistCopyFlag: Copy some entries of a variable list
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void    vlistCopyFlag(int vlistID2, int vlistID1);

void    vlistClearFlag(int vlistID);

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//      vlistCat: Concatenate two variable lists
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void    vlistCat(int vlistID2, int vlistID1);

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//      vlistMerge: Merge two variable lists
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void    vlistMerge(int vlistID2, int vlistID1);

void    vlistPrint(int vlistID);

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//      vlistNumber: Number type in a variable list
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int     vlistNumber(int vlistID);

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//      vlistNvars: Number of variables in a variable list
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int     vlistNvars(int vlistID);

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//      vlistNgrids: Number of grids in a variable list
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int     vlistNgrids(int vlistID);

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//      vlistNzaxis: Number of zaxis in a variable list
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int     vlistNzaxis(int vlistID);

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//      vlistNsubtypes: Number of subtypes in a variable list
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int     vlistNsubtypes(int vlistID);

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void    vlistDefNtsteps(int vlistID, int nts);
int     vlistNtsteps(int vlistID);
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size_t  vlistGridsizeMax(int vlistID);
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int     vlistGrid(int vlistID, int index);
int     vlistGridIndex(int vlistID, int gridID);
void    vlistChangeGridIndex(int vlistID, int index, int gridID);
void    vlistChangeGrid(int vlistID, int gridID1, int gridID2);
int     vlistZaxis(int vlistID, int index);
int     vlistZaxisIndex(int vlistID, int zaxisID);
void    vlistChangeZaxisIndex(int vlistID, int index, int zaxisID);
void    vlistChangeZaxis(int vlistID, int zaxisID1, int zaxisID2);
int     vlistNrecs(int vlistID);
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int     vlistSubtype(int vlistID, int index);
int     vlistSubtypeIndex(int vlistID, int subtypeID);
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//      vlistDefTaxis: Define the time axis of a variable list
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void    vlistDefTaxis(int vlistID, int taxisID);
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//      vlistInqTaxis: Get the time axis of a variable list
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int     vlistInqTaxis(int vlistID);
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void    vlistDefTable(int vlistID, int tableID);
int     vlistInqTable(int vlistID);
void    vlistDefInstitut(int vlistID, int instID);
int     vlistInqInstitut(int vlistID);
void    vlistDefModel(int vlistID, int modelID);
int     vlistInqModel(int vlistID);


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// VLIST VAR routines
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//      vlistDefVarTiles: Create a new tile-based variable
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int     vlistDefVarTiles(int vlistID, int gridID, int zaxisID, int timetype, int tilesetID);
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//      vlistDefVar: Create a new variable
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int     vlistDefVar(int vlistID, int gridID, int zaxisID, int timetype);
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void    vlistChangeVarGrid(int vlistID, int varID, int gridID);
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void    vlistChangeVarZaxis(int vlistID, int varID, int zaxisID);

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void    vlistInqVar(int vlistID, int varID, int *gridID, int *zaxisID, int *timetype);
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int     vlistInqVarGrid(int vlistID, int varID);
int     vlistInqVarZaxis(int vlistID, int varID);
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//      used in MPIOM
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int     vlistInqVarID(int vlistID, int code);

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void    vlistDefVarTimetype(int vlistID, int varID, int timetype);
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int     vlistInqVarTimetype(int vlistID, int varID);

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void    vlistDefVarTsteptype(int vlistID, int varID, int tsteptype);
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//      vlistInqVarTsteptype: Get the timestep type of a Variable
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int     vlistInqVarTsteptype(int vlistID, int varID);
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void    vlistDefVarCompType(int vlistID, int varID, int comptype);
int     vlistInqVarCompType(int vlistID, int varID);
void    vlistDefVarCompLevel(int vlistID, int varID, int complevel);
int     vlistInqVarCompLevel(int vlistID, int varID);
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//      vlistDefVarParam: Define the parameter number of a Variable
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void    vlistDefVarParam(int vlistID, int varID, int param);

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//      vlistInqVarParam: Get the parameter number of a Variable
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int     vlistInqVarParam(int vlistID, int varID);

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//      vlistDefVarCode: Define the code number of a Variable
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void    vlistDefVarCode(int vlistID, int varID, int code);

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//      vlistInqVarCode: Get the code number of a Variable
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int     vlistInqVarCode(int vlistID, int varID);

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//      vlistDefVarDatatype: Define the data type of a Variable
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void    vlistDefVarDatatype(int vlistID, int varID, int datatype);

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//      vlistInqVarDatatype: Get the data type of a Variable
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int     vlistInqVarDatatype(int vlistID, int varID);

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void    vlistDefVarChunkType(int vlistID, int varID, int chunktype);
int     vlistInqVarChunkType(int vlistID, int varID);

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void    vlistDefVarXYZ(int vlistID, int varID, int xyz);
int     vlistInqVarXYZ(int vlistID, int varID);

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int     vlistInqVarNumber(int vlistID, int varID);

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void    vlistDefVarInstitut(int vlistID, int varID, int instID);
int     vlistInqVarInstitut(int vlistID, int varID);
void    vlistDefVarModel(int vlistID, int varID, int modelID);
int     vlistInqVarModel(int vlistID, int varID);
void    vlistDefVarTable(int vlistID, int varID, int tableID);
int     vlistInqVarTable(int vlistID, int varID);

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//      vlistDefVarName: Define the name of a Variable
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void    vlistDefVarName(int vlistID, int varID, const char *name);

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//      vlistInqVarName: Get the name of a Variable
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void    vlistInqVarName(int vlistID, int varID, char *name);

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//      vlistCopyVarName: Safe and convenient version of vlistInqVarName
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char   *vlistCopyVarName(int vlistId, int varId);
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//      vlistDefVarStdname: Define the standard name of a Variable
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void    vlistDefVarStdname(int vlistID, int varID, const char *stdname);

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//      vlistInqVarStdname: Get the standard name of a Variable
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void    vlistInqVarStdname(int vlistID, int varID, char *stdname);

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//      vlistDefVarLongname: Define the long name of a Variable
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void    vlistDefVarLongname(int vlistID, int varID, const char *longname);

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//      vlistInqVarLongname: Get the long name of a Variable
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void    vlistInqVarLongname(int vlistID, int varID, char *longname);
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//      vlistDefVarUnits: Define the units of a Variable
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void    vlistDefVarUnits(int vlistID, int varID, const char *units);

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//      vlistInqVarUnits: Get the units of a Variable
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void    vlistInqVarUnits(int vlistID, int varID, char *units);

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//      vlistDefVarMissval: Define the missing value of a Variable
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void    vlistDefVarMissval(int vlistID, int varID, double missval);

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//      vlistInqVarMissval: Get the missing value of a Variable
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double  vlistInqVarMissval(int vlistID, int varID);

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//      vlistDefVarExtra: Define extra information of a Variable
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void    vlistDefVarExtra(int vlistID, int varID, const char *extra);

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//      vlistInqVarExtra: Get extra information of a Variable
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void    vlistInqVarExtra(int vlistID, int varID, char *extra);

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void    vlistDefVarScalefactor(int vlistID, int varID, double scalefactor);
double  vlistInqVarScalefactor(int vlistID, int varID);
void    vlistDefVarAddoffset(int vlistID, int varID, double addoffset);
double  vlistInqVarAddoffset(int vlistID, int varID);
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void    vlistDefVarTimave(int vlistID, int varID, int timave);
int     vlistInqVarTimave(int vlistID, int varID);
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size_t  vlistInqVarSize(int vlistID, int varID);
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void    vlistDefIndex(int vlistID, int varID, int levID, int index);
int     vlistInqIndex(int vlistID, int varID, int levID);
void    vlistDefFlag(int vlistID, int varID, int levID, int flag);
int     vlistInqFlag(int vlistID, int varID, int levID);
int     vlistFindVar(int vlistID, int fvarID);
int     vlistFindLevel(int vlistID, int fvarID, int flevelID);
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int     vlistMergedVar(int vlistID, int varID);
int     vlistMergedLevel(int vlistID, int varID, int levelID);
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// cdiClearAdditionalKeys: Clear the list of additional GRIB keys
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void    cdiClearAdditionalKeys(void);
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// cdiDefAdditionalKey: Register an additional GRIB key which is read when file is opened
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void    cdiDefAdditionalKey(const char *string);
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// vlistDefVarIntKey: Set an arbitrary keyword/integer value pair for GRIB API
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void    vlistDefVarIntKey(int vlistID, int varID, const char *name, int value);
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// vlistDefVarDblKey: Set an arbitrary keyword/double value pair for GRIB API
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void    vlistDefVarDblKey(int vlistID, int varID, const char *name, double value);

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// vlistHasVarKey: returns 1 if meta-data key was read, 0 otherwise
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int     vlistHasVarKey(int vlistID, int varID, const char *name);
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// vlistInqVarDblKey: raw access to GRIB meta-data
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double  vlistInqVarDblKey(int vlistID, int varID, const char *name);
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// vlistInqVarIntKey: raw access to GRIB meta-data
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int     vlistInqVarIntKey(int vlistID, int varID, const char *name);
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// CDI attributes
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//      cdiInqNatts: Get number of attributes assigned to this variable
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int     cdiInqNatts(int cdiID, int varID, int *nattsp);
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//      cdiInqAtt: Get information about an attribute
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int     cdiInqAtt(int cdiID, int varID, int attrnum, char *name, int *typep, int *lenp);
int     cdiDelAtt(int cdiID, int varID, const char *name);

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int     cdiCopyAtts(int cdiID1, int varID1, int cdiID2, int varID2);

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//      cdiDefAttInt: Define an integer attribute
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int     cdiDefAttInt(int cdiID, int varID, const char *name, int type, int len, const int ip[]);
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//      cdiDefAttFlt: Define a floating point attribute
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int     cdiDefAttFlt(int cdiID, int varID, const char *name, int type, int len, const double dp[]);
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//      cdiDefAttTxt: Define a text attribute
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int     cdiDefAttTxt(int cdiID, int varID, const char *name, int len, const char *tp_cbuf);

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//      cdiInqAttInt: Get the value(s) of an integer attribute
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int     cdiInqAttInt(int cdiID, int varID, const char *name, int mlen, int ip[]);
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//      cdiInqAttFlt: Get the value(s) of a floating point attribute
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int     cdiInqAttFlt(int cdiID, int varID, const char *name, int mlen, double dp[]);
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//      cdiInqAttTxt: Get the value(s) of a text attribute
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int     cdiInqAttTxt(int cdiID, int varID, const char *name, int mlen, char *tp_cbuf);
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// GRID routines
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void    gridName(int gridtype, char *gridname);
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const char *gridNamePtr(int gridtype);
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void    gridCompress(int gridID);

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void    gridDefMaskGME(int gridID, const int mask[]);
int     gridInqMaskGME(int gridID, int mask[]);
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void    gridDefMask(int gridID, const int mask[]);
int     gridInqMask(int gridID, int mask[]);
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//      gridCreate: Create a horizontal Grid
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int     gridCreate(int gridtype, size_t size);
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//      gridDestroy: Destroy a horizontal Grid
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void    gridDestroy(int gridID);

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//      gridDuplicate: Duplicate a Grid
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int     gridDuplicate(int gridID);

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//      gridDefProj: Define the projection ID of a Grid
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void    gridDefProj(int gridID, int projID);

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//      gridInqProj: Get the projection ID of a Grid
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int     gridInqProj(int gridID);

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//      gridInqProjType: Get the projection type
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int     gridInqProjType(int gridID);

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//      gridInqType: Get the type of a Grid
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int     gridInqType(int gridID);

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//      gridInqSize: Get the size of a Grid
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size_t  gridInqSize(int gridID);
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//      gridDefXsize: Define the size of a X-axis
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void    gridDefXsize(int gridID, size_t xsize);
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//      gridInqXsize: Get the size of a X-axis
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size_t  gridInqXsize(int gridID);
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//      gridDefYsize: Define the size of a Y-axis
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void    gridDefYsize(int gridID, size_t ysize);
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//      gridInqYsize: Get the size of a Y-axis
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size_t  gridInqYsize(int gridID);
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//      gridDefNP: Define the number of parallels between a pole and the equator
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void    gridDefNP(int gridID, int np);

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//      gridInqNP: Get the number of parallels between a pole and the equator
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int     gridInqNP(int gridID);

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//      gridDefXvals: Define the values of a X-axis
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void    gridDefXvals(int gridID, const double xvals[]);
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//      gridInqXvals: Get all values of a X-axis
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size_t  gridInqXvals(int gridID, double xvals[]);
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size_t  gridInqXvalsPart(int gridID, int start, size_t size, double xvals[]);
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//      gridInqXIsc: Find out whether X-coordinate is of type CHAR
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int     gridInqXIsc(int gridID);

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//      gridInqXCvals: Get strings from X-axis in case grid is of type GRID_CHARXY
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size_t  gridInqXCvals(int gridID, char *xcvals[]);
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//      gridDefYvals: Define the values of a Y-axis
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void    gridDefYvals(int gridID, const double yvals[]);
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//      gridInqYvals: Get all values of a Y-axis
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size_t  gridInqYvals(int gridID, double yvals[]);
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size_t  gridInqYvalsPart(int gridID, int start, size_t size, double yvals[]);
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//      gridInqYIsc: Find out whether Y-coordinate is of type CHAR
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int     gridInqYIsc(int gridID);

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//      gridInqYCvals: Get strings from Y-axis in case grid is of type GRID_CHARXY
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size_t  gridInqYCvals(int gridID, char *ycvals[]);
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// CDI var keys
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#define  CDI_KEY_TABLESVERSION                 801  // GRIB2 tablesVersion
#define  CDI_KEY_LOCALTABLESVERSION            802  // GRIB2 localTablesVersion
#define  CDI_KEY_TYPEOFGENERATINGPROCESS       803  // GRIB2 typeOfGeneratingProcess
#define  CDI_KEY_PRODUCTDEFINITIONTEMPLATE     804  // GRIB2 productDefinitionTemplate
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#define  CDI_KEY_TYPEOFPROCESSEDDATA           805  // GRIB2 typeOfProcessedData
#define  CDI_KEY_SHAPEOFTHEEARTH               806  // GRIB2 shapeOfTheEarth
#define  CDI_KEY_BACKGROUNDPROCESS             807  // GRIB2 backgroundProcess
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#define  CDI_KEY_TYPEOFENSEMBLEFORECAST        808  // GRIB2 typeOfEnsembleForecast
#define  CDI_KEY_NUMBEROFFORECASTSINENSEMBLE   809  // GRIB2 numberOfForecastsInEnsemble
#define  CDI_KEY_PERTURBATIONNUMBER            810  // GRIB2 perturbationNumber
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#define  CDI_KEY_CENTRE                        811  // GRIB2 centre
#define  CDI_KEY_SUBCENTRE                     812  // GRIB2 subCentre
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#define  CDI_KEY_MPIMTYPE                      813  // GRIB2 mpimType
#define  CDI_KEY_MPIMCLASS                     814  // GRIB2 mpimClass
#define  CDI_KEY_MPIMUSER                      815  // GRIB2 mpimUser
#define  CDI_KEY_REVSTATUS                     816  // GRIB2 revStatus
#define  CDI_KEY_REVNUMBER                     817  // GRIB2 revNumber
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#define  CDI_KEY_GRIB2LOCALSECTIONNUMBER       818  // GRIB2 grib2LocalSectionNumber
#define  CDI_KEY_SECTION2PADDINGLENGTH         819  // GRIB2 length of section2Padding
#define  CDI_KEY_SECTION2PADDING               820  // GRIB2 section2Padding
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#define  CDI_KEY_UVRELATIVETOGRID              821  // GRIB  uvRelativeToGrid
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#define  CDI_KEY_CONSTITUENTTYPE               822  // GRIB2 constituentType
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#define  CDI_KEY_TYPEOFTIMEINCREMENT           823  // GRIB2 typeOfTimeIncrement
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//      cdiDefKeyInt: Define an integer value from a key of a CDI variable
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int     cdiDefKeyInt(int cdiID, int varID, int key, int value);

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//      cdiInqKeyInt: Get an integer value from a key of a CDI variable
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int     cdiInqKeyInt(int cdiID, int varID, int key, int *value);

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//      cdiDefKeyBytes: Define a bytes array from a key of a CDI variable
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int     cdiDefKeyBytes(int cdiID, int varID, int key, const unsigned char bytes[], int length);
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//      cdiInqKeyBytes: Get a bytes array from a key of a CDI variable
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int     cdiInqKeyBytes(int cdiID, int varID, int key, unsigned char bytes[], int *length);
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//      cdiDefKeyString: Define a string value from a key of a CDI variable
int     cdiDefKeyString(int cdiID, int varID, int key, const char *string);

//      cdiInqKeyString: Get a string value from a key of a CDI variable
int     cdiInqKeyString(int cdiID, int varID, int key, char *string, int *length);

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//      cdiInqKeyLen: Get the length of the string representation of the key
int     cdiInqKeyLen(int cdiID, int varID, int key, int *length);

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int     cdiCopyKeys(int cdiID1, int varID1, int cdiID2, int varID2);

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// CDI grid keys
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#define  CDI_KEY_VDIMNAME                      920  // Vertex dimension name
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#define  CDI_KEY_GRIDMAP_VARTYPE               921  // Grid mapping var datatype
#define  CDI_KEY_GRIDMAP_VARNAME               922  // Grid mapping var name
#define  CDI_KEY_GRIDMAP_NAME                  923  // Grid mapping name
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// CDI zaxis keys
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#define  CDI_KEY_DIMNAME                       941  // Dimension name
#define  CDI_KEY_NAME                          942  // Variable name
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#define  CDI_KEY_LONGNAME                      943  // Long name of the variable
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#define  CDI_KEY_STDNAME                       944  // CF Standard name of the variable
#define  CDI_KEY_UNITS                         945  // Units of the variable
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#define  CDI_KEY_PSNAME      950  // Z-axis surface pressure name
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#define  CDI_KEY_P0NAME      951  // Z-axis reference pressure name
#define  CDI_KEY_P0VALUE     952  // Z-axis reference pressure in Pa
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//      cdiZaxisDefKeyStr: Define a CDI Z-axis string value from a key
int     cdiZaxisDefKeyStr(int zaxisID, int key, int size, const char *mesg);

//      cdiZaxisInqKeyStr: Get a CDI Z-axis string value from a key
int     cdiZaxisInqKeyStr(int zaxisID, int key, int size, char *mesg);

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//      cdiZaxisDefKeyFlt: Define a CDI Z-axis floating point value from a key
int     cdiZaxisDefKeyFlt(int zaxisID, int key, double value);

//      cdiZaxisInqKeyFlt: Get a CDI Z-axis floating point value from a key
int     cdiZaxisInqKeyFlt(int zaxisID, int key, double *value);

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//      gridDefXname: Define the name of a X-axis
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void    gridDefXname(int gridID, const char *xname);
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//      gridInqXname: Get the name of a X-axis
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void    gridInqXname(int gridID, char *xname);

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//      gridDefXlongname: Define the longname of a X-axis
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void    gridDefXlongname(int gridID, const char *xlongname);
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//      gridInqXlongname: Get the longname of a X-axis
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void    gridInqXlongname(int gridID, char *xlongname);

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//      gridDefXunits: Define the units of a X-axis
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void    gridDefXunits(int gridID, const char *xunits);
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//      gridInqXunits: Get the units of a X-axis
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void    gridInqXunits(int gridID, char *xunits);

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//      gridDefYname: Define the name of a Y-axis
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void    gridDefYname(int gridID, const char *yname);
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//      gridInqYname: Get the name of a Y-axis
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void    gridInqYname(int gridID, char *yname);

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//      gridDefYlongname: Define the longname of a Y-axis
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void    gridDefYlongname(int gridID, const char *ylongname);
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