\subsection{Get number of attributes: {\tt cdiInqNatts}}
\index{cdiInqNatts}
\label{cdiInqNatts}
The function {\tt cdiInqNatts} gets the number of attributes assigned to this variable.
\subsubsection*{Usage}
\begin{verbatim}
INTEGER FUNCTION cdiInqNatts(INTEGER cdiID, INTEGER varID, INTEGER nattsp)
\end{verbatim}
\hspace*{4mm}\begin{minipage}[]{15cm}
\begin{deflist}{\tt nattsp\ }
\item[{\tt cdiID}]
CDI ID, from a previous call to {\htmlref{\tt vlistCreate}{vlistCreate}}, {\htmlref{\tt gridCreate}{gridCreate}} or {\htmlref{\tt streamInqVlist}{streamInqVlist}}.
\item[{\tt varID}]
Variable identifier, or {\tt CDI\_GLOBAL} for a global attribute.
\item[{\tt nattsp}]
Pointer to location for returned number of attributes.
\end{deflist}
\end{minipage}
\subsection{Get information about an attribute: {\tt cdiInqAtt}}
\index{cdiInqAtt}
\label{cdiInqAtt}
The function {\tt cdiInqAtt} gets information about an attribute.
\subsubsection*{Usage}
\begin{verbatim}
INTEGER FUNCTION cdiInqAtt(INTEGER cdiID, INTEGER varID, INTEGER attnum,
CHARACTER*(*) name, INTEGER typep, INTEGER lenp)
\end{verbatim}
\hspace*{4mm}\begin{minipage}[]{15cm}
\begin{deflist}{\tt attnum\ }
\item[{\tt cdiID}]
CDI ID, from a previous call to {\htmlref{\tt vlistCreate}{vlistCreate}}, {\htmlref{\tt gridCreate}{gridCreate}} or {\htmlref{\tt streamInqVlist}{streamInqVlist}}.
\item[{\tt varID}]
Variable identifier, or {\tt CDI\_GLOBAL} for a global attribute.
\item[{\tt attnum}]
Attribute number (from 0 to natts-1).
\item[{\tt name}]
Pointer to the location for the returned attribute name. The caller must allocate space for the
returned string. The maximum possible length, in characters, of
the string is given by the predefined constant {\tt CDI\_MAX\_NAME}.
\item[{\tt typep}]
Pointer to location for returned attribute type.
\item[{\tt lenp}]
Pointer to location for returned attribute number.
\end{deflist}
\end{minipage}
\subsection{Define an integer attribute: {\tt cdiDefAttInt}}
\index{cdiDefAttInt}
\label{cdiDefAttInt}
The function {\tt cdiDefAttInt} defines an integer attribute.
\subsubsection*{Usage}
\begin{verbatim}
INTEGER FUNCTION cdiDefAttInt(INTEGER cdiID, INTEGER varID, CHARACTER*(*) name,
INTEGER type, INTEGER len, INTEGER ip)
\end{verbatim}
\hspace*{4mm}\begin{minipage}[]{15cm}
\begin{deflist}{\tt cdiID\ }
\item[{\tt cdiID}]
CDI ID, from a previous call to {\htmlref{\tt vlistCreate}{vlistCreate}} or {\htmlref{\tt gridCreate}{gridCreate}}.
\item[{\tt varID}]
Variable identifier, or {\tt CDI\_GLOBAL} for a global attribute.
\item[{\tt name}]
Attribute name.
\item[{\tt type}]
External data type ({\tt DATATYPE\_INT16} or {\tt DATATYPE\_INT32}).
\item[{\tt len}]
Number of values provided for the attribute.
\item[{\tt ip}]
Pointer to one or more integer values.
\end{deflist}
\end{minipage}
\subsection{Get the value(s) of an integer attribute: {\tt cdiInqAttInt}}
\index{cdiInqAttInt}
\label{cdiInqAttInt}
The function {\tt cdiInqAttInt} gets the values(s) of an integer attribute.
\subsubsection*{Usage}
\begin{verbatim}
INTEGER FUNCTION cdiInqAttInt(INTEGER cdiID, INTEGER varID, CHARACTER*(*) name,
INTEGER mlen, INTEGER ip)
\end{verbatim}
\hspace*{4mm}\begin{minipage}[]{15cm}
\begin{deflist}{\tt cdiID\ }
\item[{\tt cdiID}]
CDI ID, from a previous call to {\htmlref{\tt vlistCreate}{vlistCreate}}, {\htmlref{\tt gridCreate}{gridCreate}} or {\htmlref{\tt streamInqVlist}{streamInqVlist}}.
\item[{\tt varID}]
Variable identifier, or {\tt CDI\_GLOBAL} for a global attribute.
\item[{\tt name}]
Attribute name.
\item[{\tt mlen}]
Number of allocated values provided for the attribute.
\item[{\tt ip}]
Pointer location for returned integer attribute value(s).
\end{deflist}
\end{minipage}
\subsection{Define a floating point attribute: {\tt cdiDefAttFlt}}
\index{cdiDefAttFlt}
\label{cdiDefAttFlt}
The function {\tt cdiDefAttFlt} defines a floating point attribute.
\subsubsection*{Usage}
\begin{verbatim}
INTEGER FUNCTION cdiDefAttFlt(INTEGER cdiID, INTEGER varID, CHARACTER*(*) name,
INTEGER type, INTEGER len, REAL*8 dp)
\end{verbatim}
\hspace*{4mm}\begin{minipage}[]{15cm}
\begin{deflist}{\tt cdiID\ }
\item[{\tt cdiID}]
CDI ID, from a previous call to {\htmlref{\tt vlistCreate}{vlistCreate}} or {\htmlref{\tt gridCreate}{gridCreate}}.
\item[{\tt varID}]
Variable identifier, or {\tt CDI\_GLOBAL} for a global attribute.
\item[{\tt name}]
Attribute name.
\item[{\tt type}]
External data type ({\tt DATATYPE\_FLT32} or {\tt DATATYPE\_FLT64}).
\item[{\tt len}]
Number of values provided for the attribute.
\item[{\tt dp}]
Pointer to one or more floating point values.
\end{deflist}
\end{minipage}
\subsection{Get the value(s) of a floating point attribute: {\tt cdiInqAttFlt}}
\index{cdiInqAttFlt}
\label{cdiInqAttFlt}
The function {\tt cdiInqAttFlt} gets the values(s) of a floating point attribute.
\subsubsection*{Usage}
\begin{verbatim}
INTEGER FUNCTION cdiInqAttFlt(INTEGER cdiID, INTEGER varID, CHARACTER*(*) name,
INTEGER mlen, REAL*8 dp)
\end{verbatim}
\hspace*{4mm}\begin{minipage}[]{15cm}
\begin{deflist}{\tt cdiID\ }
\item[{\tt cdiID}]
CDI ID, from a previous call to {\htmlref{\tt vlistCreate}{vlistCreate}}, {\htmlref{\tt gridCreate}{gridCreate}} or {\htmlref{\tt streamInqVlist}{streamInqVlist}}.
\item[{\tt varID}]
Variable identifier, or {\tt CDI\_GLOBAL} for a global attribute.
\item[{\tt name}]
Attribute name.
\item[{\tt mlen}]
Number of allocated values provided for the attribute.
\item[{\tt dp}]
Pointer location for returned floating point attribute value(s).
\end{deflist}
\end{minipage}
\subsection{Define a text attribute: {\tt cdiDefAttTxt}}
\index{cdiDefAttTxt}
\label{cdiDefAttTxt}
The function {\tt cdiDefAttTxt} defines a text attribute.
\subsubsection*{Usage}
\begin{verbatim}
INTEGER FUNCTION cdiDefAttTxt(INTEGER cdiID, INTEGER varID, CHARACTER*(*) name,
INTEGER len, CHARACTER*(*) tp)
\end{verbatim}
\hspace*{4mm}\begin{minipage}[]{15cm}
\begin{deflist}{\tt cdiID\ }
\item[{\tt cdiID}]
CDI ID, from a previous call to {\htmlref{\tt vlistCreate}{vlistCreate}} or {\htmlref{\tt gridCreate}{gridCreate}}.
\item[{\tt varID}]
Variable identifier, or {\tt CDI\_GLOBAL} for a global attribute.
\item[{\tt name}]
Attribute name.
\item[{\tt len}]
Number of values provided for the attribute.
\item[{\tt tp}]
Pointer to one or more character values.
\end{deflist}
\end{minipage}
\subsection{Get the value(s) of a text attribute: {\tt cdiInqAttTxt}}
\index{cdiInqAttTxt}
\label{cdiInqAttTxt}
The function {\tt cdiInqAttTxt} gets the values(s) of a text attribute.
\subsubsection*{Usage}
\begin{verbatim}
INTEGER FUNCTION cdiInqAttTxt(INTEGER cdiID, INTEGER varID, CHARACTER*(*) name,
INTEGER mlen, CHARACTER*(*) tp)
\end{verbatim}
\hspace*{4mm}\begin{minipage}[]{15cm}
\begin{deflist}{\tt cdiID\ }
\item[{\tt cdiID}]
CDI ID, from a previous call to {\htmlref{\tt vlistCreate}{vlistCreate}}, {\htmlref{\tt gridCreate}{gridCreate}} or {\htmlref{\tt streamInqVlist}{streamInqVlist}}.
\item[{\tt varID}]
Variable identifier, or {\tt CDI\_GLOBAL} for a global attribute.
\item[{\tt name}]
Attribute name.
\item[{\tt mlen}]
Number of allocated values provided for the attribute.
\item[{\tt tp}]
Pointer location for returned text attribute value(s).
