Added cpp_lib.h

src/CMakeLists.txt

@@ -80,6 +80,7 @@ list( APPEND cdolib_src_files
                 constants.h
                 convert_units.cc
                 convert_units.h
+                cpp_lib.h
                 cthread_debug.cc
                 cthread_debug.h
                 custom_modules.cc

src/Makefile.am

@@ -82,6 +82,7 @@ libcdo_la_SOURCES =		after_dvtrans.cc          \
 				constants.h               \
 				convert_units.cc          \
 				convert_units.h           \
+				cpp_lib.h                 \
 				cthread_debug.cc          \
 				cthread_debug.h           \
 				custom_modules.cc         \

src/cdo.cc

@@ -36,6 +36,7 @@
 
 #include <cdi.h>
 
+#include "cpp_lib.h"
 #include "cdo_getopt.h"
 #include "cdo_rlimit.h"
 #include <mpim_grid.h>
@@ -176,6 +177,11 @@ cdo_version()
 #ifdef CXX_VERSION
   fprintf(fp, "CXX version : %s\n", CXX_VERSION);
 #endif
+  fprintf(fp, "CXX library :");
+#ifdef HAVE_RANGES_ZIP
+  fprintf(fp, " ranges_zip");
+#endif
+  fprintf(fp, "\n");
 #endif
 #ifdef C_COMPILER
   fprintf(fp, "C Compiler: %s\n", C_COMPILER);

src/cdo_features.cc

@@ -139,6 +139,7 @@ static std::map<std::string, std::pair<std::string, bool>> configMap
         { "has-threads", { "PTHREADS", have_threads } },
         { "has-wordexp", { "WORDEXP", have_wordexp } },
         { "has-hirlam_extensions", { "HIRLAM_EXTENSIONS", has_hirlam_extensions } } };
+
 void
 cdo_print_features(void)
 {

src/cpp_lib.h

+/*
+  This file is part of CDO. CDO is a collection of Operators to manipulate and analyse Climate model Data.
+
+  Author: Uwe Schulzweida
+
+*/
+#ifndef CPP_LIB_H
+#define CPP_LIB_H
+
+#include <version>
+
+#if __cpp_lib_ranges_zip >= 202110L
+#define HAVE_RANGES_ZIP 1
+#endif
+
+#endif