Getting size (in bytes) for some of the common HDF5 native datatypes

h5_dtype_sizes.c

/* A code to print out the data size (in bytes) corresponding to the                                                                                                   
   common HDF5 native datatypes                                                                                                                                        
                                                                                                                                                                       
  Author: Manodeep Sinha                                                                                                                                               
  Date: 20/11/2019                                                                                                                                                     
                                                                                                                                                                       
  Compile with `gcc -Wall -Wextra -std=c99 h5_dtype_sizes.c -o h5_dtype_sizes -lhdf5`                                                                                  
                                                                                                                                                                       
*/


#include <stdio.h>
#include <stdlib.h>
#include <hdf5.h>
#include <hdf5_hl.h>


#define GET_HDF5_SIZE(h5_dtype) {               \
        fprintf(stderr,"sizeof " #h5_dtype " is %zu bytes\n", H5Tget_size(h5_dtype)); \
    }

int main(int argc, char **argv)
{
    (void) argc, (void) argv;

    GET_HDF5_SIZE(H5T_NATIVE_CHAR);
    GET_HDF5_SIZE(H5T_NATIVE_SCHAR);
    GET_HDF5_SIZE(H5T_NATIVE_UCHAR);

    GET_HDF5_SIZE(H5T_NATIVE_SHORT);
    GET_HDF5_SIZE(H5T_NATIVE_USHORT);

    GET_HDF5_SIZE(H5T_NATIVE_INT);
    GET_HDF5_SIZE(H5T_NATIVE_UINT);

    GET_HDF5_SIZE(H5T_NATIVE_LONG);
    GET_HDF5_SIZE(H5T_NATIVE_ULONG);
    GET_HDF5_SIZE(H5T_NATIVE_LLONG);
    GET_HDF5_SIZE(H5T_NATIVE_ULLONG);

    GET_HDF5_SIZE(H5T_NATIVE_FLOAT);
    GET_HDF5_SIZE(H5T_NATIVE_DOUBLE);
    GET_HDF5_SIZE(H5T_NATIVE_LDOUBLE);

    GET_HDF5_SIZE(H5T_NATIVE_HERR);
    GET_HDF5_SIZE(H5T_NATIVE_HBOOL);

    GET_HDF5_SIZE(H5T_NATIVE_INT8);
    GET_HDF5_SIZE(H5T_NATIVE_UINT8);
    GET_HDF5_SIZE(H5T_NATIVE_INT_LEAST8);
    GET_HDF5_SIZE(H5T_NATIVE_UINT_LEAST8);
    GET_HDF5_SIZE(H5T_NATIVE_INT_FAST8);
    GET_HDF5_SIZE(H5T_NATIVE_UINT_FAST8);

    GET_HDF5_SIZE(H5T_NATIVE_INT16);
    GET_HDF5_SIZE(H5T_NATIVE_UINT16);
    GET_HDF5_SIZE(H5T_NATIVE_INT_LEAST16);
    GET_HDF5_SIZE(H5T_NATIVE_UINT_LEAST16);
    GET_HDF5_SIZE(H5T_NATIVE_INT_FAST16);
    GET_HDF5_SIZE(H5T_NATIVE_UINT_FAST16);

    GET_HDF5_SIZE(H5T_NATIVE_INT32);
    GET_HDF5_SIZE(H5T_NATIVE_UINT32);
    GET_HDF5_SIZE(H5T_NATIVE_INT_LEAST32);
    GET_HDF5_SIZE(H5T_NATIVE_UINT_LEAST32);
    GET_HDF5_SIZE(H5T_NATIVE_INT_FAST32);
    GET_HDF5_SIZE(H5T_NATIVE_UINT_FAST32);

    GET_HDF5_SIZE(H5T_NATIVE_INT64);
    GET_HDF5_SIZE(H5T_NATIVE_UINT64);
    GET_HDF5_SIZE(H5T_NATIVE_INT_LEAST64);
    GET_HDF5_SIZE(H5T_NATIVE_UINT_LEAST64);
    GET_HDF5_SIZE(H5T_NATIVE_INT_FAST64);
    GET_HDF5_SIZE(H5T_NATIVE_UINT_FAST64);

    return EXIT_SUCCESS;
}