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/* This is part of the netCDF package.
Copyright 2018 University Corporation for Atmospheric Research/Unidata
See COPYRIGHT file for conditions of use.
Test netcdf-4 variables.
Ed Hartnett, 8/7/24
*/
#include "nc_tests.h"
#include "err_macros.h"
#include "netcdf.h"
#define FILE_NAME "tst_zstd.nc"
#define VAR_FLOAT_NAME "GALE_data"
#define VAR_DOUBLE_NAME "ERICA_data"
#define NDIM2 2
#define DIM1_NAME "x"
#define DIM1_LEN 2
#define DIM2_NAME "y"
#define DIM2_LEN 3
int
main(int argc, char **argv)
{
int ncid, dimids[NDIM2];
int float_varid, double_varid;
float float_in[DIM1_LEN][DIM2_LEN], float_out[DIM1_LEN][DIM2_LEN] = {{-.1f, 9999.99f, 100.001f},{-.1f, 9999.99f, 100.001f}};
double double_in[DIM1_LEN][DIM2_LEN], double_out[DIM1_LEN][DIM2_LEN] = {{0.02, .1128, 1090.1},{0.02, .1128, 1090.1}};
int i, j, ret;
printf("\n*** Testing netcdf-4 zstd compression.\n");
printf("*** testing netcdf-4 zstd with float...");
{
int nvars_in, varids_in[2];
/* Create a netcdf file with one dim and two vars. */
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
if (nc_def_dim(ncid, DIM1_NAME, DIM1_LEN, &dimids[0])) ERR;
if (nc_def_dim(ncid, DIM2_NAME, DIM2_LEN, &dimids[1])) ERR;
if (nc_def_var(ncid, VAR_FLOAT_NAME, NC_FLOAT, 2, dimids, &float_varid)) ERR;
if (nc_def_var(ncid, VAR_DOUBLE_NAME, NC_DOUBLE, 2, dimids, &double_varid)) ERR;
if ((ret = nc_def_var_zstandard(ncid, float_varid, 4)))
{
printf("error: %s\n", nc_strerror(ret));
ERR;
}
if (nc_def_var_zstandard(ncid, double_varid, 4)) ERR;
if (nc_put_var_float(ncid, float_varid, (float *)float_out)) ERR;
if (nc_put_var_double(ncid, double_varid, (double *)double_out)) ERR;
if (nc_close(ncid)) ERR;
/* Open the file and make sure nc_inq_varids yields correct
* result. */
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
if (nc_inq_varids(ncid, &nvars_in, varids_in)) ERR;
if (nvars_in != 2 || varids_in[0] != 0 || varids_in[1] != 1) ERR;
if (nc_get_var_float(ncid, float_varid, (float *)float_in)) ERR;
if (nc_get_var_double(ncid, double_varid, (double *)double_in)) ERR;
for (i = 0; i < DIM1_LEN; i++)
{
for (j = 0; j < DIM2_LEN; j++)
{
if (float_in[i][j] != float_out[i][j]) ERR;
if (double_in[i][j] != double_out[i][j]) ERR;
}
}
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
SUMMARIZE_ERR;
FINAL_RESULTS;
}
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