netcdf-c/ncdump/tst_string_data.c
2010-06-03 13:24:43 +00:00

104 lines
3.0 KiB
C

/* This is part of the netCDF package. Copyright 2005 University
Corporation for Atmospheric Research/Unidata See COPYRIGHT file for
conditions of use. See www.unidata.ucar.edu for more info.
Create a test file with a string data for ncdump to read.
$Id: tst_string_data.c,v 1.7 2009/01/28 18:19:48 russ Exp $
*/
#include <nc_tests.h>
#include <netcdf.h>
#define FILE4_NAME "tst_string_data.nc"
#define DIM4_NAME "line"
#define DIM4_LEN 5
#define VAR4_NAME "description"
#define VAR4_RANK 1
#define ATT4_NAME "_FillValue"
#define ATT4_LEN 1
int
main(int argc, char **argv)
{
int ncid;
int dimid, varid;
nc_type att_type;
size_t att_len;
int i;
int var_dims[VAR4_RANK];
const char *desc_data[DIM4_LEN] = {
"first string", "second string", "third string", "", "last string"
};
const char *missing_val[ATT4_LEN] = {""};
char *strings_in[DIM4_LEN];
printf("\n*** Testing strings.\n");
printf("*** creating strings test file %s...", FILE4_NAME);
if (nc_create(FILE4_NAME, NC_CLOBBER | NC_NETCDF4, &ncid)) ERR;
/* Declare a line dimension */
if (nc_def_dim(ncid, DIM4_NAME, DIM4_LEN, &dimid)) ERR;
/* Declare a string variable */
var_dims[0] = dimid;
if (nc_def_var(ncid, VAR4_NAME, NC_STRING, VAR4_RANK, var_dims, &varid)) ERR;
/* Create and write a variable attribute of string type */
if (nc_put_att_string(ncid, varid, ATT4_NAME, ATT4_LEN, missing_val)) ERR;
if (nc_enddef(ncid)) ERR;
/* Store some data of string type */
if(nc_put_var(ncid, varid, desc_data)) ERR;
/* Write the file. */
if (nc_close(ncid)) ERR;
/* Check it out. */
if (nc_open(FILE4_NAME, NC_NOWRITE, &ncid)) ERR;
if (nc_inq_varid(ncid, VAR4_NAME, &varid)) ERR;
if (nc_inq_att(ncid, varid, ATT4_NAME, &att_type, &att_len)) ERR;
if (att_type != NC_STRING || att_len != ATT4_LEN) ERR;
if (nc_get_att_string(ncid, varid, ATT4_NAME, strings_in)) ERR;
if (strcmp(strings_in[0], *missing_val) != 0) ERR;
/* string atts should be explicitly freed when done with them */
nc_free_string(ATT4_LEN, strings_in);
if(nc_get_var_string(ncid, varid, strings_in)) ERR;
for (i = 0; i < DIM4_LEN; i++) {
if (strcmp(strings_in[i], desc_data[i]) != 0) ERR;
}
nc_free_string(DIM4_LEN, strings_in);
/* Try reading strings in with typeless generic interface also */
if(nc_get_var(ncid, varid, strings_in)) ERR;
for (i = 0; i < DIM4_LEN; i++) {
if (strcmp(strings_in[i], desc_data[i]) != 0) ERR;
}
nc_free_string(DIM4_LEN, strings_in);
/* Try reading strings in with typeless generic array interface also */
{
size_t cor[VAR4_RANK], edg[VAR4_RANK];
cor[0] = 0;
edg[0] = DIM4_LEN;
if(nc_get_vara(ncid, varid, cor, edg, strings_in)) ERR;
for (i = 0; i < DIM4_LEN; i++) {
if (strcmp(strings_in[i], desc_data[i]) != 0) ERR;
}
nc_free_string(DIM4_LEN, strings_in);
}
if (nc_close(ncid)) ERR;
SUMMARIZE_ERR;
FINAL_RESULTS;
}