forked from Unidata/netcdf-c
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tst_vars2.c
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tst_vars2.c
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/* This is part of the netCDF package.
Copyright 2005 University Corporation for Atmospheric Research/Unidata
See COPYRIGHT file for conditions of use.
Test netcdf-4 variables.
Ed Hartnett
*/
#include <nc_tests.h>
#include "err_macros.h"
#include "netcdf.h"
#include "netcdf_f.h"
#define FILE_NAME "tst_vars2.nc"
#define NUM_DIMS 1
#define NUM_VARS 3
#define DIM1_LEN NC_UNLIMITED
#define DIM1_NAME "Hoplites_Engaged"
#define VAR_NAME "Battle_of_Marathon"
#define LOSSES_NAME "Miltiades_Losses"
#define NDIMS1 1
#define MAX_CNUM 4
int
main(int argc, char **argv)
{
int ncid, dimids[NUM_DIMS];
int varid;
int nvars_in, varids_in[NUM_VARS] = {0};
signed char fill_value = 42, fill_value_in;
nc_type xtype_in;
size_t len_in;
char name_in[NC_MAX_NAME + 1];
int attnum_in;
int cnum;
char too_long_name[NC_MAX_NAME + 2];
/* Set up a name that is too long for netCDF. */
memset(too_long_name, 'a', NC_MAX_NAME + 1);
too_long_name[NC_MAX_NAME + 1] = 0;
printf("\n*** Testing netcdf-4 variable functions, even more.\n");
for (cnum = 0; cnum < MAX_CNUM; cnum++)
{
int cmode = 0;
switch(cnum)
{
case 0:
printf("*** Testing with classic format:\n");
cmode = 0;
break;
case 1:
printf("*** Testing with 64-bit offset format:\n");
cmode = NC_64BIT_OFFSET;
break;
case 2:
printf("*** Testing with HDF5:\n");
cmode = NC_NETCDF4|NC_CLOBBER;
break;
case 3:
printf("*** Testing with HDF5, netCDF Classic Model:\n");
cmode = NC_CLASSIC_MODEL | NC_NETCDF4;
break;
default:
return 1;
}
#define FILE_NAME2 "tst_vars2_latefill.nc"
printf("**** testing simple fill value attribute creation...");
{
int status;
int schar_data = 0;
size_t index[1] = {0};
int dimid;
/* Create a netcdf-4 file with one scalar var. Add fill
* value. */
if (nc_create(FILE_NAME2, cmode, &ncid)) ERR;
if (nc_def_dim(ncid, VAR_NAME, TEST_VAL_42, &dimid)) ERR;
if (nc_def_var(ncid, VAR_NAME, NC_BYTE, 1, &dimid, &varid)) ERR;
if (nc_put_att_schar(ncid, varid, _FillValue, NC_BYTE, 1, &fill_value)) ERR;
if (nc_enddef(ncid)) ERR;
if (nc_put_var1(ncid, varid, index, &schar_data)) ERR;
if (nc_redef(ncid)) ERR;
status = nc_put_att_schar(ncid, varid, _FillValue, NC_BYTE, 1, &fill_value);
if (status != NC_ELATEFILL)
printf("Error at line %d: expecting NC_ELATEFILL but got %s\n",__LINE__,nc_strerror(status));
if (nc_close(ncid)) ERR;
/* Open the file and check. */
if (nc_open(FILE_NAME2, NC_WRITE, &ncid)) ERR;
if (nc_inq_varids(ncid, &nvars_in, varids_in)) ERR;
if (nvars_in != 1 || varids_in[0] != 0) ERR;
if (nc_inq_varname(ncid, 0, name_in)) ERR;
if (strcmp(name_in, VAR_NAME)) ERR;
if (nc_inq_att(ncid, varid, _FillValue, &xtype_in, &len_in)) ERR;
if (xtype_in != NC_BYTE || len_in != 1) ERR;
if (nc_get_att(ncid, varid, _FillValue, &fill_value_in)) ERR;
if (fill_value_in != fill_value) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("**** testing simple fill value with data read...");
{
size_t start[NUM_DIMS], count[NUM_DIMS];
signed char data = 99, data_in;
/* Create a netcdf-4 file with one unlimited dim and one
* var. Add fill value. */
if (nc_create(FILE_NAME, cmode, &ncid)) ERR;
if (nc_def_dim(ncid, DIM1_NAME, DIM1_LEN, &dimids[0])) ERR;
if (nc_def_var(ncid, VAR_NAME, NC_BYTE, NUM_DIMS, dimids, &varid)) ERR;
if (nc_put_att_schar(ncid, varid, _FillValue, NC_BYTE, 1, &fill_value)) ERR;
if (nc_enddef(ncid)) ERR;
/* Write the second record. */
start[0] = 1;
count[0] = 1;
if (nc_put_vara_schar(ncid, varid, start, count, &data)) ERR;
/* Read the first record, it should be the fill value. */
start[0] = 0;
if (nc_get_vara_schar(ncid, varid, start, count, &data_in)) ERR;
if (data_in != fill_value) ERR;
/* Read the second record, it should be the value we just wrote
* there. */
start[0] = 1;
if (nc_get_vara_schar(ncid, varid, start, count, &data_in)) ERR;
if (data_in != data) ERR;
/* Close up. */
if (nc_close(ncid)) ERR;
/* Open the file and check. */
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
/* This will not work because file was opened read-only. */
if (nc_rename_var(ncid, 0, "something_very_new") != NC_EPERM) ERR;
/* Check metadata. */
if (nc_inq_varids(ncid, &nvars_in, varids_in)) ERR;
if (nvars_in != 1 || varids_in[0] != 0) ERR;
if (nc_inq_varname(ncid, 0, name_in)) ERR;
if (strcmp(name_in, VAR_NAME)) ERR;
/* Check fill value att. */
if (nc_inq_att(ncid, varid, _FillValue, &xtype_in, &len_in)) ERR;
if (xtype_in != NC_BYTE || len_in != 1) ERR;
if (nc_get_att(ncid, varid, _FillValue, &fill_value_in)) ERR;
if (fill_value_in != fill_value) ERR;
/* Read the first record, it should be the fill value. */
start[0] = 0;
if (nc_get_vara_schar(ncid, varid, start, count, &data_in)) ERR;
if (data_in != fill_value) ERR;
/* Read the second record, it should be the value we just wrote
* there. */
start[0] = 1;
if (nc_get_vara_schar(ncid, varid, start, count, &data_in)) ERR;
if (data_in != data) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("**** testing fill value with one other attribute...");
{
int losses_value = 192, losses_value_in;
/* Create a netcdf-4 file with one dim and one var. Add another
* attribute, then fill value. */
if (nc_create(FILE_NAME, cmode, &ncid)) ERR;
if (nc_def_dim(ncid, DIM1_NAME, DIM1_LEN, &dimids[0])) ERR;
if (nc_def_var(ncid, VAR_NAME, NC_BYTE, NUM_DIMS, dimids, &varid)) ERR;
if (nc_put_att_int(ncid, varid, LOSSES_NAME, NC_INT, 1, &losses_value)) ERR;
if (nc_put_att_schar(ncid, varid, _FillValue, NC_BYTE, 1, &fill_value)) ERR;
if (nc_close(ncid)) ERR;
/* Open the file and check. */
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
if (nc_inq_att(ncid, 0, LOSSES_NAME, &xtype_in, &len_in)) ERR;
if (xtype_in != NC_INT || len_in != 1) ERR;
if (nc_get_att(ncid, 0, LOSSES_NAME, &losses_value_in)) ERR;
if (losses_value_in != losses_value) ERR;
if (nc_inq_att(ncid, 0, _FillValue, &xtype_in, &len_in)) ERR;
if (xtype_in != NC_BYTE || len_in != 1) ERR;
if (nc_get_att(ncid, 0, _FillValue, &fill_value_in)) ERR;
if (fill_value_in != fill_value) ERR;
if (nc_inq_attid(ncid, 0, LOSSES_NAME, &attnum_in)) ERR;
if (attnum_in != 0) ERR;
if (nc_inq_attid(ncid, 0, _FillValue, &attnum_in)) ERR;
if (attnum_in != 1) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("**** testing fill value with three other attributes...");
{
#define NUM_LEADERS 3
char leader[NUM_LEADERS][NC_MAX_NAME + 1] = {"hair_length_of_strategoi",
"hair_length_of_Miltiades",
"hair_length_of_Darius_I"};
short hair_length[NUM_LEADERS] = {3, 11, 4};
short short_in;
int a;
/* Create a netcdf file with one dim and one var. Add 3
* attributes, then fill value. */
if (nc_create(FILE_NAME, cmode, &ncid)) ERR;
if (nc_def_dim(ncid, DIM1_NAME, DIM1_LEN, &dimids[0])) ERR;
if (nc_def_var(ncid, VAR_NAME, NC_BYTE, NUM_DIMS, dimids, &varid)) ERR;
for (a = 0; a < NUM_LEADERS; a++)
if (nc_put_att_short(ncid, varid, leader[a], NC_SHORT, 1, &hair_length[a])) ERR;
if (nc_put_att_schar(ncid, varid, _FillValue, NC_BYTE, 1, &fill_value)) ERR;
if (nc_close(ncid)) ERR;
/* Open the file. */
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
/* Check our three hair-related attributes. */
for (a = 0; a < NUM_LEADERS; a++)
{
if (nc_inq_att(ncid, 0, leader[a], &xtype_in, &len_in)) ERR;
if (xtype_in != NC_SHORT || len_in != 1) ERR;
if (nc_get_att(ncid, 0, leader[a], &short_in)) ERR;
if (short_in != hair_length[a]) ERR;
if (nc_inq_attid(ncid, 0, leader[a], &attnum_in)) ERR;
if (attnum_in != a) ERR;
}
/* Check our fill value attribute. */
if (nc_inq_att(ncid, 0, _FillValue, &xtype_in, &len_in)) ERR;
if (xtype_in != NC_BYTE || len_in != 1) ERR;
if (nc_get_att(ncid, 0, _FillValue, &fill_value_in)) ERR;
if (fill_value_in != fill_value) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("**** testing fill value with simple example...");
{
/* Dims stuff. */
#define NDIMS 3
#define VAR_DIMS 3
#define DIM_A "dim1"
#define DIM_A_LEN 4
#define DIM_B "dim2"
#define DIM_B_LEN 3
#define DIM_C "dim3"
#define DIM_C_LEN NC_UNLIMITED
/* Var stuff. */
#define CXX_VAR_NAME "P"
/* Att stuff. */
#define NUM_ATTS 4
#define LONG_NAME "long_name"
#define PRES_MAX_WIND "pressure at maximum wind"
#define UNITS "units"
#define HECTOPASCALS "hectopascals"
int dimid[NDIMS], var_dimids[VAR_DIMS] = {2, 1, 0};
float fill_value = -9999.0f;
char long_name[] = PRES_MAX_WIND;
if (nc_create(FILE_NAME, cmode, &ncid)) ERR;
/* Create dims. */
if (nc_def_dim(ncid, DIM_A, DIM_A_LEN, &dimid[0])) ERR;
if (nc_def_dim (ncid, DIM_B, DIM_B_LEN, &dimid[1])) ERR;
if (nc_def_dim(ncid, DIM_C, DIM_C_LEN, &dimid[2])) ERR;
/* Create var. */
if (nc_def_var(ncid, CXX_VAR_NAME, NC_FLOAT, VAR_DIMS,
var_dimids, &varid)) ERR;
if (varid) ERR;
if (nc_put_att(ncid, varid, LONG_NAME, NC_CHAR, strlen(long_name) + 1,
long_name)) ERR;
if (nc_put_att(ncid, varid, UNITS, NC_CHAR, strlen(UNITS) + 1,
UNITS)) ERR;
/* Check to ensure the atts have their expected attnums. */
if (nc_inq_attid(ncid, 0, LONG_NAME, &attnum_in)) ERR;
if (attnum_in != 0) ERR;
if (nc_inq_attid(ncid, 0, UNITS, &attnum_in)) ERR;
if (attnum_in != 1) ERR;
/* Now add a fill value. This will acutually cause HDF5 to
* destroy the dataset and recreate it, recreating also the
* three attributes that are attached to it. */
if (nc_put_att(ncid, varid, _FillValue, NC_FLOAT,
1, &fill_value)) ERR;
/* Check to ensure the atts have their expected attnums. */
if (nc_inq_attid(ncid, 0, LONG_NAME, &attnum_in)) ERR;
if (attnum_in != 0) ERR;
if (nc_inq_attid(ncid, 0, UNITS, &attnum_in)) ERR;
if (attnum_in != 1) ERR;
if (nc_close(ncid)) ERR;
/* Open the file and check. */
if (nc_open(FILE_NAME, 0, &ncid)) ERR;
if (nc_inq_attid(ncid, 0, LONG_NAME, &attnum_in)) ERR;
if (attnum_in != 0) ERR;
if (nc_inq_attid(ncid, 0, UNITS, &attnum_in)) ERR;
if (attnum_in != 1) ERR;
if (nc_inq_attid(ncid, 0, _FillValue, &attnum_in)) ERR;
if (attnum_in != 2) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
#ifndef NO_NETCDF_2
/* The following test is an attempt to recreate a problem occurring
in the cxx tests. The file is created in c++ in nctsts.cpp. */
printf("**** testing fill value with example from cxx tests in v2 api...");
{
/* Dims stuff. */
#define NDIMS_1 4
#define VAR_DIMS 3
#define LAT "lat"
#define LAT_LEN 4
#define LON "lon"
#define LON_LEN 3
#define FRTIMED "frtimed"
#define FRTIMED_LEN NC_UNLIMITED
#define TIMELEN "timelen"
#define TIMELEN_LEN 20
/* Var stuff. */
#define CXX_VAR_NAME "P"
/* Att stuff. */
#define NUM_ATTS 4
#define LONG_NAME "long_name"
#define UNITS "units"
int dimid[NDIMS_1], var_dimids[VAR_DIMS] = {2, 0, 1};
float fill_value = -9999.0f;
char long_name[] = PRES_MAX_WIND;
int i;
ncid = nccreate(FILE_NAME, NC_NETCDF4);
/* Create dims. */
dimid[0] = ncdimdef(ncid, LAT, LAT_LEN);
dimid[1] = ncdimdef(ncid, LON, LON_LEN);
dimid[2] = ncdimdef(ncid, FRTIMED, FRTIMED_LEN);
dimid[3] = ncdimdef(ncid, TIMELEN, TIMELEN_LEN);
/* Just check our dimids to see that they are correct. */
for (i = 0; i < NDIMS_1; i++)
if (dimid[i] != i) ERR;
/* Create var. */
varid = ncvardef(ncid, CXX_VAR_NAME, NC_FLOAT, VAR_DIMS, var_dimids);
if (varid) ERR;
/* Add three atts to the var, long_name, units, and
* valid_range. */
if (nc_put_att(ncid, varid, LONG_NAME, NC_CHAR, strlen(long_name) + 1,
long_name)) ERR;
if (nc_put_att(ncid, varid, UNITS, NC_CHAR, strlen(UNITS) + 1,
UNITS)) ERR;
/* Check to ensure the atts have their expected attnums. */
if (nc_inq_attid(ncid, 0, LONG_NAME, &attnum_in)) ERR;
if (attnum_in != 0) ERR;
if (nc_inq_attid(ncid, 0, UNITS, &attnum_in)) ERR;
if (attnum_in != 1) ERR;
/* Now add a fill value. This will acutually cause HDF5 to
* destroy the dataset and recreate it, recreating also the
* three attributes that are attached to it. */
ncattput(ncid, varid, _FillValue, NC_FLOAT, 1, &fill_value);
/* Check to ensure the atts have their expected attnums. */
if (nc_inq_attid(ncid, 0, LONG_NAME, &attnum_in)) ERR;
if (attnum_in != 0) ERR;
if (nc_inq_attid(ncid, 0, UNITS, &attnum_in)) ERR;
if (attnum_in != 1) ERR;
if (nc_inq_attid(ncid, 0, _FillValue, &attnum_in)) ERR;
if (attnum_in != 2) ERR;
ncclose(ncid);
/* Open the file and check. */
ncid = ncopen(FILE_NAME, 0);
if (nc_inq_attid(ncid, 0, LONG_NAME, &attnum_in)) ERR;
if (attnum_in != 0) ERR;
if (nc_inq_attid(ncid, 0, UNITS, &attnum_in)) ERR;
if (attnum_in != 1) ERR;
if (nc_inq_attid(ncid, 0, _FillValue, &attnum_in)) ERR;
if (attnum_in != 2) ERR;
ncclose(ncid);
}
SUMMARIZE_ERR;
#endif /* NO_NETCDF_2 */
}
printf("**** testing create order varids...");
#define UNITS "units"
#define DIMNAME "x"
#define VARNAME "data"
{
/* This test contributed by Jeff Whitaker of NOAA - Thanks Jeff! */
int ncid, dimid, varid, xvarid;
char units[] = "zlotys";
if (nc_create(FILE_NAME, NC_NETCDF4|NC_CLASSIC_MODEL, &ncid)) ERR;
if (nc_def_dim(ncid, DIMNAME, 1, &dimid)) ERR;
if (nc_enddef(ncid)) ERR;
if (nc_redef(ncid)) ERR;
/* Check that these netCDF-4 things will fail on this classic
* model file. */
if (nc_def_var(ncid, DIMNAME, NC_UINT, 1, &dimid, &xvarid) != NC_ESTRICTNC3) ERR;
if (nc_def_var(ncid, DIMNAME, NC_INT, NC_MAX_VAR_DIMS + 1, &dimid,
&xvarid) != NC_EMAXDIMS) ERR;
if (nc_enddef(ncid)) ERR;
if (nc_def_var(ncid, DIMNAME, NC_INT, 1, &dimid, &xvarid) != NC_ENOTINDEFINE) ERR;
if (nc_redef(ncid)) ERR;
/* Define the variable for the test. */
if (nc_def_var(ncid, DIMNAME, NC_INT, 1, &dimid, &xvarid)) ERR;
if (nc_put_att_text(ncid, xvarid, UNITS, strlen(units), units)) ERR;
if (nc_def_var(ncid, VARNAME, NC_INT, 1, &dimid, &varid)) ERR;
if (nc_close(ncid)) ERR;
if (nc_open(FILE_NAME, 0, &ncid)) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
#define RANK_wind 1
printf("**** testing simple variable renaming...");
{
/* This test contributed by Jeff Whitaker of NOAA - Thanks Jeff! */
int ncid, lat_dim, time_dim, lon_dim, wind_id;
size_t lat_len = 73, time_len = 10, lon_len = 145;
int cdf_goober[1];
/* if (nc_set_default_format(NC_FORMAT_NETCDF4, NULL)) ERR;*/
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
/* define dimensions */
if (nc_def_dim(ncid, "a", lon_len, &lon_dim)) ERR;
if (nc_def_dim(ncid, "b", lat_len, &lat_dim)) ERR;
if (nc_def_dim(ncid, "c", time_len, &time_dim)) ERR;
if (nc_put_att_text(ncid, NC_GLOBAL, "a", 3, "bar")) ERR;
cdf_goober[0] = 2;
if (nc_put_att_int(ncid, NC_GLOBAL, "b", NC_INT, 1, cdf_goober)) ERR;
/* define variables */
if (nc_def_var(ncid, "aa", NC_FLOAT, RANK_wind, &lon_dim, &wind_id)) ERR;
if (nc_close(ncid)) ERR;
if (nc_open(FILE_NAME, NC_WRITE, &ncid)) ERR;
/* These won't work. */
if (nc_rename_var(ncid + TEST_VAL_42, 0, "az") != NC_EBADID) ERR;
if (nc_rename_var(ncid + MILLION, 0, "az") != NC_EBADID) ERR;
/* Rename the var. */
if (nc_rename_var(ncid, 0, "az")) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("**** testing dimension and variable renaming...");
{
/* This test based on code contributed by Jeff Whitaker of NOAA
* - Thanks Jeff! */
int ncid, lat_dim, time_dim, lon_dim, wind_id, temp2_id;
size_t lat_len = 73, time_len = 10, lon_len = 145;
int wind_dims[RANK_wind], wind_slobber[1], cdf_goober[1];
if (nc_create(FILE_NAME, NC_NETCDF4|NC_CLASSIC_MODEL, &ncid)) ERR;
/* define dimensions */
if (nc_def_dim(ncid, "lon", lon_len, &lon_dim)) ERR;
if (nc_def_dim(ncid, "lat", lat_len, &lat_dim)) ERR;
if (nc_def_dim(ncid, "time", time_len, &time_dim)) ERR;
if (nc_put_att_text(ncid, NC_GLOBAL, "foo", 3, "bar")) ERR;
cdf_goober[0] = 2;
if (nc_put_att_int(ncid, NC_GLOBAL, "goober", NC_INT, 1, cdf_goober)) ERR;
/* define variables */
wind_dims[0] = lon_dim;
if (nc_def_var(ncid, "temp", NC_FLOAT, RANK_wind, wind_dims, &wind_id)) ERR;
if (nc_def_var(ncid, "temp2", NC_FLOAT, RANK_wind, wind_dims, &temp2_id)) ERR;
if (nc_put_att_text(ncid, wind_id, "bar", 3, "foo")) ERR;
wind_slobber[0] = 3;
if (nc_put_att_int(ncid, wind_id, "slobber", NC_INT, 1, wind_slobber)) ERR;
if (nc_close(ncid)) ERR;
/* re-open dataset*/
if (nc_open(FILE_NAME, NC_WRITE, &ncid)) ERR;
if (nc_inq_dimid(ncid, "lon", &lon_dim)) ERR;
/* THese won't work due to bad params. */
if (nc_rename_dim(ncid + MILLION, lon_dim, "longitude") != NC_EBADID) ERR;
if (nc_rename_dim(ncid + TEST_VAL_42, lon_dim, "longitude") != NC_EBADID) ERR;
if (nc_rename_dim(ncid, lon_dim, NULL) != NC_EINVAL) ERR;
/* rename dimension */
if (nc_rename_dim(ncid, lon_dim, "longitude")) ERR;
/* These will fail due to bad params. */
if (nc_inq_varid(ncid + MILLION, "temp", &wind_id) != NC_EBADID) ERR;
if (nc_inq_varid(ncid + TEST_VAL_42, "temp", &wind_id) != NC_EBADID) ERR;
if (nc_inq_varid(ncid, NULL, &wind_id) != NC_EINVAL) ERR;
if (nc_inq_varid(ncid, "not_a_real_name", &wind_id) != NC_ENOTVAR) ERR;
if (nc_inq_varid(ncid, BAD_NAME, &wind_id) != NC_ENOTVAR) ERR;
if (nc_inq_varid(ncid, too_long_name, &wind_id) != NC_EMAXNAME) ERR;
/* Now get the variable ID. */
if (nc_inq_varid(ncid, "temp", &wind_id)) ERR;
/* THis also works, pointlessly. */
if (nc_inq_varid(ncid, "temp", NULL)) ERR;
/* These won't work due to bad paramters. */
if (nc_rename_var(ncid + MILLION, wind_id, "wind") != NC_EBADID) ERR;
if (nc_rename_var(ncid, wind_id + TEST_VAL_42, "wind") != NC_ENOTVAR) ERR;
if (nc_rename_var(ncid, -TEST_VAL_42, "wind") != NC_ENOTVAR) ERR;
if (nc_rename_var(ncid, wind_id, BAD_NAME) != NC_EBADNAME) ERR;
if (nc_rename_var(ncid, wind_id, too_long_name) != NC_EMAXNAME) ERR;
if (nc_rename_var(ncid, wind_id, "temp2") != NC_ENAMEINUSE) ERR;
if (nc_rename_var(ncid, wind_id, "windy") != NC_ENOTINDEFINE) ERR;
if (nc_rename_var(ncid, wind_id, NULL) != NC_EINVAL) ERR;
/* rename variable */
if (nc_rename_var(ncid, wind_id, "wind")) ERR;
/* Enter define mode and rename it to something longer. */
if (nc_redef(ncid)) ERR;
if (nc_rename_var(ncid, wind_id, "windy")) ERR;
if (nc_inq_varid(ncid, "windy", &wind_id)) ERR;
if (nc_close(ncid)) ERR;
/* Try again without classic. */
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
/* define dimension */
if (nc_def_dim(ncid, "lon", lon_len, &lon_dim)) ERR;
/* define variable */
wind_dims[0] = lon_dim;
if (nc_def_var(ncid, "temp", NC_FLOAT, RANK_wind, wind_dims, &wind_id)) ERR;
if (nc_enddef(ncid)) ERR;
if (nc_rename_var(ncid, wind_id, "windy")) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
#ifndef NO_NETCDF_2
#define VAR_DIMS2 2
printf("*** testing 2D array of NC_FLOAT with v2 API...");
{
int dimid[VAR_DIMS2];
int ndims, nvars, natts, recdim;
ncid = nccreate(FILE_NAME, NC_NETCDF4);
/* Create dims. */
dimid[0] = ncdimdef(ncid, LAT, LAT_LEN);
dimid[1] = ncdimdef(ncid, LON, LON_LEN);
/* Create var. */
varid = ncvardef(ncid, CXX_VAR_NAME, NC_FLOAT, VAR_DIMS2, dimid);
if (varid != 0) ERR;
ncclose(ncid);
/* Open the file and check. */
ncid = ncopen(FILE_NAME, 0);
ncinquire (ncid, &ndims, &nvars, &natts, &recdim);
if (nvars != 1 || ndims != 2 || natts != 0 || recdim != -1) ERR;
ncclose(ncid);
}
SUMMARIZE_ERR;
#endif /* NO_NETCDF_2 */
#define NDIMS 3
#define NNAMES 4
#define NLINES 13
printf("**** testing funny names for netCDF-4...");
{
int ncid, wind_id;
size_t len[NDIMS] = {7, 3, 1};
int dimids[NDIMS], dimids_in[NDIMS], ndims_in;
char funny_name[NNAMES][NC_MAX_NAME] = {"\a\t", "\f\n", "\r\v", "\b"};
char serious_name[NNAMES][NC_MAX_NAME] = {"name1", "name2", "name3", "name4"};
char name_in[NC_MAX_NAME + 1];
char *speech[NLINES] = {"who would fardels bear, ",
"To grunt and sweat under a weary life, ",
"But that the dread of something after death, ",
"The undiscover'd country from whose bourn ",
"No traveller returns, puzzles the will ",
"And makes us rather bear those ills we have ",
"Than fly to others that we know not of? ",
"Thus conscience does make cowards of us all; ",
"And thus the native hue of resolution ",
"Is sicklied o'er with the pale cast of thought, ",
"And enterprises of great pith and moment ",
"With this regard their currents turn awry, ",
"And lose the name of action."};
char *speech_in[NLINES];
int i;
unsigned short nlines = NLINES;
unsigned int nlines_in;
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
/* Define dimensions. Funny names are rejected, serious names work. */
for (i = 0; i < NDIMS; i++)
if (nc_def_dim(ncid, funny_name[i], len[i], &dimids[i]) != NC_EBADNAME) ERR;
for (i = 0; i < NDIMS; i++)
if (nc_def_dim(ncid, serious_name[i], len[i], &dimids[i])) ERR;
/* Write some global atts. Funny names are rejected, serious names work. */
if (nc_put_att_string(ncid, NC_GLOBAL, funny_name[0], NLINES,
(const char **)speech) != NC_EBADNAME) ERR;
if (nc_put_att_ushort(ncid, NC_GLOBAL, funny_name[1], NC_UINT, 1, &nlines) != NC_EBADNAME) ERR;
if (nc_put_att_string(ncid, NC_GLOBAL, serious_name[0], NLINES,
(const char **)speech)) ERR;
if (nc_put_att_ushort(ncid, NC_GLOBAL, serious_name[1], NC_UINT, 1, &nlines)) ERR;
/* Define variables. Funny name fails, seriousness wins the day! */
if (nc_def_var(ncid, funny_name[3], NC_INT64, NDIMS, dimids, &wind_id) != NC_EBADNAME) ERR;
if (nc_def_var(ncid, serious_name[3], NC_INT64, NDIMS, dimids, &wind_id)) ERR;
if (nc_close(ncid)) ERR;
/* Open the file and check. */
if (nc_open(FILE_NAME, NC_WRITE, &ncid)) ERR;
if (nc_inq_dimids(ncid, &ndims_in, dimids_in, 0)) ERR;
if (ndims_in != NDIMS) ERR;
for (i = 0; i < NDIMS; i++)
{
if (dimids_in[i] != i) ERR;
if (nc_inq_dimname(ncid, i, name_in)) ERR;
if (strcmp(name_in, serious_name[i])) ERR;
}
if (nc_get_att_string(ncid, NC_GLOBAL, serious_name[0], (char **)speech_in)) ERR;
for (i = 0; i < NLINES; i++)
if (strcmp(speech_in[i], speech[i])) ERR;
if (nc_get_att_uint(ncid, NC_GLOBAL, serious_name[1], &nlines_in)) ERR;
if (nlines_in != NLINES) ERR;
if (nc_free_string(NLINES, (char **)speech_in)) ERR;
if (nc_inq_varname(ncid, 0, name_in)) ERR;
if (strcmp(name_in, serious_name[3])) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("**** testing endianness...");
#define NDIMS4 1
#define DIM4_NAME "Joe"
#define VAR_NAME4 "Ed"
#define DIM4_LEN 10
{
int dimids[NDIMS4], dimids_in[NDIMS4];
int varid, varid1;
int ndims, nvars, natts, unlimdimid;
nc_type xtype_in;
char name_in[NC_MAX_NAME + 1];
int data[DIM4_LEN], data_in[DIM4_LEN];
int endian_in;
int i;
for (i = 0; i < DIM4_LEN; i++)
data[i] = i;
/* Create a netcdf-4 file with one dim and one var. */
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
if (nc_def_dim(ncid, DIM4_NAME, DIM4_LEN, &dimids[0])) ERR;
if (dimids[0] != 0) ERR;
if (nc_def_var(ncid, VAR_NAME4, NC_INT, NDIMS4, dimids, &varid)) ERR;
if (nc_def_var_endian(ncid, varid, NC_ENDIAN_BIG)) ERR;
if (varid != 0) ERR;
if (nc_put_var_int(ncid, varid, data)) ERR;
/* Check stuff. */
if (nc_inq(ncid, &ndims, &nvars, &natts, &unlimdimid)) ERR;
if (ndims != NDIMS4 || nvars != 1 || natts != 0 ||
unlimdimid != -1) ERR;
if (nc_inq_varids(ncid, &nvars, varids_in)) ERR;
if (nvars != 1) ERR;
if (varids_in[0] != 0) ERR;
/* Test some bad parameter values. */
if (nc_inq_var(ncid + MILLION, 0, name_in, &xtype_in, &ndims,
dimids_in, &natts) != NC_EBADID) ERR;
if (nc_inq_var(ncid + TEST_VAL_42, 0, name_in, &xtype_in, &ndims,
dimids_in, &natts) != NC_EBADID) ERR;
if (nc_inq_var(ncid, -TEST_VAL_42, name_in, &xtype_in, &ndims,
dimids_in, &natts) != NC_ENOTVAR) ERR;
if (nc_inq_var(ncid, 1, name_in, &xtype_in, &ndims,
dimids_in, &natts) != NC_ENOTVAR) ERR;
if (nc_inq_var(ncid, TEST_VAL_42, name_in, &xtype_in, &ndims,
dimids_in, &natts) != NC_ENOTVAR) ERR;
/* Now pass correct parameters. */
if (nc_inq_var(ncid, 0, name_in, &xtype_in, &ndims,
dimids_in, &natts)) ERR;
if (strcmp(name_in, VAR_NAME4) || xtype_in != NC_INT ||
ndims != 1 || natts != 0 || dimids_in[0] != 0) ERR;
if (nc_inq_var_endian(ncid, 0, &endian_in)) ERR;
if (endian_in != NC_ENDIAN_BIG) ERR;
/* This also works, uselessly. */
if (nc_inq_var(ncid, 0, name_in, NULL, NULL, NULL, NULL)) ERR;
if (nc_close(ncid)) ERR;
/* Open the file and check the same stuff. */
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
/* This won't work. */
if (nc_def_var(ncid, "this_wont_work", NC_BYTE, NDIMS4, dimids,
&varid1) != NC_EPERM) ERR;
if (nc_inq(ncid, &ndims, &nvars, &natts, &unlimdimid)) ERR;
if (ndims != NDIMS4 || nvars != 1 || natts != 0 ||
unlimdimid != -1) ERR;
if (nc_inq_varids(ncid, &nvars, varids_in)) ERR;
if (nvars != 1) ERR;
if (varids_in[0] != 0) ERR;
if (nc_inq_var(ncid, 0, name_in, &xtype_in, &ndims,
dimids_in, &natts)) ERR;
if (strcmp(name_in, VAR_NAME4) || xtype_in != NC_INT ||
ndims != 1 || natts != 0 || dimids_in[0] != 0) ERR;
if (nc_inq_var_endian(ncid, 0, &endian_in)) ERR;
if (endian_in != NC_ENDIAN_BIG) ERR;
if (nc_get_var_int(ncid, varid, data_in)) ERR;
for (i = 0; i < DIM4_LEN; i++)
if (data[i] != data_in[i]) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("**** testing chunking and the chunk cache...");
{
#define NDIMS5 1
#define DIM5_NAME "D5"
#define VAR_NAME5 "V5"
#define VAR_NAME5_1 "V5_1"
#define VAR_NAME5_2 "V5_2"
#define VAR_NAME5_3 "V5_3"
#define VAR_NAME5_4 "V5_4"
#define DIM5_LEN 1000
#define CACHE_SIZE 32000000
#define CACHE_NELEMS 1009
#define CACHE_PREEMPTION .75
#define CACHE_SIZE2 64000000
#define CACHE_NELEMS2 2000
#define CACHE_PREEMPTION2 .50
#define NVAR4 5
int dimids[NDIMS5], dimids_in[NDIMS5];
int varid, varid1, varid2, varid3, varid4;
int varids_in4[NVAR4];
int ndims, nvars, natts, unlimdimid;
nc_type xtype_in;
char name_in[NC_MAX_NAME + 1];
int data[DIM5_LEN], data_in[DIM5_LEN];
size_t chunksize[NDIMS5] = {5};
size_t bad_chunksize[NDIMS5] = {-5}; /* Converted to large pos number since size_t is unsigned. */
size_t large_chunksize[NDIMS5] = {(size_t)NC_MAX_INT + (size_t)1}; /* Too big for inq_var_chunking_ints(). */
size_t chunksize_in[NDIMS5];
int chunksize_int[NDIMS5];
int chunksize_int_in[NDIMS5];
int storage_in;
size_t cache_size_in, cache_nelems_in;
float cache_preemption_in;
int cache_size_int_in, cache_nelems_int_in;
int cache_preemption_int_in;
int cache_size_int_default, cache_nelems_int_default;
int cache_preemption_int_default;
int i, d;
for (i = 0; i < DIM5_LEN; i++)
data[i] = i;
/* Create a netcdf-4 file with one dim and one var. */
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
if (nc_def_dim(ncid, DIM5_NAME, DIM5_LEN, &dimids[0])) ERR;
if (dimids[0] != 0) ERR;
/* Define the variable. */
if (nc_def_var(ncid, VAR_NAME5, NC_INT, NDIMS5, dimids, &varid)) ERR;
/* These will fail due to bad parameters. */
if (nc_def_var_chunking(ncid + MILLION, varid, NC_CHUNKED,
chunksize) != NC_EBADID) ERR;
if (nc_def_var_chunking(ncid + TEST_VAL_42, varid, NC_CHUNKED,
chunksize) != NC_EBADID) ERR;
if (nc_def_var_chunking(ncid, varid + TEST_VAL_42, NC_CHUNKED,
chunksize) != NC_ENOTVAR) ERR;
if (nc_def_var_chunking(ncid, varid + 1, NC_CHUNKED,
chunksize) != NC_ENOTVAR) ERR;
if (nc_def_var_chunking(ncid, -1, NC_CHUNKED,
chunksize) != NC_ENOTVAR) ERR;
if (nc_def_var_chunking(ncid, varid, NC_CHUNKED, bad_chunksize) !=
NC_EBADCHUNK) ERR;
/* Define the chunking. */
if (nc_def_var_chunking(ncid, varid, NC_CHUNKED, chunksize)) ERR;
/* Try to set var cache with bad parameters. They will be
* rejected. */
if (nc_set_var_chunk_cache(ncid + MILLION, varid, CACHE_SIZE, CACHE_NELEMS,
CACHE_PREEMPTION) != NC_EBADID) ERR;
if (nc_set_var_chunk_cache(ncid + 1, varid, CACHE_SIZE, CACHE_NELEMS,
CACHE_PREEMPTION) != NC_EBADID) ERR;
if (nc_set_var_chunk_cache(ncid, varid + TEST_VAL_42, CACHE_SIZE, CACHE_NELEMS,
CACHE_PREEMPTION) != NC_ENOTVAR) ERR;
if (nc_set_var_chunk_cache(ncid, -TEST_VAL_42, CACHE_SIZE, CACHE_NELEMS,
CACHE_PREEMPTION) != NC_ENOTVAR) ERR;
if (nc_set_var_chunk_cache(ncid, varid + 1, CACHE_SIZE, CACHE_NELEMS,
CACHE_PREEMPTION) != NC_ENOTVAR) ERR;
if (nc_set_var_chunk_cache(ncid, varid, CACHE_SIZE, CACHE_NELEMS,
CACHE_PREEMPTION + TEST_VAL_42) != NC_EINVAL) ERR;
if (nc_set_var_chunk_cache(ncid, varid, CACHE_SIZE, CACHE_NELEMS,
CACHE_PREEMPTION - TEST_VAL_42) != NC_EINVAL) ERR;
/* Set the cache. */
if (nc_set_var_chunk_cache(ncid, varid, CACHE_SIZE, CACHE_NELEMS, CACHE_PREEMPTION)) ERR;
if (nc_put_var_int(ncid, varid, data)) ERR;
/* Check stuff. */
if (nc_inq(ncid, &ndims, &nvars, &natts, &unlimdimid)) ERR;
if (ndims != NDIMS5 || nvars != 1 || natts != 0 ||
unlimdimid != -1) ERR;
if (nc_inq_varids(ncid, &nvars, varids_in4)) ERR;
if (nvars != 1) ERR;
if (varids_in4[0] != 0) ERR;
if (nc_inq_var(ncid, 0, name_in, &xtype_in, &ndims, dimids_in, &natts)) ERR;
if (strcmp(name_in, VAR_NAME5) || xtype_in != NC_INT || ndims != 1 || natts != 0 ||
dimids_in[0] != 0) ERR;
if (nc_inq_var_chunking(ncid, 0, &storage_in, chunksize_in)) ERR;
for (d = 0; d < NDIMS5; d++)
if (chunksize[d] != chunksize_in[d]) ERR;
if (storage_in != NC_CHUNKED) ERR;
if (nc_get_var_int(ncid, varid, data_in)) ERR;
for (i = 0; i < DIM5_LEN; i++)
if (data[i] != data_in[i])
ERR_RET;
/* These will not work due to bad paramters. */
if (nc_inq_var_chunking_ints(ncid + MILLION, 0, &storage_in,
chunksize_int_in) != NC_EBADID) ERR;
if (nc_inq_var_chunking_ints(ncid + TEST_VAL_42, 0, &storage_in,
chunksize_int_in) != NC_EBADID) ERR;
if (nc_inq_var_chunking_ints(ncid, -1, &storage_in,
chunksize_int_in) != NC_ENOTVAR) ERR;
if (nc_inq_var_chunking_ints(ncid, varid + 1, &storage_in,
chunksize_int_in) != NC_ENOTVAR) ERR;
if (nc_inq_var_chunking_ints(ncid, varid + TEST_VAL_42, &storage_in,
chunksize_int_in) != NC_ENOTVAR) ERR;
/* Now check with the fortran versions of the var_chunking. */
if (nc_inq_var_chunking_ints(ncid, 0, &storage_in, chunksize_int_in)) ERR;
if (storage_in != NC_CHUNKED) ERR;
for (d = 0; d < NDIMS5; d++)
if (chunksize_int_in[d] != chunksize[d]) ERR;
for (d = 0; d < NDIMS5; d++)
chunksize_int[d] = chunksize[d] * 2;
if (nc_inq_var_chunking_ints(ncid, 0, &storage_in, NULL)) ERR;
if (storage_in != NC_CHUNKED) ERR;
/* Check that some bad parameter values are rejected properly. */
if (nc_def_var_chunking_ints(ncid + MILLION, varid, NC_CHUNKED,
chunksize_int) != NC_EBADID) ERR;
if (nc_def_var_chunking_ints(ncid + TEST_VAL_42, varid, NC_CHUNKED,
chunksize_int) != NC_EBADID) ERR;
if (nc_def_var_chunking_ints(ncid, -1, NC_CHUNKED,
chunksize_int) != NC_ENOTVAR) ERR;
if (nc_def_var_chunking_ints(ncid, varid + 1, NC_CHUNKED,
chunksize_int) != NC_ENOTVAR) ERR;
if (nc_def_var_chunking_ints(ncid, varid + TEST_VAL_42, NC_CHUNKED,
chunksize_int) != NC_ENOTVAR) ERR;
if (nc_def_var_chunking_ints(ncid, varid, NC_CHUNKED, chunksize_int) != NC_ELATEDEF) ERR;
if (nc_redef(ncid)) ERR;
if (nc_def_var(ncid, VAR_NAME5_1, NC_INT, NDIMS5, dimids, &varid1)) ERR;
if (nc_def_var(ncid, VAR_NAME5_2, NC_INT, 0, NULL, &varid2)) ERR;
if (nc_def_var(ncid, VAR_NAME5_3, NC_INT, 0, NULL, &varid3)) ERR;
if (nc_def_var(ncid, VAR_NAME5_4, NC_INT, NDIMS5, dimids, &varid4)) ERR;
if (nc_def_var_chunking(ncid, varid2, NC_CHUNKED, chunksize)) ERR;
if (nc_def_var_chunking(ncid, varid3, NC_CONTIGUOUS, NULL)) ERR;
if (nc_def_var_chunking(ncid, varid4, NC_CHUNKED, large_chunksize) != NC_EBADCHUNK) ERR;
if (nc_def_var_chunking_ints(ncid, varid2, NC_CHUNKED, chunksize_int)) ERR;
if (nc_def_var_chunking_ints(ncid, varid1, NC_CHUNKED, chunksize_int)) ERR;
if (nc_inq_var_chunking_ints(ncid, varid2, NULL, chunksize_int_in)) ERR;
if (nc_inq_var_chunking_ints(ncid, varid1, NULL, chunksize_int_in)) ERR;
for (d = 0; d < NDIMS5; d++)
if (chunksize_int_in[d] != chunksize[d] * 2) ERR;
if (nc_inq_var_chunking_ints(ncid, varid1, &storage_in, NULL)) ERR;
if (storage_in != NC_CHUNKED) ERR;
if (nc_inq_var_chunking_ints(ncid, varid2, NULL, chunksize_int_in)) ERR;
if (nc_inq_var_chunking_ints(ncid, varid3, &storage_in, NULL)) ERR;
if (storage_in != NC_CONTIGUOUS) ERR;
if (nc_inq_var_chunking_ints(ncid, varid3, &storage_in, chunksize_int_in)) ERR;
if (storage_in != NC_CONTIGUOUS) ERR;
/* Check that some bad parameter values are rejected properly. */
if (nc_get_var_chunk_cache(ncid + MILLION, varid, &cache_size_in, &cache_nelems_in,
&cache_preemption_in) != NC_EBADID) ERR;
if (nc_get_var_chunk_cache(ncid + 1, -TEST_VAL_42, &cache_size_in, &cache_nelems_in,
&cache_preemption_in) != NC_EBADID) ERR;
if (nc_get_var_chunk_cache(ncid, varid + TEST_VAL_42, &cache_size_in, &cache_nelems_in,
&cache_preemption_in) != NC_ENOTVAR) ERR;
if (nc_get_var_chunk_cache(ncid, varid4 + 1, &cache_size_in, &cache_nelems_in,
&cache_preemption_in) != NC_ENOTVAR) ERR;
if (nc_get_var_chunk_cache(ncid, -TEST_VAL_42, &cache_size_in, &cache_nelems_in,
&cache_preemption_in) != NC_ENOTVAR) ERR;
/* Get the var chunk cache settings. */
if (nc_get_var_chunk_cache(ncid, varid, &cache_size_in, &cache_nelems_in,
&cache_preemption_in)) ERR;
if (cache_size_in != CACHE_SIZE || cache_nelems_in != CACHE_NELEMS ||
cache_preemption_in != CACHE_PREEMPTION) ERR;
/* THis should also work, pointlessly. */
if (nc_get_var_chunk_cache(ncid, varid, NULL, NULL, NULL)) ERR;
/* Check the _int version of this function, used by the F77 API. */
if (nc_get_var_chunk_cache_ints(ncid, varid, &cache_size_int_in, &cache_nelems_int_in,
&cache_preemption_int_in)) ERR;
if (cache_size_int_in != CACHE_SIZE / MEGABYTE) ERR;
if (cache_nelems_int_in != CACHE_NELEMS) ERR;
if (cache_preemption_int_in != (int)(CACHE_PREEMPTION * 100)) ERR;
/* THis should also work, pointlessly. */
if (nc_get_var_chunk_cache_ints(ncid, varid, NULL, NULL, NULL)) ERR;
if (nc_close(ncid)) ERR;
/* Open the file and check the same stuff. */
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
/* Check stuff. */
if (nc_inq(ncid, &ndims, &nvars, &natts, &unlimdimid)) ERR;
if (ndims != NDIMS5 || nvars != NVAR4 || natts != 0 ||
unlimdimid != -1) ERR;
if (nc_inq_varids(ncid, &nvars, varids_in4)) ERR;
if (nvars != NVAR4) ERR;
if (varids_in4[0] != 0 || varids_in4[1] != 1) ERR;
if (nc_inq_var(ncid, 0, name_in, &xtype_in, &ndims, dimids_in, &natts)) ERR;
if (strcmp(name_in, VAR_NAME5) || xtype_in != NC_INT || ndims != 1 || natts != 0 ||
dimids_in[0] != 0) ERR;
if (nc_inq_var_chunking(ncid, 0, &storage_in, chunksize_in)) ERR;
for (d = 0; d < NDIMS5; d++)
if (chunksize[d] != chunksize_in[d]) ERR;
if (storage_in != NC_CHUNKED) ERR;
if (nc_get_var_int(ncid, varid, data_in)) ERR;
for (i = 0; i < DIM5_LEN; i++)
if (data[i] != data_in[i])
ERR_RET;
/* Use the _int function to change the var chunk cache settings. */
if (nc_set_var_chunk_cache_ints(ncid, varid, CACHE_SIZE2 / MEGABYTE, CACHE_NELEMS2,
(int)(CACHE_PREEMPTION2 * 100))) ERR;
/* These will fail due to bad ncid and group ID. */
if (nc_get_var_chunk_cache_ints(ncid + MILLION, varid, &cache_size_int_in, &cache_nelems_int_in,
&cache_preemption_int_in) != NC_EBADID) ERR;
if (nc_get_var_chunk_cache_ints(ncid + TEST_VAL_42, varid, &cache_size_int_in, &cache_nelems_int_in,
&cache_preemption_int_in) != NC_EBADID) ERR;
/* Now get the settings. */
if (nc_get_var_chunk_cache_ints(ncid, varid, &cache_size_int_in, &cache_nelems_int_in,
&cache_preemption_int_in)) ERR;
if (cache_size_int_in != CACHE_SIZE2 / MEGABYTE || cache_nelems_int_in != CACHE_NELEMS2 ||
cache_preemption_int_in != (int)(CACHE_PREEMPTION2 * 100)) ERR;
/* Passing negative values to the _int function causes them to
* be ignored and a default setting used. Set all to negative to
* get defaults.. */
if (nc_set_var_chunk_cache_ints(ncid, varid, -CACHE_SIZE / MEGABYTE, -CACHE_NELEMS2,
-(int)(CACHE_PREEMPTION2 * 100))) ERR;
if (nc_get_var_chunk_cache_ints(ncid, varid, &cache_size_int_default, &cache_nelems_int_default,
&cache_preemption_int_default)) ERR;