mirror of https://github.com/ecmwf/eccodes.git
86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
/*
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* (C) Copyright 2005- ECMWF.
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*
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* This software is licensed under the terms of the Apache Licence Version 2.0
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* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
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*
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* In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
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* virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
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*/
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#include <assert.h>
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#include <stdio.h>
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#ifndef ECCODES_ON_WINDOWS
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#include <unistd.h>
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#endif
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#include "grib_api.h"
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int main(int argc, char** argv)
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{
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int err = 0, is_missing = 0;
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double* values = NULL;
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char format[1024] = {0,};
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size_t values_len = 0, i = 0;
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long Ni = 0;
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FILE* in = NULL;
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grib_handle* h = NULL;
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if (argc > 1)
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in = fopen(argv[1], "rb");
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else {
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printf("Usage : %s filename [format]\n", argv[0]);
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exit(1);
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}
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if (!in) {
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fprintf(stderr, "ERROR: Could not open file %s\n", argv[1]);
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return 1;
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}
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if (argc > 2)
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strcpy(format, argv[2]);
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else
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strcpy(format, "%g ");
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h = grib_handle_new_from_file(0, in, &err);
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while (h) {
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if ((err = grib_get_long(h, "Ni", &Ni)) != GRIB_SUCCESS) {
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fprintf(stderr, "ERROR: %s", grib_get_error_message(err));
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return 1;
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}
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is_missing = grib_is_missing(h, "Ni", &err);
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if (is_missing) {
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fprintf(stderr, "ERROR: Key Ni is missing\n");
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return 1;
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}
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if ((err = grib_get_size(h, "values", &values_len)) != GRIB_SUCCESS) {
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fprintf(stderr, "ERROR: %s", grib_get_error_message(err));
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return 1;
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}
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values = malloc(values_len * sizeof(double));
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if ((err = grib_get_double_array(h, "values", values, &values_len)) != GRIB_SUCCESS)
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fprintf(stderr, "ERROR: %s", grib_get_error_message(err));
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for (i = 0; i < values_len; i++) {
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if (i != 0 && (i % Ni == 0)) printf("\n");
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printf(format, values[i]);
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}
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printf("\n\n");
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printf("%lu values\n", i);
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free(values);
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grib_handle_delete(h);
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h = grib_handle_new_from_file(0, in, &err);
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if (h)
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printf("************************************************************\n");
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}
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fclose(in);
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return 0;
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}
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