mirror of https://github.com/ecmwf/eccodes.git
60 lines
1.7 KiB
C++
60 lines
1.7 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 <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "grib_api_internal.h"
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int main(int argc, char* argv[])
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{
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grib_handle* h = NULL;
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int err = 0;
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Assert(argc == 2);
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const char* fname = argv[1];
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FILE* f = fopen(fname, "rb");
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Assert(f);
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unsigned long flags[] = {
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GRIB_KEYS_ITERATOR_SKIP_READ_ONLY,
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GRIB_KEYS_ITERATOR_SKIP_OPTIONAL,
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GRIB_KEYS_ITERATOR_SKIP_EDITION_SPECIFIC,
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GRIB_KEYS_ITERATOR_SKIP_CODED,
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GRIB_KEYS_ITERATOR_SKIP_COMPUTED,
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GRIB_KEYS_ITERATOR_SKIP_DUPLICATES,
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GRIB_KEYS_ITERATOR_SKIP_FUNCTION
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};
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const unsigned long N = sizeof(flags)/sizeof(unsigned long);
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while ((h = grib_handle_new_from_file(0, f, &err)) != NULL) {
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for (unsigned long i=0; i<N; ++i) {
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size_t count = 0;
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grib_keys_iterator* kiter = grib_keys_iterator_new(h, flags[i], NULL);
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Assert(kiter);
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while (grib_keys_iterator_next(kiter)) {
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const char* name = grib_keys_iterator_get_name(kiter);
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Assert(name);
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Assert(strlen(name) > 0);
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++count;
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}
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grib_keys_iterator_delete(kiter);
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printf("File=%s: Flag=%lu, count=%zu\n", fname, flags[i], count);
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}
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grib_handle_delete(h);
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}
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fclose(f);
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return 0;
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}
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