mirror of https://github.com/ecmwf/eccodes.git
38 lines
1.4 KiB
C++
38 lines
1.4 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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#pragma once
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#include "grib_api_internal.h"
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#include <type_traits>
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template<typename T> const char* type_to_string(T) { return "unknown"; }
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template<> inline const char* type_to_string<>(double) { return "double"; }
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template<> inline const char* type_to_string<>(float) { return "float"; }
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template <typename T>
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int grib_get_array(const grib_handle* h, const char* name, T* val, size_t* length);
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template <typename T>
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int grib_get_array_internal(const grib_handle* h, const char* name, T* val, size_t* length)
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{
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static_assert(std::is_floating_point<T>::value, "Requires floating point numbers");
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int ret = grib_get_array<T>(h, name, val, length);
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if (ret != GRIB_SUCCESS) {
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// Note: typeid(T).name() returns "f" or "d". Not very helpful
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grib_context_log(h->context, GRIB_LOG_ERROR,
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"unable to get %s as %s array (each array element being %zu bytes): %s",
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name, type_to_string<T>(*val), sizeof(T), grib_get_error_message(ret));
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}
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return ret;
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}
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