mirror of https://github.com/ecmwf/eccodes.git
32 lines
739 B
C++
32 lines
739 B
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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/* Return n to the power of s */
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template <typename T>
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constexpr T codes_power(long s, long n)
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{
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T divisor = 1.0;
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if (s == 0)
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return 1.0;
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if (s == 1)
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return n;
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while (s < 0) {
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divisor /= n;
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s++;
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}
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while (s > 0) {
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divisor *= n;
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s--;
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}
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return divisor;
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}
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