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27 lines
532 B
C
27 lines
532 B
C
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// Copyright 2020, Collabora, Ltd.
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// SPDX-License-Identifier: BSL-1.0
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/*!
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* @file
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* @brief Wrapper header for <math.h> to ensure pi-related math constants are
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* defined.
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*
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* Use this instead of directly including <math.H> in headers and when
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* you need M_PI and its friends.
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* @author Ryan Pavlik <ryan.pavlik@collabora.com>
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*
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* @ingroup aux_math
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*/
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#pragma once
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#define _USE_MATH_DEFINES // for M_PI
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#ifdef __cplusplus
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#include <cmath>
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#else
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#include <math.h>
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#endif
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#ifndef M_1_PI
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#define M_1_PI (1. / M_PI)
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#endif
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