mirror of
https://github.com/matrix-construct/construct
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49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
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// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2022 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_MATH_DIFF_H
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namespace ircd::math
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{
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template<class T>
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typename std::enable_if<!simd::is<T>(), T>::type
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diff(const T, const T);
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template<class T>
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typename std::enable_if<simd::is<T>(), T>::type
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diff(const T, const T);
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}
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namespace ircd
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{
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using math::diff;
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}
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template<class T>
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inline typename std::enable_if<ircd::simd::is<T>(), T>::type
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ircd::math::diff(const T a, const T b)
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{
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T r;
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for(uint i(0); i < simd::lanes<T>(); ++i)
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r[i] = diff(a[i], b[i]);
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return r;
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}
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template<class T>
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inline typename std::enable_if<!ircd::simd::is<T>(), T>::type
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ircd::math::diff(const T a, const T b)
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{
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return a > b?
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a - b:
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b - a;
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}
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