Vc package added (version 0.6.79-dev)

[u/mrichter/AliRoot.git] / Vc / include / Vc / avx / limits.h

diff --git a/Vc/include/Vc/avx/limits.h b/Vc/include/Vc/avx/limits.h
new file mode 100644 (file)
index 0000000..80722da
--- /dev/null
+++ b/Vc/include/Vc/avx/limits.h
@@ -0,0 +1,49 @@
+/*  This file is part of the Vc library.
+
+    Copyright (C) 2009-2011 Matthias Kretz <kretz@kde.org>
+
+    Vc is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as
+    published by the Free Software Foundation, either version 3 of
+    the License, or (at your option) any later version.
+
+    Vc is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with Vc.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#ifndef VC_AVX_LIMITS_H
+#define VC_AVX_LIMITS_H
+
+#include "intrinsics.h"
+#include "types.h"
+
+namespace std
+{
+#define _VC_NUM_LIM(T, _max, _min) \
+template<> struct numeric_limits<Vc::AVX::Vector<T> > : public numeric_limits<T> \
+{ \
+    static inline INTRINSIC CONST Vc::AVX::Vector<T> max()           _VC_NOEXCEPT { return _max; } \
+    static inline INTRINSIC CONST Vc::AVX::Vector<T> min()           _VC_NOEXCEPT { return _min; } \
+    static inline INTRINSIC CONST Vc::AVX::Vector<T> lowest()        _VC_NOEXCEPT { return min(); } \
+    static inline INTRINSIC CONST Vc::AVX::Vector<T> epsilon()       _VC_NOEXCEPT { return Vc::AVX::Vector<T>::Zero(); } \
+    static inline INTRINSIC CONST Vc::AVX::Vector<T> round_error()   _VC_NOEXCEPT { return Vc::AVX::Vector<T>::Zero(); } \
+    static inline INTRINSIC CONST Vc::AVX::Vector<T> infinity()      _VC_NOEXCEPT { return Vc::AVX::Vector<T>::Zero(); } \
+    static inline INTRINSIC CONST Vc::AVX::Vector<T> quiet_NaN()     _VC_NOEXCEPT { return Vc::AVX::Vector<T>::Zero(); } \
+    static inline INTRINSIC CONST Vc::AVX::Vector<T> signaling_NaN() _VC_NOEXCEPT { return Vc::AVX::Vector<T>::Zero(); } \
+    static inline INTRINSIC CONST Vc::AVX::Vector<T> denorm_min()    _VC_NOEXCEPT { return Vc::AVX::Vector<T>::Zero(); } \
+}
+_VC_NUM_LIM(unsigned short, Vc::AVX::_mm_setallone_si128(), _mm_setzero_si128());
+_VC_NUM_LIM(         short, _mm_srli_epi16(Vc::AVX::_mm_setallone_si128(), 1), Vc::AVX::_mm_setmin_epi16());
+_VC_NUM_LIM(  unsigned int, Vc::AVX::_mm256_setallone_si256(), _mm256_setzero_si256());
+_VC_NUM_LIM(           int, Vc::AVX::_mm256_srli_epi32(Vc::AVX::_mm256_setallone_si256(), 1), Vc::AVX::_mm256_setmin_epi32());
+#undef _VC_NUM_LIM
+
+} // namespace std
+
+#endif // VC_AVX_LIMITS_H