Vc/scalar/operators.h

0001 /*  This file is part of the Vc library. {{{
0002 Copyright © 2015 Matthias Kretz <kretz@kde.org>
0003
0004 Redistribution and use in source and binary forms, with or without
0005 modification, are permitted provided that the following conditions are met:
0006     * Redistributions of source code must retain the above copyright
0007       notice, this list of conditions and the following disclaimer.
0008     * Redistributions in binary form must reproduce the above copyright
0009       notice, this list of conditions and the following disclaimer in the
0010       documentation and/or other materials provided with the distribution.
0011     * Neither the names of contributing organizations nor the
0012       names of its contributors may be used to endorse or promote products
0013       derived from this software without specific prior written permission.
0014
0015 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
0016 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
0017 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
0018 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
0019 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
0020 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
0021 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
0022 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
0023 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
0024 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
0025
0026 }}}*/
0027
0028 #ifndef VC_SCALAR_OPERATORS_H_
0029 #define VC_SCALAR_OPERATORS_H_
0030
0031 #include "macros.h"
0032
0033 namespace Vc_VERSIONED_NAMESPACE
0034 {
0035 namespace Detail
0036 {
0037 // compare operators {{{1
0038 #define Vc_OP(op_)                                                                       \
0039     template <typename T>                                                                \
0040     Vc_INTRINSIC Scalar::Mask<T> operator op_(Scalar::Vector<T> a, Scalar::Vector<T> b)  \
0041     {                                                                                    \
0042         return Scalar::Mask<T>(a.data() op_ b.data());                                   \
0043     }
0044 Vc_ALL_COMPARES(Vc_OP);
0045 #undef Vc_OP
0046
0047 // bitwise operators {{{1
0048 #define Vc_OP(symbol)                                                                    \
0049     template <typename T>                                                                \
0050     Vc_INTRINSIC enable_if<std::is_integral<T>::value, Scalar::Vector<T>>                \
0051     operator symbol(Scalar::Vector<T> a, Scalar::Vector<T> b)                            \
0052     {                                                                                    \
0053         return a.data() symbol b.data();                                                 \
0054     }                                                                                    \
0055     template <typename T>                                                                \
0056     Vc_INTRINSIC enable_if<std::is_floating_point<T>::value, Scalar::Vector<T>>          \
0057     operator symbol(Scalar::Vector<T> &lhs, Scalar::Vector<T> rhs)                       \
0058     {                                                                                    \
0059         using uinta =                                                                    \
0060             MayAlias<typename std::conditional<sizeof(T) == sizeof(int), unsigned int,   \
0061                                                unsigned long long>::type>;               \
0062         uinta *left = reinterpret_cast<uinta *>(&lhs.data());                            \
0063         const uinta *right = reinterpret_cast<const uinta *>(&rhs.data());               \
0064         *left symbol## = *right;                                                         \
0065         return lhs;                                                                      \
0066     }
0067 Vc_ALL_BINARY(Vc_OP);
0068 #undef Vc_OP
0069
0070 // arithmetic operators {{{1
0071 template <typename T>
0072 Vc_INTRINSIC Scalar::Vector<T> operator+(Scalar::Vector<T> a, Scalar::Vector<T> b)
0073 {
0074     return a.data() + b.data();
0075 }
0076 template <typename T>
0077 Vc_INTRINSIC Scalar::Vector<T> operator-(Scalar::Vector<T> a, Scalar::Vector<T> b)
0078 {
0079     return a.data() - b.data();
0080 }
0081 template <typename T>
0082 Vc_INTRINSIC Scalar::Vector<T> operator*(Scalar::Vector<T> a, Scalar::Vector<T> b)
0083 {
0084     return a.data() * b.data();
0085 }
0086 template <typename T>
0087 Vc_INTRINSIC Scalar::Vector<T> operator/(Scalar::Vector<T> a, Scalar::Vector<T> b)
0088 {
0089     return a.data() / b.data();
0090 }
0091 template <typename T>
0092 Vc_INTRINSIC Scalar::Vector<T> operator%(Scalar::Vector<T> a, Scalar::Vector<T> b)
0093 {
0094     return a.data() % b.data();
0095 }
0096 // }}}1
0097 }  // namespace Detail
0098 }  // namespace Vc
0099
0100 #endif  // VC_SCALAR_OPERATORS_H_
0101
0102 // vim: foldmethod=marker