1 //================================================================================================= 2 /*! 3 // \file blaze/util/mpl/Min.h 4 // \brief Header file for the Min_t alias template 5 // 6 // Copyright (C) 2012-2020 Klaus Iglberger - All Rights Reserved 7 // 8 // This file is part of the Blaze library. You can redistribute it and/or modify it under 9 // the terms of the New (Revised) BSD License. Redistribution and use in source and binary 10 // forms, with or without modification, are permitted provided that the following conditions 11 // are met: 12 // 13 // 1. Redistributions of source code must retain the above copyright notice, this list of 14 // conditions and the following disclaimer. 15 // 2. Redistributions in binary form must reproduce the above copyright notice, this list 16 // of conditions and the following disclaimer in the documentation and/or other materials 17 // provided with the distribution. 18 // 3. Neither the names of the Blaze development group nor the names of its contributors 19 // may be used to endorse or promote products derived from this software without specific 20 // prior written permission. 21 // 22 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 23 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 25 // SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 27 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 28 // BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 30 // ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 31 // DAMAGE. 32 */ 33 //================================================================================================= 34 35 #ifndef _BLAZE_UTIL_MPL_MIN_H_ 36 #define _BLAZE_UTIL_MPL_MIN_H_ 37 38 39 //************************************************************************************************* 40 // Includes 41 //************************************************************************************************* 42 43 #include <blaze/util/mpl/If.h> 44 #include <blaze/util/mpl/Less.h> 45 46 47 namespace blaze { 48 49 //================================================================================================= 50 // 51 // CLASS DEFINITION 52 // 53 //================================================================================================= 54 55 //************************************************************************************************* 56 /*!\brief Compile time value evaluation. 57 // \ingroup mpl 58 // 59 // The Min_t alias template selects the smaller of the two given template arguments \a T1 60 // and \a T2. In order for Min_t to be able to determine the smaller type, both arguments 61 // are required to have a nested member \a value. The result of the minimum operation can be 62 // accessed via the nested member \a value, the resulting type is available via the nested 63 // type \a ValueType. 64 65 \code 66 blaze::Min_t< Int_t<3> , Int_t<2> >::value // Results in 2 67 blaze::Min_t< Long_t<3>, Int_t<2> >::ValueType // Results in int 68 blaze::Min_t< Int_t<3> , Long_t<2> >::ValueType // Results in long 69 \endcode 70 */ 71 template< typename T1 // Type of the first compile time value 72 , typename T2 > // Type of the second compile time value 73 using Min_t = If_t< Less_t<T1,T2>::value, T1, T2 >; 74 //************************************************************************************************* 75 76 } // namespace blaze 77 78 #endif 79