1.. Metafunctions/Miscellaneous//min |80 2 3min 4=== 5 6Synopsis 7-------- 8 9.. parsed-literal:: 10 11 template< 12 typename N1 13 , typename N2 14 > 15 struct min 16 { 17 typedef |unspecified| type; 18 }; 19 20 21 22Description 23----------- 24 25Returns the smaller of its two arguments. 26 27 28Header 29------ 30 31.. parsed-literal:: 32 33 #include <boost/mpl/min_max.hpp> 34 35 36Model of 37-------- 38 39|Metafunction| 40 41 42Parameters 43---------- 44 45+---------------+-------------------+-------------------------------------------+ 46| Parameter | Requirement | Description | 47+===============+===================+===========================================+ 48| ``N1``, ``N2``| Any type | Types to compare. | 49+---------------+-------------------+-------------------------------------------+ 50 51 52Expression semantics 53-------------------- 54 55For arbitrary types ``x`` and ``y``: 56 57 58.. parsed-literal:: 59 60 typedef min<x,y>::type r; 61 62 63:Return type: 64 A type. 65 66:Precondition: 67 ``less<x,y>::value`` is a well-formed integral constant expression. 68 69:Semantics: 70 Equivalent to 71 72 .. parsed-literal:: 73 74 typedef if_< less<x,y>,x,y >::type r; 75 76 77 78Complexity 79---------- 80 81Constant time. 82 83 84Example 85------- 86 87.. parsed-literal:: 88 89 typedef fold< 90 vector_c<int,1,7,0,-2,5,-1> 91 , int_<-10> 92 , min<_1,_2> 93 >::type r; 94 95 BOOST_MPL_ASSERT(( is_same< r, int_<-10> > )); 96 97 98See also 99-------- 100 101|Metafunctions|, |Comparison|, |max|, |less|, |min_element| 102 103 104.. copyright:: Copyright � 2001-2009 Aleksey Gurtovoy and David Abrahams 105 Distributed under the Boost Software License, Version 1.0. (See accompanying 106 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 107