| .. Metafunctions/Miscellaneous//max |90 |
| |
| max |
| === |
| |
| Synopsis |
| -------- |
| |
| .. parsed-literal:: |
| |
| template< |
| typename N1 |
| , typename N2 |
| > |
| struct max |
| { |
| typedef |unspecified| type; |
| }; |
| |
| |
| |
| Description |
| ----------- |
| |
| Returns the larger of its two arguments. |
| |
| |
| Header |
| ------ |
| |
| .. parsed-literal:: |
| |
| #include <boost/mpl/min_max.hpp> |
| |
| |
| Model of |
| -------- |
| |
| |Metafunction| |
| |
| |
| Parameters |
| ---------- |
| |
| +---------------+-------------------+-------------------------------------------+ |
| | Parameter | Requirement | Description | |
| +===============+===================+===========================================+ |
| | ``N1``, ``N2``| Any type | Types to compare. | |
| +---------------+-------------------+-------------------------------------------+ |
| |
| |
| Expression semantics |
| -------------------- |
| |
| For arbitrary types ``x`` and ``y``: |
| |
| |
| .. parsed-literal:: |
| |
| typedef max<x,y>::type r; |
| |
| |
| :Return type: |
| A type. |
| |
| :Precondition: |
| ``less<x,y>::value`` is a well-formed integral constant expression. |
| |
| :Semantics: |
| Equivalent to |
| |
| .. parsed-literal:: |
| |
| typedef if_< less<x,y>,y,x >::type r; |
| |
| |
| |
| Complexity |
| ---------- |
| |
| Constant time. |
| |
| |
| Example |
| ------- |
| |
| .. parsed-literal:: |
| |
| typedef fold< |
| vector_c<int,1,7,0,-2,5,-1> |
| , int_<10> |
| , max<_1,_2> |
| >::type r; |
| |
| BOOST_MPL_ASSERT(( is_same< r, int_<10> > )); |
| |
| |
| See also |
| -------- |
| |
| |Metafunctions|, |Comparison|, |min|, |less|, |max_element| |
| |
| |
| .. copyright:: Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
