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Front Page / Metafunctions / Miscellaneous / max

max

Synopsis

template<
      typename N1
    , typename N2
    >
struct max
{
    typedef unspecified type;
};

Description

Returns the larger of its two arguments.

Header

#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:

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

typedef if_< less<x,y>,y,x >::type r;

Complexity

Constant time.

Example

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