Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
![[Home]](../mpl_logo.jpg){kind=logo}
greater
template<
typename T1
, typename T2
>
struct greater
{
typedef unspecified type;
};
Returns true_ if T1::value > T2::value and false_ otherwise [1].
#include "boost/mpl/greater.hpp"
| Parameter | Requirement | Description |
|---|---|---|
T1, T2 | A model of Integral Constant |
| Expression | Expression type | Precondition | Semantics | Postcondition |
|---|---|---|---|---|
typedef greater<t1,t2>::type c; | A model of bool Integral Constant | Equivalent to typedef bool_<(t1::value > t2::value)> c; |
Amortized constant time.
typedef list_c<int,1,2,3,5,7,12,19,31> fibonacci; typedef find_if< fibonacci, greater<_1,int_<10> > >::type iter; BOOST_STATIC_ASSERT(iter::type::value == 12));
[1] The greater metafunction can be (and is expected to be) specialized by user to work on user-defined types that do not satisfy the Integral Constant requirements. The requirements listed here are the ones imposed by the default implementation.
Metafunctions, greater_equal, less, less_equal, equal_to, not_equal_to