...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Front Page / Metafunctions / Arithmetic Operations / modulus |
Returns the modulus of its arguments.
#include <boost/mpl/modulus.hpp> #include <boost/mpl/arithmetic.hpp>
Parameter | Requirement | Description |
---|---|---|
T1, T2 | Integral Constant | Operation's arguments. |
[Note: The requirements listed in this specification are the ones imposed by the default implementation. See Numeric Metafunction concept for the details on how to provide an implementation for a user-defined numeric type that does not satisfy the Integral Constant requirements. — end note]
For any Integral Constants c1 and c2:
typedef modulus<c1,c2>::type r;
Return type: | Integral Constant. |
---|---|
Precondition: | c2::value != 0 |
Semantics: | Equivalent to typedef integral_c< typeof(c1::value % c2::value) , ( c1::value % c2::value ) > r; |
typedef modulus<c1,c2> r;
Return type: | Integral Constant. |
---|---|
Precondition: | c2::value != 0 |
Semantics: | Equivalent to struct r : modulus<c1,c2>::type {}; |
Amortized constant time.
typedef modulus< int_<10>, long_<3> >::type r; BOOST_MPL_ASSERT_RELATION( r::value, ==, 1 ); BOOST_MPL_ASSERT(( is_same< r::value_type, long > ));