...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
template< typename T1 , typename T2 , typename T3 = integral_c<int,1> , ... , typename Tn = integral_c<int,1> > struct divides { typedef unspecified type; };
Returns the quotient of its arguments [1].
#include "boost/mpl/divides.hpp"
Parameter | Requirement | Description |
---|---|---|
T1, T2, .., Tn | A model of Integral Constant |
Expression | Expression type | Precondition | Semantics | Postcondition |
---|---|---|---|---|
typedef divides<t1,t2,..,tn>::type quot; | A model of Integral Constant | t2::value != 0, t3::value != 0, .., tn::value != 0 | Equivalent to typedef integral_c<typeof(t1::value / t2::value .. / tn::value), t1::value / t2::value .. / tn::value > quot; |
Amortized constant time.
typedef divides< integral_c<short,-10>, integral_c<long,3> >::type quot; BOOST_STATIC_ASSERT(quot::value == -3)); BOOST_MPL_ASSERT_IS_SAME(quot::value_type, long);
[1] The divides
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, multiplies
, modulus
, plus
, minus
, negate