piranha::math::negate_impl< T, typename > Struct Template Reference

Default functor for the implementation of piranha::math::negate(). More...

#include <piranha/math.hpp>

Public Member Functions
template<typename U , generic_enabler< U > = 0>
void	operator() (U &x) const
	Generic call operator. More...
template<typename U , integral_enabler< U > = 0>
void	operator() (U &x) const
	Call operator specialised for integral types. More...

Detailed Description

template<typename T, typename = void>
struct piranha::math::negate_impl< T, typename >

Default functor for the implementation of piranha::math::negate().

This functor should be specialised via the std::enable_if mechanism. Default implementation will assign to the input value its negation.

Definition at line 253 of file math.hpp.

Member Function Documentation

operator()() [1/2]

template<typename T , typename = void>

template<typename U , generic_enabler< U > = 0>

void piranha::math::negate_impl< T, typename >::operator() ( U &  x ) const

inline

Generic call operator.

Note

This operator is enabled only if the expression x = -x is well-formed and U is not a C++ integral type.

The body of the operator is equivalent to:

x = -x;

The other overload of this operator is specialised for C++ integral types, and it behaves identically.

Parameters

x	value to be negated.

Exceptions

unspecified

any exception resulting from the in-place negation or assignment of x.

Definition at line 282 of file math.hpp.

operator()() [2/2]

template<typename T , typename = void>

template<typename U , integral_enabler< U > = 0>

void piranha::math::negate_impl< T, typename >::operator() ( U &  x ) const

inline

Call operator specialised for integral types.

Parameters

x	the integral value that will be negated.

Definition at line 291 of file math.hpp.

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The documentation for this struct was generated from the following file:

• math.hpp