std::negate
From cppreference.com
< cpp | utility | functional
| Defined in header <functional>
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| template< class T > struct negate; |
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Function object for performing negation. Effectively calls operator- on type T.
Contents |
[edit] Member types
| Type | Definition |
| result_type | T |
| argument_type | T |
[edit] Member functions
| operator() |
returns the negation of the argument (public member function) |
std::negate::operator()
| T operator()( const T& arg ) const; |
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Returns the negation of arg.
Parameters
| arg | - | value to compute negation of |
Return value
The result of -arg.
Exceptions
(none)
Possible implementation
T operator()(const T &arg) const { return -arg; } |
