Difference between revisions of "cpp/utility/functional/negate"
From cppreference.com
< cpp | utility | functional
m (Text replace - "{{eq fun cpp" to "{{eq fun") |
m (r2.7.3) (Robot: Adding de, es, fr, it, ja, pt, ru, zh) |
||
| Line 49: | Line 49: | ||
}} | }} | ||
}} | }} | ||
| + | |||
| + | [[de:cpp/utility/functional/negate]] | ||
| + | [[es:cpp/utility/functional/negate]] | ||
| + | [[fr:cpp/utility/functional/negate]] | ||
| + | [[it:cpp/utility/functional/negate]] | ||
| + | [[ja:cpp/utility/functional/negate]] | ||
| + | [[pt:cpp/utility/functional/negate]] | ||
| + | [[ru:cpp/utility/functional/negate]] | ||
| + | [[zh:cpp/utility/functional/negate]] | ||
Revision as of 12:59, 2 November 2012
Template:ddcl list begin <tr class="t-dsc-header">
<td>Defined in header
</td>
<functional>
<td></td> <td></td> </tr> <tr class="t-dcl ">
<td class="t-dcl-nopad">template< class T >
struct negate;
</td>
struct negate;
<td class="t-dcl-nopad"> </td> <td class="t-dcl-nopad"> </td> </tr> Template:ddcl list end
Function object for performing negation. Effectively calls operator- on an instance of type T.
Contents |
Member types
| Type | Definition |
result_type
|
T
|
argument_type
|
T
|
Member functions
| operator() |
returns the negation of the argument (public member function) |
std::negate::operator()
| T operator()( const T& arg ) const; |
||
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; } |
