Difference between revisions of "cpp/utility/functional/logical not"
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< cpp | utility | functional
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Revision as of 13:19, 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 logical_not;
</td>
struct logical_not;
<td class="t-dcl-nopad"> </td> <td class="t-dcl-nopad"> </td> </tr> Template:ddcl list end
Function object for performing logical NOT (logical negation). Effectively calls operator! for type T.
Contents |
Member types
| Type | Definition |
result_type
|
bool
|
argument_type
|
T
|
Member functions
| operator() |
returns the logical NOT of the argument (public member function) |
std::logical_not::operator()
| bool operator()( const T& arg ) const; |
||
Returns the logical NOT of arg.
Parameters
| arg | - | value to compute logical NOT of |
Return value
The result of !arg.
Exceptions
(none)
Possible implementation
bool operator()(const T &arg) const { return !arg; } |
