std::signbit
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                    | Defined in header  <cmath> | ||
| bool signbit( float arg ); | (since C++11) | |
| bool signbit( double arg ); | (since C++11) | |
| bool signbit( long double arg ); | (since C++11) | |
Determines if the given floating point number arg is negative.
[edit] Parameters
| arg | - | floating point value | 
[edit] Return value
true if arg is negative, false otherwise
[edit] See also
| absolute value of a floating point value (|x|) (function) | |
| (C++11) | copies the sign of a floating point value (function) | 
| C documentation for signbit | |


