std::signbit
From cppreference.com
Defined in header <cmath>
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int signbit( float arg );
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(since C++11) | |
int signbit( double arg );
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(since C++11) | |
int signbit( long double arg );
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(since C++11) | |
Determines if the given floating point number arg is negative.
[edit] Parameters
arg | - | floating point value |
[edit] Return value
nonzero value if arg is negative, 0 otherwise
[edit] See also
absolute value of a floating point value (|x|) (function) |
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(C++11)
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copies the sign of a floating point value (function) |