std::signbit
From cppreference.com
Defined in header
<cmath>
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bool signbit( float arg );
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(since C++11) | |
bool signbit( double arg );
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(since C++11) | |
bool 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
true if arg
is negative, false 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) |
C documentation for signbit
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