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signbit

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Revision as of 15:29, 1 July 2013 by P12bot (Talk | contribs)

 
 
 
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signbit
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Macro constants
 
Defined in header <math.h>
#define signbit(arg) /* implementation defined */
(since C99)

Determines if the given floating point number arg is negative. The macro returns an integral value.

Parameters

arg - floating point value

Return value

Nonzero integral value if arg is negative, 0 otherwise

See also

(C99)(C99)
computes absolute value of a floating-point value (|x|)
(function) [edit]
produces a value with the magnitude of a given value and the sign of another given value
(function) [edit]
C++ documentation for signbit