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isinf(3m) [opensolaris man page]

isinf(3M)						  Mathematical Library Functions						 isinf(3M)

NAME
isinf - test for infinity SYNOPSIS
c99 [ flag... ] file... -lm [ library... ] #include <math.h> int isinf(real-floating x); DESCRIPTION
The isinf() macro determines whether its argument value is an infinity (positive or negative). First, an argument represented in a format wider than its semantic type is converted to its semantic type. Then determination is based on the type of the argument. RETURN VALUES
The isinf() macro returns a non-zero value if and only if its argument has an infinite value. ERRORS
No errors are defined. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
fpclassify(3M), isfinite(3M), isnan(3M), isnormal(3M), math.h(3HEAD), signbit(3M), attributes(5), standards(5) SunOS 5.11 17 Nov 2008 isinf(3M)

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isfinite(3M)						  Mathematical Library Functions					      isfinite(3M)

NAME
isfinite - test for finite value SYNOPSIS
c99 [ flag... ] file... -lm [ library... ] #include <math.h> int isfinite(real-floating x); DESCRIPTION
The isfinite() macro determines whether its argument has a finite value (zero, subnormal, or normal, and not infinite or NaN). First, an argument represented in a format wider than its semantic type is converted to its semantic type. Then determination is based on the type of the argument. RETURN VALUES
The isfinite() macro returns a non-zero value if and only if its argument has a finite value. ERRORS
No errors are defined. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
fpclassify(3M), isinf(3M), isnan(3M), isnormal(3M), math.h(3HEAD), signbit(3M), attributes(5), standards(5) SunOS 5.11 12 Jul 2006 isfinite(3M)

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