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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  argu‐
       ment  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 argu‐
       ment has a finite value.

ERRORS
       No errors are defined.

ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i)


       ATTRIBUTE TYPEATTRIBUTE VALUE _ Interface StabilityCommitted  _  Avail‐
       abilitysystem/library/math   _   MT-LevelMT-Safe  _  StandardSee  stan‐
       dards(7).


SEE ALSO
       math.h(3HEAD),  fpclassify(3M),  isinf(3M),  isnan(3M),   isnormal(3M),
       signbit(3M), attributes(7), standards(7)



Solaris 11.4                     27 Sept 2016                     isfinite(3M)
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