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#include <math.h> int __fpclassifyld(long double); |
Returns the kind of the floating point value supplied. You should use
the type generic macro fpclassify
(see section fpclassify) instead
of this function.
FP_INFINITE
, FP_NAN
, FP_NORMAL
,
FP_SUBNORMAL
, FP_ZERO
or FP_UNNORMAL
.
ANSI/ISO C | C99; not C89 |
if( __fpclassifyld(0.0L) != FP_ZERO ) { printf("Something is wrong with the implementation!\n"); } |