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infnan
Langue: en
Version: 1993-06-02 (mandriva - 22/10/07)
Section: 3 (Bibliothèques de fonctions)
NAME
infnan - deal with infinite or not-a-number (NaN) resultSYNOPSIS
#include <math.h> double infnan(int error);
Link with -lm.
DESCRIPTION
The infnan() function returns a suitable value for infinity and "not-a-number" (NaN) results. The value of error can be ERANGE to represent infinity or anything else to represent NaN. errno is also set.RETURN VALUE
If error is ERANGE (Infinity), HUGE_VAL is returned.If error is -ERANGE (-Infinity), -HUGE_VAL is returned.
If error is anything else, NAN is returned.
ERRORS
- EDOM
- The value of error is "not-a-number" (NaN).
- ERANGE
- The value of error is positive or negative infinity.
CONFORMING TO
4.3BSDNOTES
This obsolete function was provided in libc4 and libc5, but is not available in glibc2.Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre