Open System Services Library Calls Reference Manual (G06.29+, H06.08+, J06.03+)

OSS Library Calls (e - f) feclearexcept(3)
NAME
feclearexcept - Clears floating-point exception flags
LIBRARY
H-series and J-series native Guardian processes: $SYSTEM.ZDLLnnn.ZCREDLL
32-bit H-series and J-series OSS processes: /G/system/zdllnnn/zcredll
64-bit H-series and J-series OSS processes: /G/system/zdllnnn/ycredll
SYNOPSIS
#include <fenv.h>
int feclearexcept(
int excepts);
PARAMETERS
excepts Specifies the floating-point exception flags that are to be cleared.
DESCRIPTION
The feclearexcept() function clears floating-point exception flags specified by the parameter
excepts. The parameter excepts can be constructed as a bitwise OR of the exception macros:
FE_INEXACT, FE_DIVBYZERO, FE_UNDERFLOW, FE_OVERFLOW, and
FE_INVALID. FE_ALL_EXCEPT represents all the floating-point exceptions.
NOTES
This function is implemented only for the IEEE_float floating-point option. Applications using
this function cannot be compiled if the specified floating-point option is Tandem_float.
RETURN VALUES
The feclearexcept() function always returns 0 (zero), indicating all specified exceptions were
cleared.
RELATED INFORMATION
Functions: fegetexceptflag(3), feraiseexcept(3), fesetexceptflag(3), fetestexcept(3).
STANDARDS CONFORMANCE
This function conforms to the ISO/IEC 9899:1999 standard.
This function conforms to the IEEE Std 1003.1, 2004 Edition.
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