`feclearexcept`

Article
10/26/2022

feclearexcept attempts to clear the floating-point exception flags specified by the argument.

Syntax

int feclearexcept(
   int excepts
);

Parameters

excepts
The exception status flags to clear.

Return value

Returns zero if excepts is zero, or if all the specified exceptions were successfully cleared. Otherwise, it returns a nonzero value.

Remarks

The feclearexcept function attempts to clear the floating point exception status flags specified by excepts. The function supports these exception macros, defined in fenv.h:

Exception macro	Description
`FE_DIVBYZERO`	A singularity or pole error occurred in an earlier floating-point operation; an infinity value was created.
`FE_INEXACT`	The function was forced to round the stored result of an earlier floating-point operation.
`FE_INVALID`	A domain error occurred in an earlier floating-point operation.
`FE_OVERFLOW`	A range error occurred; an earlier floating-point operation result was too large to be represented.
`FE_UNDERFLOW`	An earlier floating-point operation result was too small to be represented at full precision; a denormal value was created.
`FE_ALL_EXCEPT`	The bitwise OR of all supported floating-point exceptions.

The excepts argument may be zero, or the bitwise OR of one or more of the supported exception macros. The result of any other argument value is undefined.

Requirements

Function	C header	C++ header
`feclearexcept`	<fenv.h>	<cfenv>

For more compatibility information, see Compatibility.