feclearexcept()

Clear the specified floating-point status flags

Synopsis:

#include <fenv.h>

int feclearexcept( const int excepts );

Arguments:

excepts
A bitwise OR of the flags that you want to clear; zero or more of the following:
  • FE_ALL_EXCEPT — all the bits
  • FE_DIVBYZERO — pole error
  • FE_INEXACT — inexact result; rounding was necessary
  • FE_INVALID — domain error
  • FE_OVERFLOW — result is too large to be representable
  • FE_UNDERFLOW — result is subnormal with a loss of precision

Library:

libm

Use the -l m option to qcc to link against this library.

Description:

The feclearexcept() function attempts to clear the specified floating-point exceptions.

Returns:

0 if all indicated exceptions were cleared or excepts is 0, or a nonzero value if an error occurred.

Examples:

See fetestexcept().

Classification:

C99, POSIX 1003.1

Safety:  
Cancellation point No
Interrupt handler No
Signal handler No
Thread Yes