fegetenv()

Updated: May 06, 2022

Get the current floating-point environment

Synopsis:

#include <fenv.h>

int fegetenv( fenv_t *envp );

Arguments:

envp
A pointer to a fenv_t object where the function can store the environment.

Library:

libm
The general-purpose math library.
libm-sve
(QNX Neutrino 7.1 or later) A library that optimizes the code for ARMv8.2 chips that have Scalable Vector Extension hardware.

Your system requirements will determine how you should work with these libraries:

Note: Compile your program with the -fno-builtin option to prevent the compiler from using a built-in version of the function.

Description:

The fegetenv() function gets the current floating-point environment and stores it in the object that envp points to.

Returns:

0

Classification:

C99, POSIX 1003.1

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