fegetround() — Get the current rounding mode

Standards

Standards / Extensions C or C++ Dependencies

C99
Single UNIX Specification, Version 3
C++ TR1 C99

 both  z/OS V1R7

Format

#define _ISOC99_SOURCE
#include <fenv.h>

int fegetround(void);

General description

fegetround() gets the current rounding mode.
Note: The following table shows the viable formats for these functions. See IEEE binary floating-point for more information about IEEE Binary Floating-Point.
Function Hex IEEE
fegetround   X
Note: This function will not return or update decimal floating-point rounding mode bits. The fe_dec_getround() and fe_dec_setround() functions can be used to get and set the current rounding mode for decimal floating-point operations.

Returned value

If successful, fegetround() returns the value of the rounding mode macro representing the current rounding mode. Otherwise, returns a negative value if there is no such rounding mode macro or the current rounding mode is not determinable.

Related information

Parent topic: Library functions