fetestexcept() — Test the floating-point status flags
Standards
Standards / Extensions | C or C++ | Dependencies |
---|---|---|
C99 |
both | z/OS V1R7 |
Format
#define _ISOC99_SOURCE
#include <fenv.h>
int fetestexcept(int excepts);
General description
fetestexcept() determines
which of a specified subset of floating-point exception flags are
currently set. excepts specifies the floating-point
status flags to be queried.
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 |
---|---|---|
fetestexcept | X |
Returned value
If successful, fetestexcept() returns the value of the bitwise OR for the floating-point exception macros corresponding to the currently set floating-point exceptions included in excepts.