Sets the floating-point environment.

[Format]

#include <fenv.h>

long fesetenv(const fenv_t *f);

[Parameters]

f Pointer to the floating-point environment

[Return values]

Normal: 0

Abnormal: Nonzero

[Remarks]

For the argument of this function, specify the environment stored or saved by the fegetenv or feholdexcept function, or the environment equal to the floating-point environment macro.

Do not use this function when compiler option nofpu is selected. If used, the function returns a nonzero value, which indicates an abnormality.