feupdateenv.c\fenv\src - musl - musl - an implementation of the standard library for Linux-based systems

#include <fenv.h>
int feupdateenv(const fenv_t *envp)
{
	int ex = fetestexcept(FE_ALL_EXCEPT);
	fesetenv(envp);
	feraiseexcept(ex);
	return 0;
}