C in a Nutshell

Name

fesetenv

Synopsis

Sets the floating-point environment to a previously saved state

#include <fenv.h>
intfesetenv( const fenv_t *envp );

The fesetenv() function reinstates the floating-point environment from an object obtained by a prior call to fegetenv() or feholdexcept(), or a macro such as FE_DFL_ENV, which is defined as a pointer to an object of type fenv_t representing the default floating-point environment. Although a call to fesetenv() may result in floating-point exception flags being set, the function does not raise the corresponding exceptions. The function returns 0 if successful; a nonzero return value indicates that an error occurred.

Example

See the example for fegetenv() in this chapter.

See Also

fegetenv(), feholdexcept(), fegetexceptflag(), fesetexceptflag(), feupdateenv(), feclearexcept(), feraisexcept(), fetestexcept()