< cpp‎ | numeric‎ | fenv
Defined in header <cfenv>
int feupdateenv( const std::fenv_t* envp )
(since C++11)

First, remembers the currently raised floating-point exceptions, then restores the floating-point environment from the object pointed to by envp (similar to std::fesetenv), then raises the floating-point exceptions that were saved.

This function may be used to end the non-stop mode established by an earlier call to std::feholdexcept.


envp - pointer to the object of type std::fenv_t set by an earlier call to std::feholdexcept or std::fegetenv or equal to FE_DFL_ENV

Return value

0 on success, non-zero otherwise.

See also

saves the environment, clears all status flags and ignores all future errors
saves or restores the current floating point environment
default floating-point environment
(macro constant)