std::feupdateenv

Header: <cfenv>

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.

# Declarations

int feupdateenv( const std::fenv_t* envp )

(since C++11)

# Parameters

• 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

• feholdexcept
• fegetenvfesetenv
• FE_DFL_ENV
• C documentation