| 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.
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
| (C++11) | saves the environment, clears all status flags and ignores all future errors (function) |
| (C++11) | saves or restores the current floating point environment (function) |
| (C++11) | default floating-point environment (macro constant) |
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