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int feupdateenv( const std::fenv_t* envp )
 ( C++11)
-, , , , envp ( std::fesetenv), , .
:
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.
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- std::feholdexcept.
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This function may be used to end the non-stop mode established by an earlier call to std::feholdexcept.
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envp
std::fenv_t std::feholdexcept std::fegetenv FE_DFL_ENV
:
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
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0 , .
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0 on success, non-zero otherwise.
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