Defined in header <cfenv> | ||
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int fegetenv( std::fenv_t* envp ) | (1) | (since C++11) |
int fesetenv( const std::fenv_t* envp ); | (2) | (since C++11) |
Manages the status of the floating-point environment.
envp.envp. The value of that object must be previously obtained by a call to std::feholdexcept or std::fegetenv or be a floating-point macro constant. If any of the floating-point status flags are set in envp, they become set in the environment (and are then testable with std::fetestexcept), but the corresponding floating-point exceptions are not raised (execution continues uninterrupted)| envp | - | pointer to the object of type std::fenv_t which holds the status of the floating-point environment |
0 on success, non-zero otherwise.
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(C++11) | saves the environment, clears all status flags and ignores all future errors (function) |
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(C++11) | restores the floating-point environment and raises the previously raised exceptions (function) |
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(C++11) | default floating-point environment (macro constant) |
C documentation for fegetenv, fesetenv |
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