std::fegetenv, std::fesetenv
From cppreference.com
| Defined in header
<cfenv>
|
||
| 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.
1) Attempts to store the status of the floating-point environment in the object pointed to by
envp.
2) Attempts to establish the floating-point environment from the object pointed to by
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)[edit] Parameters
| envp | - | pointer to the object of type std::fenv_t which holds the status of the floating-point environment |
[edit] Return value
0 on success, non-zero otherwise.
[edit] See also
| (C++11)
|
saves the environment, clears all status flags and ignores all future errors (function) |
| (C++11)
|
restores the floating-point environment and raises the previously raise exceptions (function) |
| (C++11)
|
default floating-point environment (macro constant) |