[ Web Proxy ]
URL:
Viewing: https://ru.cppreference.com/cpp/numeric/fenv/feenv [Back]  [Original]
std::fegetenv, std::fesetenv cppreference.com
cppreference.com

std::fegetenv, std::fesetenv

cppreference.com
[]

Google. .

, . , .

( . .)

<metanoindex/>

 
C++
(C++20)
(C++20)
(C++11)
(C++20)
/
(C++11)
(C++11)
(C++11)
(C++17)
 
(C++17)
(C++20)
(C++11)
(C++11)
(C++17)
(C++17)
(C++20)
(C++20)
(C++11)
(C++23)
(C++17)
(C++17)
(C++17)
(C++17)
(C++17)
(C++17)
(C++20)
(C++23)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
 
 
<tbody> </tbody>
int fegetenv( std::fenv_t* envp )
 (1) ( C++11)
int fesetenv( const std::fenv_t* envp );
 (2) ( C++11)

1)

, envp.
:
Attempts to store the status of the floating-point environment in the object pointed to by envp.
Google.
. .

2)

, envp. std::feholdexcept std::fegetenv . envp, ( std::fetestexcept), ( )
:
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)
Google.
. .

envp
std::fenv_t
:
pointer to the object of type std::fenv_t which holds the status of the floating-point environment
Google.
. .

0 , .
:
0 on success, non-zero otherwise.
Google.
. .

.

(C++11)
 ,
() []
(C++11)
() []
(C++11)
() []
Web Proxy Viewer  |  New URL  |  Original Page