名前空間
変種
操作

std::feupdatedenv

提供: cppreference.com
< cpp‎ | numeric‎ | fenv

 
 
ニューメリックスライブラリ
一般的な数学関数
浮動小数点環境
複素数
数値配列
擬似乱数生成
コンパイル時有理数演算 (C++11)
汎用の数値演算
Original:
Generic numeric operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
iota(C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
浮動小数点環境
機能します
Original:
Functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
feclearexcept(C++11)
fetestexcept(C++11)
feraiseexcept(C++11)
fegetexceptflag
fesetexceptflag
(C++11)
(C++11)
fegetround
fesetround
(C++11)
(C++11)
fegetenv
fesetenv
(C++11)
feholdexcept(C++11)
feupdateenv(C++11)
マクロ定数
Original:
Macro constants
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
FE_ALL_EXCEPT
FE_DIVBYZERO
FE_INEXACT
FE_INVALID
FE_OVERFLOW
FE_UNDERFLOW
(C++11)
FE_DOWNWARD
FE_TONEAREST
FE_TOWARDZERO
FE_UPWARD
(C++11)
FE_DFL_ENV(C++11)
 
Defined in header <cfenv>
int feupdateenv( const std::fenv_t* envp )
(C + + 11以来)
まず、現在発生している浮動小数点例外を覚えていて、その後、envpstd::fesetenvに類似)が指すオブジェクトから浮動小数点環境を復元し、次に保存された浮動小数点例外を発生させ.
Original:
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.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
この関数は、std::feholdexceptへの以前の呼び出しによって確立されたノンストップ·モードを終了するために使用することができる.
Original:
This function may be used to end the non-stop mode established by an earlier call to std::feholdexcept.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[編集] パラメータ

envp -
std::fenv_tまたはstd::feholdexceptまたはstd::fegetenvに等しいの呼び出しによって事前に設定された型のオブジェクトへのポインタFE_DFL_ENV
Original:
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
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[編集] 値を返します

0成功した場合には、ゼロ以外のその他のとき.
Original:
0 on success, non-zero otherwise.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[編集] も参照してください

環境を保存し、すべてのステータスフラグをクリアし、今後のすべてのエラーを無視します
Original:
saves the environment, clears all status flags and ignores all future errors
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(機能) [edit]
現在の浮動小数点環境を保存したり復元します
Original:
saves or restores the current floating point environment
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(機能) [edit]
デフォルトの浮動小数点環境
Original:
default floating-point environment
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(マクロ定数) [edit]