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feupdatedenv

提供: cppreference.com
< c‎ | numeric‎ | fenv

Defined in header <<fenv.h>>
int feupdateenv( const fenv_t* envp );
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、envpfesetenv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 fesetenv), then raises the floating-point exceptions that were saved.
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この関数は、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 feholdexcept.
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目次

[編集] パラメータ

envp -
fenv_tまたはfeholdexceptまたは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 fenv_t set by an earlier call to feholdexcept or fegetenv or equal to FE_DFL_ENV
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[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.
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[編集]

[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
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(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
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(機能) [edit]
デフォルトの浮動小数点環境
Original:
default floating-point environment
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(マクロ定数) [edit]
C++ documentation for feupdateenv