fegetenv, fesetenv
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| Defined in header <<fenv.h>>
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| int fegetenv( fenv_t* envp ); |
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| int fesetenv( const fenv_t* envp ); |
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envpが指すオブジェクトに、浮動小数点環境のステータスを格納しようとしますOriginal:
Attempts to store the status of the floating-point environment in the object pointed to by
envp.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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envpが指すオブジェクトから浮動小数点環境を確立しようとします。そのオブジェクトの値は、以前feholdexceptへのコールによって取得またはfegetenvまたは浮動小数点マクロ定数である必要があります。浮動小数点ステータスフラグのいずれかがenvpに設定されている場合、彼らは（実行が中断しない）（そしてfetestexceptによって検証可能である）環境で設定となっているが、対応する浮動小数点例外は発生しませんOriginal:
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 feholdexcept or 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 fetestexcept), but the corresponding floating-point exceptions are not raised (execution continues uninterrupted)The text has been machine-translated via Google Translate.
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目次 |
[編集] パラメータ
| envp | - | 浮動小数点環境のステータスを保持するタイプfenv_tのオブジェクトへのポインタ.
Original: pointer to the object of type fenv_t which holds the status of the 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. |
[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.
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[編集] 例
| This section is incomplete Reason: no example |
[編集] も参照してください
| (C99) |
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. (関数) |
| (C99) |
浮動小数点環境を復元し、以前に例外を発生させることが発生します Original: restores the floating-point environment and raises the previously raise exceptions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数) |
| (C99) |
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) |
| C++ documentation for fegetenv, fesetenv
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