rint, lrint, llrint
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| Defined in header <math.h>
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| int rintf( float arg ); |
(C99以来) | |
| int rint( double arg ); |
(C99以来) | |
| int rintl( long double arg ); |
(C99以来) | |
| long lrintf( float arg ); |
(C99以来) | |
| long lrint( double arg ); |
(C99以来) | |
| long lrintl( long double arg ); |
(C99以来) | |
| long long llrintf( float arg ); |
(C99以来) | |
| long long llrint( double arg ); |
(C99以来) | |
| long long llrintl( long double arg ); |
(C99以来) | |
浮動小数点形式の整数値に丸め浮動小数点引数
arg、現在の丸めモードを使用しています。結果はarg（すなわち、argがすでに整数値ではありませんでした）と異なる場合は、浮動小数点例外が発生しますFE_INEXACT.Original:
Rounds the floating-point argument
arg to an integer value in floating-point format, using the current rounding mode. If the result differs from arg (i.e., arg was not an integer value already), the floating-point exception FE_INEXACT is raised.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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目次 |
[編集] パラメータ
| arg | - | 浮動小数点値
Original: floating point value 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
丸め
argの整数の結果Original:
The integer result of rounding
argThe text has been machine-translated via Google Translate.
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[編集] ノート
唯一の違いnearbyintとrintrintがそれを発生させたことがないながらFE_INEXACTは、nearbyint浮動小数点の例外を発生させるかもしれないということです.
Original:
The only difference between nearbyint and rint is that rint may raise the FE_INEXACT floating-point exception, while nearbyint never raises it.
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) |
現在の丸めモードを使用して、最も近い整数 Original: nearest integer using current rounding mode The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (機能) |
| (C99) |
与えられた値よりも大きさが大きくない最も近い整数 Original: nearest integer not greater in magnitude than the given value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (機能) |
| C++ documentation for rint
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