rint, lrint, llrint
来自cppreference.com
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| Defined in header <math.h>
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| int rintf( float arg ); |
（C99 起） | |
| int rint( double arg ); |
（C99 起） | |
| int rintl( long double arg ); |
（C99 起） | |
| long lrintf( float arg ); |
（C99 起） | |
| long lrint( double arg ); |
（C99 起） | |
| long lrintl( long double arg ); |
（C99 起） | |
| long long llrintf( float arg ); |
（C99 起） | |
| long long llrint( double arg ); |
（C99 起） | |
| long long llrintl( long double arg ); |
（C99 起） | |
舍入浮点参数
arg一个整数值，浮点格式，使用当前的舍入模式。如果结果是不同的arg（即arg已经不是一个整数值），的浮点异常FE_INEXACT，提高.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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目录 |
[编辑] 参数
| arg | - | 浮点值
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. |
[编辑] 返回值
的整数结果四舍五入
argOriginal:
The integer result of rounding
argThe text has been machine-translated via Google Translate.
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[编辑] 注释
唯一的区别nearbyint和rint的是，rint可以提高FE_INEXACT浮点异常，而nearbyint不会提高.
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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[编辑] 为例
| 本节是不完整的 原因: no example |
[编辑] 另请参阅
| （C99） |
最接近的整数，使用当前的舍入模式 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. （函数） |
| （C99） |
最接近的整数的幅值比不大于给定值 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. （函数） |
| C++ documentation for rint
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