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Yii 2.0

std::fpos::state

STD：：FPO：：State

State state() const;(1)​
void state( State st (2)​

管理文件位置状态。

1%29返回文件位置状态的值。

2%29将文件位置状态替换为st...

专门化的std::fpos在标准库中使用，State总是std::mbstate_t...

参数

st-new value for the state

返回值

1%29 fpo状态的当前值

2%29%280%29

例

二次

#include <iostream>
#include <sstream>
#include <cwchar>
 
int main()
{
    std::istringstream s("test"
    std::mbstate_t st = s.tellg().state(
 
    if(std::mbsinit(&st))
        std::cout << "The stream is in the initial shift state\n";
}

二次

产出：

二次

The stream is in the initial shift state

二次

另见

mbstate_tconversion state information necessary to iterate multibyte character strings (class)

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