std::resetiosflags
STD::树脂旗
Defined in header | | |
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/*unspecified*/ resetiosflags( std::ios_base::fmtflags mask | | |
在表达式中使用时out << resetiosflags(mask)或in >> resetiosflags(mask),清除流的所有格式标志。out或in由mask...
参数
mask | - | bitmask of the flags to clear |
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返回值
返回未指定类型的对象,以便在str类型的输出流的名称。std::basic_ostream<CharT, Traits>或std::basic_istream<CharT, Traits>,然后表达str << resetiosflags(mask)或str >> resetiosflags(mask)行为就像执行了以下代码:
str.setf(
std::ios_base::fmtflags
(0), mask
例
二次
#include <sstream>
#include <iostream>
#include <iomanip>
int main()
{
std::istringstream in("10 010 10 010 10 010"
int n1, n2;
in >> std::oct >> n1 >> n2;
std::cout << "Parsing \"10 010\" with std::oct gives: " << n1 << ' ' << n2 << '\n';
in >> std::dec >> n1 >> n2;
std::cout << "Parsing \"10 010\" with std::dec gives: " << n1 << ' ' << n2 << '\n';
in >> std::resetiosflags(std::ios_base::basefield) >> n1 >> n2;
std::cout << "Parsing \"10 010\" with autodetect gives: " << n1 << ' ' << n2 << '\n';
}
二次
产出:
二次
Parsing "10 010" with std::oct gives: 8 8
Parsing "10 010" with std::dec gives: 10 10
Parsing "10 010" with autodetect gives: 10 8
二次
另见
setf | sets specific format flag (public member function of std::ios_base) |
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setiosflags | sets the specified ios_base flags (function) |
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