NAME¶

std::resetiosflags - std::resetiosflags

Synopsis¶

Defined in header <iomanip>
/*unspecified*/ resetiosflags( std::ios_base::fmtflags mask );

When used in an expression out << resetiosflags(mask) or in >> resetiosflags(mask),
clears all format flags of the stream out or in as specified by the mask.

Parameters¶

mask - bitmask of the flags to clear

Return value¶

Returns an object of unspecified type such that if str is the name of a stream of
type std::basic_ostream<CharT, Traits> or std::basic_istream<CharT, Traits>, then
the expression str << resetiosflags(mask) or str >> resetiosflags(mask) behaves as
if the following code was executed:

str.setf(std::ios_base::fmtflags(0), mask);

Example¶

// Run this code

#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';
}

Output:¶

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

See also¶

setf sets specific format flag
(public member function of std::ios_base)
setiosflags sets the specified ios_base flags
(function)