std::setiosflags

/*unspecified*/ setiosflags( std::ios_base::fmtflags mask );

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

Parameters

Return value

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

str.setf(mask);

Example

#include <iostream>
#include <iomanip>
 
int main()
{
    std::cout <<  std::resetiosflags(std::ios_base::dec) 
              <<  std::setiosflags(  std::ios_base::hex
                                   | std::ios_base::uppercase
                                   | std::ios_base::showbase) << 42 << '\n';
}

0X2A

See also