std::setiosflags
From cppreference.com
| Defined in header <iomanip>
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| /*unspecified*/ setiosflags( std::ios_base::fmtflags mask ); |
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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
| mask | - | bitmask of the flags to set |
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
Run this code
#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'; }
Output:
0X2A
See also
| sets specific format flag (public member function of std::ios_base) | |
| clears the specified ios_base flags (function) |