std::setiosflags - cppreference.com (original) (raw)
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.
[edit] Parameters
| mask | - | bitmask of the flags to set |
|---|
[edit] Return value
An object of unspecified type such that
- if out is an object of type std::basic_ostream<CharT, Traits>, the expression out << setiosflags(mask)
- has type std::basic_ostream<CharT, Traits>&
- has value out
- behaves as if it called f(out, mask)
- if in is an object of type std::basic_istream<CharT, Traits>, the expression in >> setiosflags(mask)
- has type std::basic_istream<CharT, Traits>&
- has value in
- behaves as if it called f(in, mask)
where the function f is defined as:
[edit] Example
[edit] Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior |
|---|---|---|---|
| LWG 183 | C++98 | setiosflags could only be used with streamsof type std::ostream or std::istream | usable with anycharacter stream |
[edit] See also
| | sets specific format flag (public member function of std::ios_base) [edit] | | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | | clears the specified ios_base flags (function) [edit] |