Defined in header <iomanip> | ||
---|---|---|
/*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
.
mask | - | bitmask of the flags to set |
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 << setiosflags(mask)
or str >> setiosflags(mask)
behaves as if the following code was executed:
str.setf(mask);
#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
sets specific format flag (public member function of std::ios_base ) |
|
clears the specified ios_base flags (function) |
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http://en.cppreference.com/w/cpp/io/manip/setiosflags