Difference between revisions of "cpp/io/manip/resetiosflags"
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===Return value=== | ===Return value=== | ||
| − | Returns an object of unspecified type such that if {{tt|str}} is the name of | + | Returns an object of unspecified type such that if {{tt|str}} is the name of a stream of type {{c|std::basic_ostream<CharT, Traits>}} or {{c|std::basic_istream<CharT, Traits>}}, then the expression {{c|str << resetiosflags(mask)}} or {{c|str >> resetiosflags(mask)}} behaves as if the following code was executed: |
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===See also=== | ===See also=== | ||
{{dsc begin}} | {{dsc begin}} | ||
| − | {{dsc inc | cpp/io/ios_base/dsc setf | + | {{dsc inc | cpp/io/ios_base/dsc setf}} |
{{dsc inc | cpp/io/manip/dsc setiosflags}} | {{dsc inc | cpp/io/manip/dsc setiosflags}} | ||
{{dsc end}} | {{dsc end}} | ||
| − | + | {{langlinks|de|es|fr|it|ja|pt|ru|zh}} | |
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Revision as of 08:48, 20 November 2017
| Defined in header <iomanip>
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| /*unspecified*/ resetiosflags( std::ios_base::fmtflags mask ); |
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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.
Contents |
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
| sets specific format flag (public member function of std::ios_base)
| |
sets the specified ios_base flags (function) |
