27 Input/output library [input.output]

27.5 Iostreams base classes [iostreams.base]

27.5.6 ios_­base manipulators [std.ios.manip]

27.5.6.3 basefield manipulators [basefield.manip]

1
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Each function specified in this subclause is a designated addressable function ([namespace.std]).
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ios_base& dec(ios_base& str);
2
#
Effects: Calls str.setf(ios_­base​::​dec, ios_­base​::​basefield).
3
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Returns: str300.
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ios_base& hex(ios_base& str);
4
#
Effects: Calls str.setf(ios_­base​::​hex, ios_­base​::​basefield).
5
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Returns: str.
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ios_base& oct(ios_base& str);
6
#
Effects: Calls str.setf(ios_­base​::​oct, ios_­base​::​basefield).
7
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Returns: str.
300)
The function signature dec(ios_­base&) can be called by the function signature basic_­ostream& stream​::​operator<<(ios_­base& (*)(ios_­base&)) to permit expressions of the form cout << dec to change the format flags stored in cout.