31 Input/output library [input.output]

31.5 Iostreams base classes [iostreams.base]

31.5.5 ios_base manipulators [std.ios.manip]

31.5.5.1 fmtflags manipulators [fmtflags.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& boolalpha(ios_base& str);
2
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Effects: Calls str.setf(ios_base​::​boolalpha).
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Returns: str.
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ios_base& noboolalpha(ios_base& str);
4
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Effects: Calls str.unsetf(ios_base​::​boolalpha).
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Returns: str.
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ios_base& showbase(ios_base& str);
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Effects: Calls str.setf(ios_base​::​showbase).
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Returns: str.
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ios_base& noshowbase(ios_base& str);
8
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Effects: Calls str.unsetf(ios_base​::​showbase).
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Returns: str.
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ios_base& showpoint(ios_base& str);
10
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Effects: Calls str.setf(ios_base​::​showpoint).
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Returns: str.
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ios_base& noshowpoint(ios_base& str);
12
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Effects: Calls str.unsetf(ios_base​::​showpoint).
13
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Returns: str.
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ios_base& showpos(ios_base& str);
14
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Effects: Calls str.setf(ios_base​::​showpos).
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Returns: str.
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ios_base& noshowpos(ios_base& str);
16
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Effects: Calls str.unsetf(ios_base​::​showpos).
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Returns: str.
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ios_base& skipws(ios_base& str);
18
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Effects: Calls str.setf(ios_base​::​skipws).
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Returns: str.
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ios_base& noskipws(ios_base& str);
20
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Effects: Calls str.unsetf(ios_base​::​skipws).
21
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Returns: str.
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ios_base& uppercase(ios_base& str);
22
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Effects: Calls str.setf(ios_base​::​uppercase).
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Returns: str.
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ios_base& nouppercase(ios_base& str);
24
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Effects: Calls str.unsetf(ios_base​::​uppercase).
25
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Returns: str.
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ios_base& unitbuf(ios_base& str);
26
#
Effects: Calls str.setf(ios_base​::​unitbuf).
27
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Returns: str.
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ios_base& nounitbuf(ios_base& str);
28
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Effects: Calls str.unsetf(ios_base​::​unitbuf).
29
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Returns: str.

31.5.5.2 adjustfield manipulators [adjustfield.manip]

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Each function specified in this subclause is a designated addressable function ([namespace.std]).
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ios_base& internal(ios_base& str);
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Effects: Calls str.setf(ios_base​::​internal, ios_base​::​adjustfield).
3
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Returns: str.
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ios_base& left(ios_base& str);
4
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Effects: Calls str.setf(ios_base​::​left, ios_base​::​adjustfield).
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Returns: str.
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ios_base& right(ios_base& str);
6
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Effects: Calls str.setf(ios_base​::​right, ios_base​::​adjustfield).
7
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Returns: str.

31.5.5.3 basefield manipulators [basefield.manip]

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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
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Effects: Calls str.setf(ios_base​::​dec, ios_base​::​basefield).
3
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Returns: str.270
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ios_base& hex(ios_base& str);
4
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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
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Effects: Calls str.setf(ios_base​::​oct, ios_base​::​basefield).
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Returns: str.
270)270)
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.

31.5.5.4 floatfield manipulators [floatfield.manip]

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Each function specified in this subclause is a designated addressable function ([namespace.std]).
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ios_base& fixed(ios_base& str);
2
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Effects: Calls str.setf(ios_base​::​fixed, ios_base​::​floatfield).
3
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Returns: str.
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ios_base& scientific(ios_base& str);
4
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Effects: Calls str.setf(ios_base​::​scientific, ios_base​::​floatfield).
5
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Returns: str.
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ios_base& hexfloat(ios_base& str);
6
#
Effects: Calls str.setf(ios_base​::​fixed | ios_base​::​scientific, ios_base​::​floatfield).
7
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Returns: str.
8
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[Note 1: 
ios_base​::​hex cannot be used to specify a hexadecimal floating-point format, because it is not part of ios_base​::​floatfield (Table 123).
— end note]
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ios_base& defaultfloat(ios_base& str);
9
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Effects: Calls str.unsetf(ios_base​::​floatfield).
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Returns: str.