30 Input/output library [input.output]

30.5 Iostreams base classes [iostreams.base]

30.5.6 ios_­base manipulators [std.ios.manip]

30.5.6.4 floatfield manipulators [floatfield.manip]

ios_base& fixed(ios_base& str);
1
#
Effects: Calls str.setf(ios_­base​::​fixed, ios_­base​::​floatfield).
2
#
Returns: str.
ios_base& scientific(ios_base& str);
3
#
Effects: Calls str.setf(ios_­base​::​scientific, ios_­base​::​floatfield).
4
#
Returns: str.
ios_base& hexfloat(ios_base& str);
5
#
Effects: Calls str.setf(ios_­base​::​fixed | ios_­base​::​scientific, ios_­base​::​floatfield).
6
#
Returns: str.
7
#
[ Note
:
The more obvious use of ios_­base​::​hex to specify hexadecimal floating-point format would change the meaning of existing well defined programs.
C++ 2003 gives no meaning to the combination of fixed and scientific.
— end note
 ]
ios_base& defaultfloat(ios_base& str);
8
#
Effects: Calls str.unsetf(ios_­base​::​floatfield).
9
#
Returns: str.