27 Input/output library [input.output]

27.5 Iostreams base classes [iostreams.base]

27.5.3 Class ios_­base [ios.base]

27.5.3.2 State functions [fmtflags.state]

fmtflags flags() const;
Returns: The format control information for both input and output.
fmtflags flags(fmtflags fmtfl);
Ensures: fmtfl == flags().
Returns: The previous value of flags().
fmtflags setf(fmtflags fmtfl);
Effects: Sets fmtfl in flags().
Returns: The previous value of flags().
fmtflags setf(fmtflags fmtfl, fmtflags mask);
Effects: Clears mask in flags(), sets fmtfl & mask in flags().
Returns: The previous value of flags().
void unsetf(fmtflags mask);
Effects: Clears mask in flags().
streamsize precision() const;
Returns: The precision to generate on certain output conversions.
streamsize precision(streamsize prec);
Ensures: prec == precision().
Returns: The previous value of precision().
streamsize width() const;
Returns: The minimum field width (number of characters) to generate on certain output conversions.
streamsize width(streamsize wide);
Ensures: wide == width().
Returns: The previous value of width().