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ios_base::fmtflags

Constants to specify the appearance of output.

namespace std {
   class ios_base {
   public:
      typedef implementation-defined-bitmask-type fmtflags;
      static const fmtflags boolalpha;
      static const fmtflags dec;
      static const fmtflags fixed;
      static const fmtflags hex;
      static const fmtflags internal;
      static const fmtflags left;
      static const fmtflags oct;
      static const fmtflags right;
      static const fmtflags scientific;
      static const fmtflags showbase;
      static const fmtflags showpoint;
      static const fmtflags showpos;
      static const fmtflags skipws;
      static const fmtflags unitbuf;
      static const fmtflags uppercase;
      static const fmtflags adjustfield;
      static const fmtflags basefield;
      static const fmtflags floatfield;
      ...
   };
}

Remarks

Supports the manipulators in ios.

The type is a bitmask type that describes an object that can store format flags. The distinct flag values (elements) are:

  • dec, to insert or extract integer values in decimal format.

  • hex, to insert or extract integer values in hexadecimal format.

  • oct, to insert or extract integer values in octal format.

  • showbase, to insert a prefix that reveals the base of a generated integer field.

  • internal, to pad to a field width as needed by inserting fill characters at a point internal to a generated numeric field. (For information on setting the field width, see .

Requirements

Header: <ios>

Namespace: std

See Also

Reference

ios_base Class

iostream Programming

iostreams Conventions