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ios_base::iostate

Defines constants describing the state of a stream.

static const iostate badbit, eofbit, failbit, goodbit;

Remarks

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

  • badbit, to record a loss of integrity of the stream buffer.

  • eofbit, to record end-of-file while extracting from a stream.

  • failbit, to record a failure to extract a valid field from a stream.

In addition, a useful value is goodbit, where none of the previously mentioned bits are set.

Requirements

Header: <ios>

Namespace: std

See Also

Concepts

ios_base Class

ios_base Members

iostream Programming

iostreams Conventions