stringbuf::pbackfail [virtual] [protected]
int pbackfail ( int c = EOF );

Put character back.
  Puts back a character into the buffer and makes it available again as the next character. If c is EOF the character push back is automatically the same character extracted in that position, otherwise character c is written in the push back position.


Character value to be push back, or EOF.

Return Value.
  The function returns EOF in case of failure or any other value on success.

Basic template member declaration ( basic_stringbuf<charT,traits,Allocator> ):
typedef traits::int_type int_type;
int_type pbackfail ( int_type c = traits::eof() );

See also.
  stringbuf class

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