std::strstreambuf:: pbackfail
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protected
:
virtual int_type pbackfail ( int_type c = EOF ) ; |
(deprecated in C++98)
(removed in C++26) |
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This protected virtual function is called by the public functions basic_streambuf::sungetc and basic_streambuf::sputbackc (which, in turn, are called by basic_istream::unget and basic_istream::putback ).
pbackfail()
is called with no arguments or with
EOF
as the argument)
strstreambuf
has no external character source to re-read).
pbackfail()
is called with the character that needs to be put back), in which case
Parameters
| c | - | the character to put back, or Traits :: eof ( ) to indicate that backing up of the get area is requested |
Return value
c on success except if c was EOF , in which case unspecified value other than EOF is returned.
EOF on failure.
Example
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This section is incomplete
Reason: no example |
See also
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[virtual]
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puts a character back into the input sequence, possibly modifying the input sequence
(virtual protected member function of
std::basic_streambuf<CharT,Traits>
)
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moves the next pointer in the input sequence back by one
(public member function of
std::basic_streambuf<CharT,Traits>
)
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puts one character back in the input sequence
(public member function of
std::basic_streambuf<CharT,Traits>
)
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unextracts a character
(public member function of
std::basic_istream<CharT,Traits>
)
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puts a character into input stream
(public member function of
std::basic_istream<CharT,Traits>
)
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