From cppreference.com
int_typesbumpc(); (1) voidstossc(); (2) (deprecated in C++98)
(removed in C++17)Reads one character and advances the input sequence by one character.
1) If the input sequence read position is not available, returns
. Otherwise returns Traits::to_int_type(*gptr()).
2) Same as (1), but discards the result.
Parameters
(none)
Return value
1) The value of the character pointed to by the get pointer, or Traits::eof() if the read position is not available.
Example
See also
reads one character from the input sequence without advancing the sequence
(public member function)
advances the input sequence, then reads one character without advancing again
(public member function)