std::basic_streambuf<CharT,Traits>::sgetc
| int_type sgetc(); | 
Reads one character from the input sequence.
If the input sequence read position is not available, returns underflow(). Otherwise returns Traits::to_int_type(*gptr()).
Parameters
(none).
Return value
The value of the character pointed to by the get pointer.
Example
#include <iostream>
#include <sstream>
 
int main()
{
    std::stringstream stream("Hello, world");
    std::cout << "sgetc() returned '" << (char)stream.rdbuf()->sgetc() << "'\n";
    std::cout << "peek() returned '" << (char)stream.peek() << "'\n";
    std::cout << "get() returned '" << (char)stream.get() << "'\n";
}Output:
sgetc() returned 'H' peek() returned 'H' get() returned 'H'
See also
| reads one character from the input sequence and advances the sequence (public member function) | |
| advances the input sequence, then reads one character without advancing again (public member function) | 
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