C++ streambuf - snextc


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Description

It is used to advances the current position of the controlled input sequence to the next character, and returns that next character.

Declaration

Following is the declaration for std::basic_streambuf::snextc.

int_type snextc();

Parameters

none

Return Value

It returns the character at the next position of the controlled input sequence, converted to a value of type int_type using member traits_type::to_int_type.

Exceptions

Basic guarantee − if an exception is thrown, the stream buffer is in a valid state.

Data races

It modifies the stream buffer object.

Example

In below example explains about std::basic_streambuf::snextc.

#include <iostream>     
#include <fstream>      

int main () {

   std::ifstream istr ("sample.txt");
   if (istr) {
      std::streambuf * pbuf = istr.rdbuf();
      do {
         char ch = pbuf->sgetc();
         std::cout << ch;
      } while ( pbuf->snextc() != std::streambuf::traits_type::eof() );
      istr.close();
   }
   return 0;
}
streambuf.htm
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