fork download
copy 
  1. #include <iostream>
  2. #include <sstream>
  3. #include <string>
  4.  
  5. int main ()
  6. {
  7.     std::stringstream ss;
  8.     ss << 55;
  9.  
  10.     const char* c1 = ss.str().c_str(); // *c1 = \0
  11. 	std::cout << "c1: " << c1 << std::endl;
  12.     // looks to be doing the same, but in stages
  13.     std::string s = ss.str();
  14.     const char* c2 = s.c_str(); // *c2 = "55"
  15.     std::cout << "c2: " << c2 << std::endl;
  16. }
Success #stdin #stdout 0s 3428KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
c1: 55
c2: 55
https://ideone.com/QgL1HI
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!