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  1. #include <iostream>
  2. #include <cstdio>
  3. #include <cstring>
  4. #include <cerrno>
  5.  
  6. int main() {
  7.     FILE* f = fopen("/SomeCrapFile.txt", "w");
  8.     if (!f) {
  9.         std::cout << "File didn't open because " << strerror(errno) << std::endl;
  10.     } else {
  11.         std::cout << "Worked?" << std::endl;
  12.     }
  13.     return 0;
  14. }
Success #stdin #stdout 0s 3028KB
comments (?)
stdin 
Standard input is empty
stdout 
File didn't open because Permission denied
https://ideone.com/hVLgc4
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
secret

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