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  1. #include <stdio.h>
  2. int main(int argc, char *argv[])
  3. {
  4.     FILE *fp = fopen("thisisatest.txt", "w+");
  5.     if (!fp) {
  6.         perror(argv[0]);
  7.         return 1;
  8.     }
  9.     fputs("I'm SURE this is blocked, but...", fp);
  10.     fclose(fp);
  11.     return 0;
  12. }
Runtime error #stdin #stdout #stderr 0s 2420KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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./prog: Permission denied
https://ideone.com/H5xUWR
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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