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  1. #include <stdio.h>
  2. #include <ctype.h>
  3.  
  4. void uppercase(FILE* in_file, FILE* out_file) {
  5.     int c;
  6.     while ((c = fgetc(in_file)) != EOF) {
  7.         fputc(toupper(c), out_file);
  8.     }
  9. }
  10.  
  11. int main() {
  12.     FILE* in_file = stdin;
  13.     FILE* out_file = stdout;
  14.     uppercase(in_file, out_file);
  15.     return 0;
  16. }
Success #stdin #stdout 0s 1792KB
comments (?)
stdin
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afdsfdsfsadfsafA+fuck
stdout
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AFDSFDSFSADFSAFA+FUCK
https://ideone.com/VPMPqQ
language:
C (gcc 8.3)
created:
13 years ago
visibility:
public

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