#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>

int main (int argc, char *argv[] )
{ int car;
  FILE *src, *dst;
  src = fopen( argv[1], "r" );
  dst = stdout;
  if ( src == NULL ) {
    fprintf(stderr, "\nfichier introuvable!");
    src = stdin;
  }
  while ( ! feof( src) ) {
    car = fgetc( src );
    if ( car != EOF ) {
      if ( isalpha( car ) )
	car = toupper( car );
    fputc( car , dst );
    }
  }
  fclose( src );
  return 0;
}