1 #include <assert.h>
2 #include <stdio.h>
3 
main(int argc,char * argv[])4 int main(int argc, char* argv[]) {
5   assert(argc == 2);
6   FILE *f = fopen(argv[1], "w");
7   const char msg[] = "int main(void) {return 0;}\n";
8   size_t w = fwrite(msg, 1, sizeof(msg) - 1, f);
9   assert(w == sizeof(msg) - 1);
10   int r = fclose(f);
11   assert(r == 0);
12   return 0;
13 }
14