libmudflap/testsuite/libmudflap.c/pass18-frag.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 int main ()
   5 {
   6 int t;
   7 char foo[3] = { 'b', 'c', 'd' };
   8 int bar[3] = {1, 2, 0};
   9 t = 1;
  10
  11 /* These tests check expression evaluation rules, such as
  12    ensuring that side-effect expression (++) get executed the
  13    right number of times; that array lookup checks nest correctly. */
  14 foo[t++] = 'a';
  15 if (foo[0] != 'b' || foo[1] != 'a' || foo[2] != 'd' || t != 2) abort ();
  16 if (bar[0] != 1 || bar[1] != 2 || bar[2] != 0) abort();
  17
  18 foo[bar[t--]] = 'e';
  19 if (foo[0] != 'e' || foo[1] != 'a' || foo[2] != 'd' || t != 1) abort ();
  20 if (bar[0] != 1 || bar[1] != 2 || bar[2] != 0) abort();
  21
  22 foo[bar[++t]--] = 'g';
  23 if (foo[0] != 'g' || foo[1] != 'a' || foo[2] != 'd' || t != 2) abort ();
  24 if (bar[0] != 1 || bar[1] != 2 || bar[2] != -1) abort();
  25
  26 return 0;
  27 }