1const char *__attribute__((noinline)) 2foo (const char *p) 3{ 4 const char *end; 5 int len = 1; 6 for (;;) 7 { 8 int c = *p; 9 c = (c >= 'a' && c <= 'z' ? c - 'a' + 'A' : c); 10 if (c == 'B') 11 end = p; 12 else if (c == 'A') 13 { 14 end = p; 15 do 16 p++; 17 while (*p == '+'); 18 } 19 else 20 break; 21 p++; 22 len++; 23 } 24 if (len > 2 && *p == ':') 25 p = end; 26 return p; 27} 28 29int 30main (void) 31{ 32 const char *input = "Bbb:"; 33 return foo (input) != input + 2; 34} 35