| /* Copyright (C) 1999 Free Software Foundation, Inc. |
| Contributed by Nathan Sidwell 20 Jan 1999 <nathan@acm.org> */ |
| |
| /* check range combining boolean operations work */ |
| |
| extern void abort(); |
| |
| #define N 77 |
| |
| void func(int i) |
| { |
| /* fold-const does some clever things with range tests. Make sure |
| we get (some of) them right */ |
| |
| /* these must fail, regardless of the value of i */ |
| if ((i < 0) && (i >= 0)) |
| abort(); |
| if ((i > 0) && (i <= 0)) |
| abort(); |
| if ((i >= 0) && (i < 0)) |
| abort(); |
| if ((i <= 0) && (i > 0)) |
| abort(); |
| |
| if ((i < N) && (i >= N)) |
| abort(); |
| if ((i > N) && (i <= N)) |
| abort(); |
| if ((i >= N) && (i < N)) |
| abort(); |
| if ((i <= N) && (i > N)) |
| abort(); |
| |
| /* these must pass, regardless of the value of i */ |
| if (! ((i < 0) || (i >= 0))) |
| abort(); |
| if (! ((i > 0) || (i <= 0))) |
| abort(); |
| if (! ((i >= 0) || (i < 0))) |
| abort(); |
| if (! ((i <= 0) || (i > 0))) |
| abort(); |
| |
| if (! ((i < N) || (i >= N))) |
| abort(); |
| if (! ((i > N) || (i <= N))) |
| abort(); |
| if (! ((i >= N) || (i < N))) |
| abort(); |
| if (! ((i <= N) || (i > N))) |
| abort(); |
| |
| return; |
| } |
| |
| int main() |
| { |
| func(0); |
| func(1); |
| return 0; |
| } |