/* Copyright (C) 1999 Free Software Foundation, Inc. Contributed by Nathan Sidwell 20 Jan 1999 */ /* 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; }