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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [Wparentheses-2.c] - Rev 713
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/* Test operation of -Wparentheses. Warnings for X<=Y<=Z should be there rather than hidden in -Wextra. */ /* Origin: Joseph Myers <jsm@polyomino.org.uk> */ /* { dg-do compile } */ /* { dg-options "-Wparentheses" } */ int foo (int); int bar (int a, int b, int c) { foo (a <= b <= c); /* { dg-warning "mathematical meaning" "correct warning" } */ foo ((a <= b) <= c); foo (a <= (b <= c)); foo (1 <= 2 <= c); /* { dg-warning "mathematical meaning" "correct warning" } */ foo ((1 <= 2) <= c); foo (1 <= (2 <= c)); foo (1 <= 2 <= 3); /* { dg-warning "mathematical meaning" "correct warning" } */ foo ((1 <= 2) <= 3); foo (1 <= (2 <= 3)); foo (a > b > c); /* { dg-warning "mathematical meaning" "correct warning" } */ foo ((a > b) > c); foo (a > (b > c)); foo (1 > 2 > c); /* { dg-warning "mathematical meaning" "correct warning" } */ foo ((1 > 2) > c); foo (1 > (2 > c)); foo (1 > 2 > 3); /* { dg-warning "mathematical meaning" "correct warning" } */ foo ((1 > 2) > 3); foo (1 > (2 > 3)); foo (a < b <= c); /* { dg-warning "mathematical meaning" "correct warning" } */ foo ((a < b) <= c); foo (a < (b <= c)); foo (1 < 2 <= c); /* { dg-warning "mathematical meaning" "correct warning" } */ foo ((1 < 2) <= c); foo (1 < (2 <= c)); foo (1 < 2 <= 3); /* { dg-warning "mathematical meaning" "correct warning" } */ foo ((1 < 2) <= 3); foo (1 < (2 <= 3)); foo (a <= b > c); /* { dg-warning "mathematical meaning" "correct warning" } */ foo ((a <= b) > c); foo (a <= (b > c)); foo (1 <= 2 > c); /* { dg-warning "mathematical meaning" "correct warning" } */ foo ((1 <= 2) > c); foo (1 <= (2 > c)); foo (1 <= 2 > 3); /* { dg-warning "mathematical meaning" "correct warning" } */ foo ((1 <= 2) > 3); foo (1 <= (2 > 3)); foo (a <= b == c); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((a <= b) == c); foo (a <= (b == c)); foo (1 <= 2 == c); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((1 <= 2) == c); foo (1 <= (2 == c)); foo (1 <= 2 == 3); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((1 <= 2) == 3); foo (1 <= (2 == 3)); foo (a != b != c); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((a != b) != c); foo (a != (b != c)); foo (1 != 2 != c); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((1 != 2) != c); foo (1 != (2 != c)); foo (1 != 2 != 3); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((1 != 2) != 3); foo (1 != (2 != 3)); foo (a < b == c); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((a < b) == c); foo (a < (b == c)); foo (a > b == c); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((a > b) == c); foo (a > (b == c)); foo (a == b < c); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((a == b) < c); foo (a == (b < c)); foo (a == b > c); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((a == b) > c); foo (a == (b > c)); foo (a == b == c); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((a == b) == c); foo (a == (b == c)); foo (1 == 2 == 3); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((1 == 2) == 3); foo (1 == (2 == 3)); foo (1 < 2 == 3); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((1 < 2) == 3); foo (1 < (2 == 3)); foo (1 > 2 == 3); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((1 > 2) == 3); foo (1 > (2 == 3)); foo (1 == 2 < 3); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((1 == 2) < 3); foo (1 == (2 < 3)); foo (1 == 2 > 3); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((1 == 2) > 3); foo (1 == (2 > 3)); foo (a < b != c); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((a < b) != c); foo (a < (b != c)); foo (a > b != c); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((a > b) != c); foo (a > (b != c)); foo (a != b < c); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((a != b) < c); foo (a != (b < c)); foo (a != b > c); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((a != b) > c); foo (a != (b > c)); foo (1 < 2 != 3); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((1 < 2) != 3); foo (1 < (2 != 3)); foo (1 > 2 != 3); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((1 > 2) != 3); foo (1 > (2 != 3)); foo (1 != 2 < 3); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((1 != 2) < 3); foo (1 != (2 < 3)); foo (1 != 2 > 3); /* { dg-warning "suggest parentheses around comparison" "correct warning" } */ foo ((1 != 2) > 3); foo (1 != (2 > 3)); }
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