Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/warn/Wparentheses-1.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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// Test operation of -Wparentheses. Warnings for assignments used as // truth-values. Essentially the same as gcc.dg/Wparentheses-3.c. // Origin: Joseph Myers <jsm@polyomino.org.uk> // { dg-do compile } // { dg-options "-Wparentheses" } int foo (int); int a, b, c; bool d; void bar (void) { if (a = b) // { dg-warning "assignment" "correct warning" } foo (0); if ((a = b)) foo (1); if (a = a) // { dg-warning "assignment" "correct warning" } foo (2); if ((a = a)) foo (3); if (b = c) // { dg-warning "assignment" "correct warning" } foo (4); else foo (5); if ((b = c)) foo (6); else foo (7); if (b = b) // { dg-warning "assignment" "correct warning" } foo (8); else foo (9); if ((b = b)) foo (10); else foo (11); while (c = b) // { dg-warning "assignment" "correct warning" } foo (12); while ((c = b)) foo (13); while (c = c) // { dg-warning "assignment" "correct warning" } foo (14); while ((c = c)) foo (15); do foo (16); while (a = b); // { dg-warning "assignment" "correct warning" } do foo (17); while ((a = b)); do foo (18); while (a = a); // { dg-warning "assignment" "correct warning" } do foo (19); while ((a = a)); for (;c = b;) // { dg-warning "assignment" "correct warning" } foo (20); for (;(c = b);) foo (21); for (;c = c;) // { dg-warning "assignment" "correct warning" } foo (22); for (;(c = c);) foo (23); d = a = b; // { dg-warning "assignment" "correct warning" } foo (24); d = (a = b); foo (25); d = a = a; // { dg-warning "assignment" "correct warning" } foo (26); d = (a = a); foo (27); }