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warn on if (a = b)

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Bill Currie 2004-01-25 21:45:07 +00:00
parent 7423ee389d
commit f8ed454547
1 changed files with 5 additions and 0 deletions
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5
tools/qfcc/source/expr.c
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@ -1088,6 +1088,11 @@ convert_bool (expr_t *e, int block)
{
expr_t *b;
if (e->type == ex_expr && (e->e.expr.op == '=' || e->e.expr.op == PAS)
&& !e->paren)
warning (e,
"suggest parentheses around assignment used as truth value");
if (e->type == ex_uexpr && e->e.expr.op == '!') {
e = convert_bool (e->e.expr.e1, 0);
if (e->type == ex_error)