diff options
| -rw-r--r-- | gcc/c-common.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/c-common.c b/gcc/c-common.c index 50aa60e..33804c4 100644 --- a/gcc/c-common.c +++ b/gcc/c-common.c @@ -901,6 +901,11 @@ truthvalue_conversion (expr) fold (build1 (NOP_EXPR, TREE_TYPE (TREE_OPERAND (expr, 0)), TREE_OPERAND (expr, 1))), 1); + + case MODIFY_EXPR: + if (warn_parentheses && C_EXP_ORIGINAL_CODE (expr) == MODIFY_EXPR) + warning ("suggest parentheses around assignment used as truth value"); + break; } return build_binary_op (NE_EXPR, expr, integer_zero_node, 1); |