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Diffstat (limited to 'gcc/c-family/c-common.c')
| -rw-r--r-- | gcc/c-family/c-common.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/c-family/c-common.c b/gcc/c-family/c-common.c index b6545c0..d1372a4 100644 --- a/gcc/c-family/c-common.c +++ b/gcc/c-family/c-common.c @@ -4652,6 +4652,19 @@ c_common_truthvalue_conversion (location_t location, tree expr) TREE_OPERAND (expr, 0)); case COND_EXPR: + if (warn_int_in_bool_context) + { + tree val1 = fold_for_warn (TREE_OPERAND (expr, 1)); + tree val2 = fold_for_warn (TREE_OPERAND (expr, 2)); + if (TREE_CODE (val1) == INTEGER_CST + && TREE_CODE (val2) == INTEGER_CST + && !integer_zerop (val1) + && !integer_zerop (val2) + && (!integer_onep (val1) + || !integer_onep (val2))) + warning_at (EXPR_LOCATION (expr), OPT_Wint_in_bool_context, + "?: using integer constants in boolean context"); + } /* Distribute the conversion into the arms of a COND_EXPR. */ if (c_dialect_cxx ()) { |