diff options
Diffstat (limited to 'gcc-4.4.0/gcc/cp/typeck.c')
| -rw-r--r-- | gcc-4.4.0/gcc/cp/typeck.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/gcc-4.4.0/gcc/cp/typeck.c b/gcc-4.4.0/gcc/cp/typeck.c index 76d6d5d8c..ffcbe42d0 100644 --- a/gcc-4.4.0/gcc/cp/typeck.c +++ b/gcc-4.4.0/gcc/cp/typeck.c @@ -3578,6 +3578,45 @@ cp_build_binary_op (location_t location, case EQ_EXPR: case NE_EXPR: + if (TYPE_PTRMEMFUNC_P (type0) && TYPE_PTRMEMFUNC_P (type1)) + { + tree pfn0, pfn1; + pfn0 = pfn_from_ptrmemfunc (op0); + pfn1 = pfn_from_ptrmemfunc (op1); + if (TREE_CODE (pfn0) == ADDR_EXPR + && TREE_CODE (TREE_OPERAND (pfn0, 0)) == FUNCTION_DECL) + warning_at (location, + OPT_Wicf, + "Method pointer used in comparison : %qD", + TREE_OPERAND (pfn0, 0)); + if (TREE_CODE (pfn1) == ADDR_EXPR + && TREE_CODE (TREE_OPERAND (pfn1, 0)) == FUNCTION_DECL) + warning_at (location, + OPT_Wicf, + "Method pointer used in comparison : %qD", + TREE_OPERAND (pfn1, 0)); + } + else if (code0 == POINTER_TYPE && code1 == POINTER_TYPE) + { + tree tt0 = TREE_TYPE (type0); + tree tt1 = TREE_TYPE (type1); + /* FUNCTION_TYPE check is made here because this warning should not + * be printed for METHOD_TYPE which is handled above. */ + if (TREE_CODE (op0) == ADDR_EXPR + && TREE_CODE (tt0) == FUNCTION_TYPE + && TREE_CODE (TREE_OPERAND (op0, 0)) == FUNCTION_DECL) + warning_at (location, + OPT_Wicf, + "Function pointer used in comparison : %qD", + TREE_OPERAND (op0, 0)); + if (TREE_CODE (op1) == ADDR_EXPR + && TREE_CODE (tt1) == FUNCTION_TYPE + && TREE_CODE (TREE_OPERAND (op1, 0)) == FUNCTION_DECL) + warning_at (location, + OPT_Wicf, + "Function pointer used in comparison : %qD", + TREE_OPERAND (op1, 0)); + } if ((complain & tf_warning) && (FLOAT_TYPE_P (type0) || FLOAT_TYPE_P (type1))) warning (OPT_Wfloat_equal, |