switch (code)
{
- case PLUS_EXPR:
- /* Handle the pointer + int case. */
- if (code0 == POINTER_TYPE && code1 == INTEGER_TYPE)
- return cp_pointer_int_sum (PLUS_EXPR, op0, op1);
- else if (code1 == POINTER_TYPE && code0 == INTEGER_TYPE)
- return cp_pointer_int_sum (PLUS_EXPR, op1, op0);
- else
- common = 1;
- break;
-
case MINUS_EXPR:
/* Subtraction of two similar pointers.
We must subtract them as integers, then divide by object size. */
&& same_type_ignoring_top_level_qualifiers_p (TREE_TYPE (type0),
TREE_TYPE (type1)))
return pointer_diff (op0, op1, common_type (type0, type1));
- /* Handle pointer minus int. Just like pointer plus int. */
- else if (code0 == POINTER_TYPE && code1 == INTEGER_TYPE)
- return cp_pointer_int_sum (MINUS_EXPR, op0, op1);
- else
- common = 1;
+ /* In all other cases except pointer - int, the usual arithmetic
+ rules aply. */
+ else if (!(code0 == POINTER_TYPE && code1 == INTEGER_TYPE))
+ {
+ common = 1;
+ break;
+ }
+ /* The pointer - int case is just like pointer + int; fall
+ through. */
+ case PLUS_EXPR:
+ if ((code0 == POINTER_TYPE || code1 == POINTER_TYPE)
+ && (code0 == INTEGER_TYPE || code1 == INTEGER_TYPE))
+ {
+ tree ptr_operand;
+ tree int_operand;
+ ptr_operand = ((code0 == POINTER_TYPE) ? op0 : op1);
+ int_operand = ((code0 == INTEGER_TYPE) ? op0 : op1);
+ if (processing_template_decl)
+ {
+ result_type = TREE_TYPE (ptr_operand);
+ break;
+ }
+ return cp_pointer_int_sum (code,
+ ptr_operand,
+ int_operand);
+ }
+ common = 1;
break;
case MULT_EXPR: