On Fri, 2007-07-13 at 18:44 +0100, Al Viro wrote:
> --- a/evaluate.c
> +++ b/evaluate.c
> @@ -1671,17 +1671,19 @@ static struct symbol *evaluate_postop(struct
> expression *expr)
> static struct symbol *evaluate_sign(struct expression *expr)
> {
> struct symbol *ctype = expr->unop->ctype;
> + int class = classify_type(ctype, &ctype);
> if (expr->flags && !(expr->unop->flags & Int_const_expr))
> expr->flags = 0;
> - if (is_int_type(ctype)) {
> - struct symbol *rtype = rtype = integer_promotion(ctype);
> + /* should be an arithmetic type */
> + if (!(class & TYPE_NUM))
> + return bad_expr_type(expr);
> + if (!(class & (TYPE_FLOAT|TYPE_RESTRICT))) {
> + struct symbol *rtype = integer_promotion(ctype);
> expr->unop = cast_to(expr->unop, rtype);
> ctype = rtype;
> - } else if (is_float_type(ctype) && expr->op != '~') {
> - /* no conversions needed */
> - } else if (is_restricted_type(ctype) && !restricted_unop(expr->op,
> &ctype)) {
> + } else if ((class & TYPE_FLOAT) && expr->op != '~') {
> /* no conversions needed */
> - } else if (is_fouled_type(ctype) && !restricted_unop(expr->op, &ctype))
> {
> + } else if ((class & TYPE_RESTRICT) && !restricted_unop(expr->op,
> &ctype)) {
> /* no conversions needed */
> } else {
> return bad_expr_type(expr);
Most of this seems quite reasonable and obvious. I noticed, though,
that this drops the handling for fouled types; did you do that
intentionally, and if so could you elaborate on why?
- Josh Triplett
-
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