From 06c40b7914efefaaf85392353537a28c0ece3b47 Mon Sep 17 00:00:00 2001
From: Michael Forney <mforney@mforney.org>
Date: Wed, 24 Apr 2019 21:16:11 -0700
Subject: eval: Check that expression has integer type before checking if it's
 signed

It could be an integer constant cast to a pointer type.
---
 eval.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/eval.c b/eval.c
index 20eda9b..a244c8a 100644
--- a/eval.c
+++ b/eval.c
@@ -14,7 +14,7 @@ cast(struct expr *expr)
 	size = expr->type->size;
 	if (expr->type->prop & PROPFLOAT)
 		size |= F;
-	else if (expr->type->basic.issigned)
+	else if (expr->type->prop & PROPINT && expr->type->basic.issigned)
 		size |= S;
 	switch (size) {
 	case 1:   expr->constant.i = (uint8_t)expr->constant.i;  break;
@@ -33,7 +33,7 @@ binary(struct expr *expr, enum tokenkind op, struct expr *l, struct expr *r)
 	expr->kind = EXPRCONST;
 	if (l->type->prop & PROPFLOAT)
 		op |= F;
-	else if (l->type->basic.issigned)
+	else if (l->type->prop & PROPINT && l->type->basic.issigned)
 		op |= S;
 	switch (op) {
 	case TMUL:
-- 
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