From 1e98f81dca72530198e4c4fd01012d459bc28316 Mon Sep 17 00:00:00 2001
From: lemon <lsof@mailbox.org>
Date: Sun, 15 Mar 2026 12:33:44 +0100
Subject: c: default enum to unsigned int backing type

Matches GCC behavior.
---
 c/c.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'c')

diff --git a/c/c.c b/c/c.c
index 4a461b9..63c3f7f 100644
--- a/c/c.c
+++ b/c/c.c
@@ -2174,7 +2174,9 @@ buildenum(struct comp *cm, internstr name, const struct span *span, int id)
    }
 
    td.backing = 0;
-   for (int t = TYINT; t <= TYUVLONG; ++t) {
+   if (minv >= 0 && maxv <= ~0u) {
+      td.backing = TYUINT;
+   } else for (int t = TYINT; t <= TYUVLONG; ++t) {
       inttyminmax(&tymin, &tymax, t);
       if (minv >= tymin && maxv <= tymax) {
          td.backing = t;
-- 
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