From 3a795e6d9b45ec93a7cb402a725a72ee5f49a919 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20D=C3=A4schle?= <daniel.daeschle@gmail.com>
Date: Wed, 16 Sep 2020 14:50:41 +0200
Subject: [PATCH] gen: fixes C warnings by appending U after unsigned integer
 literals (#6384)

---
 vlib/v/gen/cgen.v | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/vlib/v/gen/cgen.v b/vlib/v/gen/cgen.v
index ab24be2c2a..801d66ba7d 100644
--- a/vlib/v/gen/cgen.v
+++ b/vlib/v/gen/cgen.v
@@ -1963,6 +1963,10 @@ fn (mut g Gen) expr(node ast.Expr) {
 				// }
 				// g.write(')(')
 				g.expr(node.expr)
+				if node.expr is ast.IntegerLiteral &&
+					node.typ in [table.u64_type, table.u32_type, table.u16_type] {
+					g.write('U')
+				}
 				g.write('))')
 			}
 		}