fixes #13671 [backport] (#13678)

nim-lang · Mar 18, 2020 · 5f69977 · 5f69977
1 parent 51bd442
commit 5f69977
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diff --git a/compiler/semexprs.nim b/compiler/semexprs.nim
@@ -522,7 +522,7 @@ proc changeType(c: PContext; n: PNode, newType: PType, check: bool) =
           a.add m
           changeType(m, tup[i], check)
   of nkCharLit..nkUInt64Lit:
-    if check and n.kind != nkUInt64Lit:
+    if check and n.kind != nkUInt64Lit and not sameType(n.typ, newType):
       let value = n.intVal
       if value < firstOrd(c.config, newType) or value > lastOrd(c.config, newType):
         localError(c.config, n.info, "cannot convert " & $value &

diff --git a/tests/misc/tunsignedconv.nim b/tests/misc/tunsignedconv.nim
@@ -55,3 +55,8 @@ const x0 = fun()
 echo typeof(x0)
 
 discard $x0
+
+# bug #13671
+
+const x1 = cast[uint](-1)
+discard $(x1,)