From 3e8fd245473a6e532fa4f9b42c51bd8257c15b3c Mon Sep 17 00:00:00 2001
From: Mason Remaley <MasonRemaley@users.noreply.github.com>
Date: Mon, 27 Nov 2017 21:00:05 -0500
Subject: [PATCH] Implements translation for the prefix not operator (#628)

---
 src/translate_c.cpp  |  9 +++++++--
 test/translate_c.zig | 10 ++++++++++
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/src/translate_c.cpp b/src/translate_c.cpp
index b123fcb56e..23c3ff9821 100644
--- a/src/translate_c.cpp
+++ b/src/translate_c.cpp
@@ -1875,8 +1875,13 @@ static AstNode *trans_unary_operator(Context *c, ResultUsed result_used, TransSc
                 }
             }
         case UO_Not:
-            emit_warning(c, stmt->getLocStart(), "TODO handle C translation UO_Not");
-            return nullptr;
+            {
+                Expr *op_expr = stmt->getSubExpr();
+                AstNode *sub_node = trans_expr(c, ResultUsedYes, scope, op_expr, TransRValue);
+                if (sub_node == nullptr)
+                    return nullptr;
+                return trans_create_node_prefix_op(c, PrefixOpBinNot, sub_node);
+            }
         case UO_LNot:
             emit_warning(c, stmt->getLocStart(), "TODO handle C translation UO_LNot");
             return nullptr;
diff --git a/test/translate_c.zig b/test/translate_c.zig
index 7bae341a67..198d813af1 100644
--- a/test/translate_c.zig
+++ b/test/translate_c.zig
@@ -1114,4 +1114,14 @@ pub fn addCases(cases: &tests.TranslateCContext) {
         \\    return @ptrCast(?&f32, a);
         \\}
     );
+
+    cases.add("bin not",
+        \\int foo(int x) {
+        \\    return ~x;
+        \\}
+    ,
+        \\pub fn foo(x: c_int) -> c_int {
+        \\    return ~x;
+        \\}
+    );
 }