From d7c8c2544d82d550459ff28cad2b1b64cf39227b Mon Sep 17 00:00:00 2001
From: Jacek Caban <jacek@codeweavers.com>
Date: Tue, 9 Sep 2008 01:26:37 +0200
Subject: [PATCH] jscript: Added '!==' expression implementation.

---
 dlls/jscript/engine.c      | 21 ++++++++++++++++++---
 dlls/jscript/tests/lang.js |  3 +++
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/dlls/jscript/engine.c b/dlls/jscript/engine.c
index 8f66b3dac08..2a986438331 100644
--- a/dlls/jscript/engine.c
+++ b/dlls/jscript/engine.c
@@ -976,10 +976,25 @@ HRESULT not_equal_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD fl
     return E_NOTIMPL;
 }
 
-HRESULT not_equal2_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
+/* ECMA-262 3rd Edition    11.9.5 */
+HRESULT not_equal2_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
 {
-    FIXME("\n");
-    return E_NOTIMPL;
+    binary_expression_t *expr = (binary_expression_t*)_expr;
+    VARIANT rval, lval;
+    BOOL b;
+    HRESULT hres;
+
+    TRACE("\n");
+
+    hres = get_binary_expr_values(ctx, expr, ei, &rval, &lval);
+    if(FAILED(hres))
+        return hres;
+
+    hres = equal2_values(&rval, &lval, &b);
+    if(FAILED(hres))
+        return hres;
+
+    return return_bool(ret, !b);
 }
 
 HRESULT less_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
diff --git a/dlls/jscript/tests/lang.js b/dlls/jscript/tests/lang.js
index 61d108f7ea3..92bf7798e9b 100644
--- a/dlls/jscript/tests/lang.js
+++ b/dlls/jscript/tests/lang.js
@@ -32,6 +32,9 @@ ok(null === null, "null === null is false");
 ok(undefined === undefined, "undefined === undefined is false");
 ok(!(undefined === null), "!(undefined === null) is false");
 
+ok(1 !== 2, "1 !== 2 is false");
+ok(null !== undefined, "null !== undefined is false");
+
 var trueVar = true;
 ok(trueVar, "trueVar is not true");