From 9709eadca1be7d618243499386de3b957b83f111 Mon Sep 17 00:00:00 2001
From: Jacek Caban <jacek@codeweavers.com>
Date: Tue, 21 Oct 2008 16:56:15 -0700
Subject: [PATCH] jscript: Added Math.floor implementation.

---
 dlls/jscript/math.c       | 20 ++++++++++++++++++--
 dlls/jscript/tests/api.js | 18 ++++++++++++++++++
 2 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/dlls/jscript/math.c b/dlls/jscript/math.c
index 1d37de5a531..d3d59ae22c6 100644
--- a/dlls/jscript/math.c
+++ b/dlls/jscript/math.c
@@ -204,8 +204,24 @@ static HRESULT Math_exp(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *d
 static HRESULT Math_floor(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 {
-    FIXME("\n");
-    return E_NOTIMPL;
+    VARIANT v;
+    HRESULT hres;
+
+    TRACE("\n");
+
+    if(!arg_cnt(dp)) {
+        if(retv)
+            num_set_nan(retv);
+        return S_OK;
+    }
+
+    hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v);
+    if(FAILED(hres))
+        return hres;
+
+    if(retv)
+        num_set_val(retv, floor(num_val(&v)));
+    return S_OK;
 }
 
 static HRESULT Math_log(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
diff --git a/dlls/jscript/tests/api.js b/dlls/jscript/tests/api.js
index 602b7dfd6a7..d613eb1a263 100644
--- a/dlls/jscript/tests/api.js
+++ b/dlls/jscript/tests/api.js
@@ -431,6 +431,24 @@ ok(tmp === 1, "Math.ceil(true) = " + tmp);
 tmp = Math.ceil(1.1, 3, 4);
 ok(tmp === 2, "Math.ceil(1.1, 3, 4) = " + tmp);
 
+tmp = Math.floor(0.5);
+ok(tmp === 0, "Math.floor(0.5) = " + tmp);
+
+tmp = Math.floor(-0.5);
+ok(tmp === -1, "Math.floor(-0.5) = " + tmp);
+
+tmp = Math.floor(1.1);
+ok(tmp === 1, "Math.floor(1.1) = " + tmp);
+
+tmp = Math.floor(true);
+ok(tmp === 1, "Math.floor(true) = " + tmp);
+
+tmp = Math.floor(1.1, 3, 4);
+ok(tmp === 1, "Math.floor(1.1, 3, 4) = " + tmp);
+
+tmp = Math.floor();
+ok(isNaN(tmp), "floor is not NaN");
+
 tmp = Math.abs(3);
 ok(tmp === 3, "Math.abs(3) = " + tmp);