Jacek Caban : jscript: Added Infinity value implementation.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 9a7265beccfc385ed133bcd9afaff3befcb4640c
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=9a7265beccfc385ed133bcd9afaff3befcb4640c

Author: Jacek Caban <jacek at codeweavers.com>
Date:   Thu Oct 16 14:31:18 2008 -0500

jscript: Added Infinity value implementation.

---

 dlls/jscript/global.c      |   15 +++++++++++++--
 dlls/jscript/jscript.h     |   12 ++++++++++++
 dlls/jscript/tests/lang.js |    9 +++++++++
 3 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/dlls/jscript/global.c b/dlls/jscript/global.c
index 39055fa..ae9cc5b 100644
--- a/dlls/jscript/global.c
+++ b/dlls/jscript/global.c
@@ -126,8 +126,19 @@ static HRESULT JSGlobal_NaN(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAM
 static HRESULT JSGlobal_Infinity(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 {
-    FIXME("\n");
-    return E_NOTIMPL;
+    TRACE("\n");
+
+    switch(flags) {
+    case DISPATCH_PROPERTYGET:
+        num_set_inf(retv, TRUE);
+        break;
+
+    default:
+        FIXME("unimplemented flags %x\n", flags);
+        return E_NOTIMPL;
+    }
+
+    return S_OK;
 }
 
 static HRESULT JSGlobal_Array(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
diff --git a/dlls/jscript/jscript.h b/dlls/jscript/jscript.h
index 88bbb8d..59e2353 100644
--- a/dlls/jscript/jscript.h
+++ b/dlls/jscript/jscript.h
@@ -252,6 +252,18 @@ static inline void num_set_nan(VARIANT *v)
 #endif
 }
 
+static inline void num_set_inf(VARIANT *v, BOOL positive)
+{
+    V_VT(v) = VT_R8;
+#ifdef INFINITY
+    V_R8(v) = positive ? INFINITY : -INFINITY;
+#else
+    V_UI8(v) = (ULONGLONG)0x7ff00000<<32;
+    if(!positive)
+        V_R8(v) = -V_R8(v);
+#endif
+}
+
 const char *debugstr_variant(const VARIANT*);
 
 HRESULT WINAPI JScriptFactory_CreateInstance(IClassFactory*,IUnknown*,REFIID,void**);
diff --git a/dlls/jscript/tests/lang.js b/dlls/jscript/tests/lang.js
index 5d53320..bbafb6e 100644
--- a/dlls/jscript/tests/lang.js
+++ b/dlls/jscript/tests/lang.js
@@ -787,9 +787,18 @@ if (true)
 
 ok(isNaN(NaN) === true, "isNaN(NaN) !== true");
 ok(isNaN(0.5) === false, "isNaN(0.5) !== false");
+ok(isNaN(Infinity) === false, "isNaN(Infinity) !== false");
 ok(isNaN() === true, "isNaN() !== true");
 ok(isNaN(NaN, 0) === true, "isNaN(NaN, 0) !== true");
 ok(isNaN(0.5, NaN) === false, "isNaN(0.5, NaN) !== false");
 ok(isNaN(+undefined) === true, "isNaN(+undefined) !== true");
 
+ok(isFinite(0.5) === true, "isFinite(0.5) !== true");
+ok(isFinite(Infinity) === false, "isFinite(Infinity) !== fals");
+ok(isFinite(-Infinity) === false, "isFinite(Infinity) !== fals");
+ok(isFinite(NaN) === false, "isFinite(NaN) !== false");
+ok(isFinite(0.5, NaN) === true, "isFinite(0.5, NaN) !== true");
+ok(isFinite(NaN, 0.5) === false, "isFinite(NaN, 0.5) !== false");
+ok(isFinite() === false, "isFinite() !== false");
+
 reportSuccess();