commit 9a7265beccfc385ed133bcd9afaff3befcb4640c
author Jacek Caban <jacek@codeweavers.com> Thu Oct 16 14:31:18 2008 -0500
committer Alexandre Julliard <julliard@winehq.org> Fri Oct 17 11:45:37 2008 +0200
tree a2b9352181fdc24af194a80bb5bdbce656e10c6f
parent f80b5f6e6624414d8787957938f065bf1a3662e7

jscript: Added Infinity value implementation.

dlls/jscript/global.c

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_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,

dlls/jscript/jscript.h

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 @@
 #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**);

dlls/jscript/tests/lang.js

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 @@
 
 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();