jscript: Added Math_sin implementation.

dlls/jscript/math.c

@@ -501,8 +501,22 @@ static HRESULT Math_round(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS
 static HRESULT Math_sin(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, sin(num_val(&v)));
+    return S_OK;
 }
 
 static HRESULT Math_sqrt(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,

dlls/jscript/tests/api.js

@@ -818,6 +818,36 @@ ok(tmp === Infinity, "Math.log(Infinity) = " + tmp);
 tmp = Math.log(-Infinity);
 ok(isNaN(tmp), "Math.log(-Infinity) is not NaN");
 
+tmp = Math.sin(0);
+ok(tmp === 0, "Math.sin(0) = " + tmp);
+
+tmp = Math.sin(Math.PI/2);
+ok(tmp === 1, "Math.sin(Math.PI/2) = " + tmp);
+
+tmp = Math.sin(-Math.PI/2);
+ok(tmp === -1, "Math.sin(-Math.PI/2) = " + tmp);
+
+tmp = Math.sin(Math.PI/3, 2);
+ok(Math.floor(tmp*100) === 86, "Math.sin(Math.PI/3, 2) = " + tmp);
+
+tmp = Math.sin(true);
+ok(Math.floor(tmp*100) === 84, "Math.sin(true) = " + tmp);
+
+tmp = Math.sin(false);
+ok(tmp === 0, "Math.sin(false) = " + tmp);
+
+tmp = Math.sin();
+ok(isNaN(tmp), "Math.sin() is not NaN");
+
+tmp = Math.sin(NaN);
+ok(isNaN(tmp), "Math.sin(NaN) is not NaN");
+
+tmp = Math.sin(Infinity);
+ok(isNaN(tmp), "Math.sin(Infinity) is not NaN");
+
+tmp = Math.sin(-Infinity);
+ok(isNaN(tmp), "Math.sin(-Infinity) is not NaN");
+
 var func = function  (a) {
         var a = 1;
         if(a) return;