Piotr Caban : jscript: Added implementation of Math_exp.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 62319694765447a331f7fb946f0ec84d94cc35e1
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=62319694765447a331f7fb946f0ec84d94cc35e1

Author: Piotr Caban <piotr.caban at gmail.com>
Date:   Wed May 27 01:09:37 2009 +0200

jscript: Added implementation of Math_exp.

---

 dlls/jscript/math.c       |   18 ++++++++++++++++--
 dlls/jscript/tests/api.js |   27 +++++++++++++++++++++++++++
 2 files changed, 43 insertions(+), 2 deletions(-)

diff --git a/dlls/jscript/math.c b/dlls/jscript/math.c
index 2c45f8f..0253111 100644
--- a/dlls/jscript/math.c
+++ b/dlls/jscript/math.c
@@ -293,8 +293,22 @@ static HRESULT Math_cos(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *d
 static HRESULT Math_exp(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, exp(num_val(&v)));
+    return S_OK;
 }
 
 static HRESULT Math_floor(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
diff --git a/dlls/jscript/tests/api.js b/dlls/jscript/tests/api.js
index 3da1cc7..8c2065e 100644
--- a/dlls/jscript/tests/api.js
+++ b/dlls/jscript/tests/api.js
@@ -767,6 +767,33 @@ ok(isNaN(tmp), "Math.atan2() is not NaN");
 tmp = Math.atan2(1);
 ok(isNaN(tmp), "Math.atan2(1) is not NaN");
 
+tmp = Math.exp(0);
+ok(tmp === 1, "Math.exp(0) = " + tmp);
+
+tmp = Math.exp(1);
+ok(Math.floor(tmp*100) === 271, "Math.exp(1) = " + tmp);
+
+tmp = Math.exp(-1);
+ok(Math.floor(tmp*100) === 36, "Math.exp(-1) = " + tmp);
+
+tmp = Math.exp(true);
+ok(Math.floor(tmp*100) === 271, "Math.exp(true) = " + tmp);
+
+tmp = Math.exp(1, 1);
+ok(Math.floor(tmp*100) === 271, "Math.exp(1, 1) = " + tmp);
+
+tmp = Math.exp();
+ok(isNaN(tmp), "Math.exp() is not NaN");
+
+tmp = Math.exp(NaN);
+ok(isNaN(tmp), "Math.exp(NaN) is not NaN");
+
+tmp = Math.exp(Infinity);
+ok(tmp === Infinity, "Math.exp(Infinity) = " + tmp);
+
+tmp = Math.exp(-Infinity);
+ok(tmp === 0, "Math.exp(-Infinity) = " + tmp);
+
 var func = function  (a) {
         var a = 1;
         if(a) return;