<html>
<head>
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix">On 07/18/14 04:11, Shuai Meng wrote:<br>
</div>
<blockquote
cite="mid:CAOhhAYMLXgNe6Sscx9usWq7rU2Zy=Ngy8sF2QKnne_mh=8DL0w@mail.gmail.com"
type="cite">
<div dir="ltr"><br>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">2014-07-17 11:11 GMT+08:00 Dmitry
Timoshkov <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:dmitry@baikal.ru" target="_blank">dmitry@baikal.ru</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">Shuai
Meng <<a moz-do-not-send="true"
href="mailto:mengshuaicalendr@gmail.com">mengshuaicalendr@gmail.com</a>>
wrote:<br>
<br>
> + switch(V_VT(arg)) {<br>
> + case VT_UI1:<br>
> + case VT_I2:<br>
> + case VT_I4:<br>
> + case VT_I8:<br>
> + case VT_R4:<br>
> + case VT_R8:<br>
> + case VT_BOOL:<br>
> + case VT_EMPTY:<br>
> + case VT_CY:<br>
> + V_BOOL(res) = VARIANT_TRUE;<br>
> + break;<br>
<br>
This list is far from being complete. It seems that it
should also<br>
contain at least VT_UI2, VT_UI4, VT_UI8, VT_I1, VT_INT,
VT_UINT.<br>
VT_VECTOR, VT_ARRAY and VT_BYREF modifers probably also
should be<br>
taken into account.<br>
<span class=""><font color="#888888"><br>
--<br>
Dmitry.<br>
</font></span></blockquote>
</div>
Hi, I think over it again. Let's face the fact: what are all
the possible results of switch(V_VT(arg)) ? Will VT_UI2,
VT_UI4, VT_UI8, VT_I1, VT_INT, VT_UINT and so on exist? My
answer is no. arg comes from users' input, which means it only
belongs to the subtypes of variant, see here:</div>
<div class="gmail_extra"><a moz-do-not-send="true"
href="http://msdn.microsoft.com/en-us/library/9e7a57cf%28v=vs.84%29.aspx">http://msdn.microsoft.com/en-us/library/9e7a57cf(v=vs.84).aspx</a><br>
</div>
</div>
</blockquote>
<br>
No, your answer is wrong. VBScript code may be called from
non-VBScript (and the other way around) and then any type of VARIANT
may be passed around. Also, please add a test with an object having
default value, which is of numeric type. I have a feeling that the
right thing to do here is to call to_double and see if it fails or
not, but this needs tests to confirm.<br>
<br>
Jacek<br>
</body>
</html>