Most of us decided to use (ASP) VBScript to quickly write a script or build a simple website, writing code in a ‘higher-level’ has the advantage to keep our mind on the functionality of the script or website and forget about the low-level technical stuff.
Unfortunately, we have to worry about the following issue (example is using Classis ASP/VBScript)
Response.Write CDbl(112.51)<>CDbl(94.55+17.96)
'Answer: TRUE -> WRONG!!
Response.Write CCur(112.51)<>CCur(94.55+17.96)
'Answer: FalseThe correct answer is FALSE.
The problem is in fact that a CDbl (Convert to Double) will fill 64bits with ones and zeros and it will not be 112.51 but 112.5099999999999999999 (or something similiar).
Another example:
Response.Write CSng(0.1)=CDbl(0.1)
'Answer: FALSE -> WRONG!!Explanation
0.1 as Single (in Binary) is: 0.00011001100110011001100.
0.1 as Double (in Binary) is: 0.000110011001100110011001100110011001100110011001100110.
Also see a related MSDN Blog article.
(Note: This was tested on my Intel Xeon X64 with Windows 2003 Server X64, running IIS6 in 32bit mode)
Link exchange is nothing else except it is just placing the other person’s web site
link on your page at appropriate place and
other person will also do similar in favor of you.