× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.



On 4/11/2018 9:25 AM, Versfelt, Charles wrote:
Checking a program that bombed, I came across this line of code.
C eval @CurrOptFntSiz *= (1+(@PzFactor*.01))

I don't think I recall seeing *= in an eval statement.
The compiler certainly accepted it.
Is this multiplying @CurrOptFntSize by (1+(@PzFactor*.01)) and setting @CurrOptFntSize equal to that?

That's exactly what it is, Charlie!  That's a C-language syntax shortcut: a *= b is short for a = a*b.  It becomes important when you have longer variable names and you cut and paste.  Imagine this one:

   MyLongVariable1 = MyLongVariable1 * SomeFactor;
   MyLongVariable2 = MyLongVariable2 * SomeFactor;
   MyLongVariable3 = MyLongVariable2 * SomeFactor;
   MyLongVariable4 = MyLongVariable4 * SomeFactor;

Notice the problem?  It doesn't occur here:

   MyLongVariable1 *= SomeFactor;
   MyLongVariable2 *= SomeFactor;
   MyLongVariable3 *= SomeFactor;
   MyLongVariable4 *= SomeFactor;

Just one of those little nice to have features.


As an Amazon Associate we earn from qualifying purchases.

This thread ...

Replies:

Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.