help with switch statement

JohnKennedy · Joined: 12 May 2004 Posts: 38

Hi
I need to define some constants and the value of these constants depends on the voltage on my A/D pin, so I thought use a switch statement but I can't seem to get it right, I have the following

asmallri · Joined: 12 Aug 2004 Posts: 1635 Location: Perth, Australia

Wrong language and code does not make sense. In C this has to be a constant or multiple statements such as :

JohnKennedy · Joined: 12 May 2004 Posts: 38

Ok

That might have been in another lifetime when I was doing something in Visual Basic, guess the only way to achieve what I want is multiple IF statements.

Thanks for pointing out the error on the defines, though curiously it did compile without even a warning, though I hadn't tested it to see if it worked. The defines were defined before being used by the main body of the program so maybe thats why it compiled ok.

Thanks again

JFK

Ttelmah · Guest

There will be no syntax error on the defines. It is perfectly acceptable to put them anywhere in the code, _but_ they will all be executed before the program runs. Hence the compiler won't complain.
In C++ (but not in C), the switch statement can be used with 'ranges', and it may be this version you have seen.

Best Wishes