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OrbWorks Community Forum • View topic - How many items in array?
Page 1 of 1

PostPosted: Tue Jan 21, 2003 10:48 am
by chrisleeuk
Normally I program in VB which has a 'Ubound' function to get the number of elements in an array.

Anyone know a way of returning an integer indicating the number of elements?

PostPosted: Tue Jan 21, 2003 11:36 am
by guy
You can't do this in C or PocketC. The answer is to look at your array declaration in the source code and copy the number down :)

If you need dynamic data structures, how about having a header structure that contains the count of elements and the address of the first element.


Guy
[url]mailto:pcform@pcform.net[/url]
http://www.pcform.net
PocketC CE API interface: http://www.networkdynamics.net/PCForm.html#library
PCForm and CE API forum: http://www.networkdynamics.net/forum

PostPosted: Tue Jan 21, 2003 11:13 pm
by KOU
>>The answer is to look at your array declaration in the source code and copy the number down :)

Same idea...

Example:
#define NUM_ARRAY 100 //in header or source code this will replace any NUM_ARRAY or something else into "100"

int array[NUM_ARRAY]; //this will be replaced to int array[100];

just use "NUM_ARRAY" instead of Ubound.

Be sure to use a unique name for NUM_ARRAY.
(I use long name with capital letters)

KOU

PostPosted: Mon Jan 27, 2003 5:12 am
by chrisleeuk
Thanks for the answers, the reason I wanted to know this was that I have created a join function.

This joins all of the elements in an array and puts them into a single string.

I thought it would be nice not to need to pass the number of elements to 'join' if it was possible.

No problem.