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itsanjan / arduino

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Array length command #539

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
What change would like to see?

It would be useful to have an array length command.  Is is enough to do 
something as simple as:

int length = sizeof(array)/sizeof(int);  ?

Original issue reported on code.google.com by tom.i...@gmail.com on 9 May 2011 at 10:41

GoogleCodeExporter commented 9 years ago 
The problem is that this only works in the scope in which the array was 
defined.  If you pass an array to a function, sizeof(array) doesn't work in the 
function: it returns the size of a pointer, which is unrelated to the number of 
elements in the array.  Unfortunately, this is one of those C limitations that 
we inherit.

Original comment by dmel...@gmail.com on 9 May 2011 at 3:24