Lpc2000

Hi, 

> extern IDINFO que_ids[]; and extern IDINFO *que_ids; should 
> be equivalent as far as I am aware and this is the first 
> instance where I have found two compilers producing 
> completely different code (one seemingly false).

They certainly are NOT equivalent!  The first says that que_ids is an
array of IDINFO elements based at que_ids (e.g. an array starting at
0x4000).  The second says que_ids is a pointer to a IDINFO based at
que_ids (e.g. at 0x4000 there is a pointer to an array).

You can boil this down really easily:

static int xa[10];
static int *xp;
extern int xae[];

// Assign the address of I to the pointer P
xp = &i;

// Try doing that with an array
xa = &i;  // won't have it.

// Or an external unspecified array
xae = &i;  // won't have it.

Simple.  User error.

--
Paul Curtis, Rowley Associates Ltd  http://www.rowley.co.uk
CrossWorks for MSP430, ARM, AVR and (soon) MAXQ processors