C++ pointer usage in embedded system

[thannara123]

Hai experts ,
I want to know the usage of Pointer in C++ / C .with example in case of Embedded system (PIC ,8051).(keil or mikroc)

Thanks in advance

 

[embeddedlover]

Basically,Pointer is used to hold the address...may be of a single variable or of an starting address of array (which we call chunk of memory)

One case where it is useful is, if we are passing an array to a function, we need not send the whole array at a time, by simply passing starting address of the array (i.e., pointer) there by making the entire array accessible in the function....

Another case is dynamic memory allocation...where memory is allocated during run time....

 

[thannara123]

thanks sir for replay by the using of pointer we can get memory
is int it sir ?
please give a simple instruction

---------- Post added at 13:36 ---------- Previous post was at 13:31 ----------

thanks sir for replay by the using of pointer we can get memory
is int it sir ?
please give a simple instruction

 

[thannara123]

hai every body finally i findout the details of pointers usage
**broken link removed**

 

[alexan_e]

There is also a nice tutorial for pointers here
**broken link removed**

It has a PDF version too if you want to download it.

Alex