• The only difference between arrays and pointers is that
  declaring aas an array means that the identifier ais read-
  only. That is, it cannot appear as an Lvalue.

pa= &a[3]
a= pa + 1

is ok
is not

Here we are incrementing pa by one unit of size float.
This is an address, but if we store it in a, then we would be
saying that &a[0]is now &a[1].Even a computer would be
confused!! Therefore not allowed, because the original
array declaration was

float a[10]; Dynamic Memory Allocation.

By using the three routines below we can implement
dynamically allocated arrays by providing a mechanism for
obtaining a pointer to a block of new memory.

#include <stdio.h> void* malloc( size_t size ); void* calloc( size_t NumMembers, size_t size ); void free( void* p );

Look at the examples pointers-3.c and its associated output
pointers-3.log

January 26, 1998

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JH/TM