#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#define Allocate(VariableOrType, Size) \
(typeof(VariableOrType) *)malloc( sizeof(VariableOrType) * (Size))
#define AllocateZero(Pointer, Size) \
bzero(Pointer, (Size) * sizeof(*Pointer))
#define AllocateFree(Pointer) \
free(Pointer)
typedef struct{
int size;
short *array;
}LengthArray;
int main() {
LengthArray foo = {20000, Allocate(*foo.array, foo.size) };
foo.array[foo.size-1] = 120;
AllocateZero(foo.array, foo.size);
//printf("Last value in Array: %hd\n", foo.array[foo.size-1] );
printf("sizeof(dereference) = %lu\n", sizeof( *foo.array ));
printf("sizeof(type) = %lu\n", sizeof( short ));
printf("sizeof(typeof(dereference)) = %lu\n", sizeof( typeof(*foo.array) ));
printf("sizeof(typeof(type)) = %lu\n", sizeof( typeof(short) ));
printf("sizeof(typeof(dereference) *) = %lu\n", sizeof( typeof(*foo.array) *));
printf("sizeof(typeof(type) *) = %lu\n", sizeof( typeof(short) *));
printf("These last two are important for casting, and they aren't possible with decltype().");
AllocateFree(foo.array);
return 0;
}
