c for Geek - part 2
	
author: ev1lut10n

[Casting pada Bahasa C]

Casting merupakan konversi NILAI pada c. PERHATIAN !!! yang dikonversi 
adalah "NILAI" nya ! 

Contoh2 casting pada c:

[casting dari int ke long]
================
#include <stdio.h>
int main()
{
   int a=1000;
   long b;
   b=(long) (a);
   printf("%d\n",b);	
}
================

[contoh casting dari int ke pointer]
===================
#include <stdio.h>
int main()
{
   int *pointer;
   int int_biasa=100;
   pointer=(int *) (int_biasa);
   printf("%d\n",pointer);
   printf("alamat memori pointer: %p\n",&pointer);
   printf("\ndone dude\n");	
}
===================


cek dengan gdb:
=================
ev1lut10n# gcc -o casting casting.c -g
ev1lut10n# gdb -q casting
(gdb) l
1	#include <stdio.h>
2	int main()
3	{
4	   int *pointer;
5	   int int_biasa=100;
6	   pointer=(int *) (int_biasa);
7	   printf("%d\n",pointer);
8	   printf("alamat memori pointer: %p\n",&pointer);
9	   printf("\ndone dude\n");	
10	}
(gdb) b 9
Breakpoint 1 at 0x80484b4: file casting.c, line 9.
(gdb) run
Starting program: /root/Desktop/Downloads/c/tes/casting 
100
alamat memori pointer: 0xbfbfea0c

Breakpoint 1, main () at casting.c:9
9	   printf("\ndone dude\n");	
(gdb) x/d 0xbfbfea0c
0xbfbfea0c:	100
=================


terlihat pointer kita menunjuk ke alamat memori 0xbfbfea0c yang isinya adl 
100