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2026-04-21T02:43:14Z
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Mark: 6 revision(s)
2008-11-03T05:18:59Z
<p>6 revision(s)</p>
<p><b>New page</b></p><div> #include <stdio.h><br />
<br />
int main(void)<br />
{<br />
int* int_p;<br />
void* void_p;<br />
float* float_p;<br />
double* double_p;<br />
char* char_p;<br />
<br />
printf("Size of pointer int %d void %d float %d double %d char %d\n",<br />
sizeof(int_p),sizeof(void_p),sizeof(float_p),sizeof(double_p),sizeof(char_p));<br />
<br />
return 0;<br />
<br />
}<br />
<br />
There are 5 fundamental data types :<br />
Integer <br />
int <br />
<br />
Character <br />
char <br />
<br />
Floating Point <br />
float <br />
<br />
Double precision floating point<br />
double <br />
<br />
Void <br />
void<br />
<br />
http://www.exforsys.com/tutorials/c-language/c-programming-language-data-types.html<br />
<br />
IN Window<br />
Size of pointers int 4 void 4 float 4 double 4 char 4<br />
<br />
In Linix<br />
Size of pointers int 4 void 4 float 4 double 4 char 4<br />
<br />
There are no difference bewteen the size of pointers of the data types.<br />
And the size of pointers are same in Win & Linix<br />
<br />
int x;<br />
int y;<br />
printf("pointer_x = %p,pointer_y = %p,(long)(&x-&y)=%ld\n",&x,&y,(long)(&x-&y));<br />
printf("(long)&x-(long)&y=%ld\n",(long)&x-(long)&y);<br />
<br />
In linix <br />
<br />
pointer_x = 0x22ccb0,pointer_y = 0x22ccac,(long)(&x-&y)=1<br />
(long)&x-(long)&y=4<br />
<br />
In window<br />
<br />
pointer_x = 0xfff1a9d8,pointer_y = 0xfff1a9d4,(long)(&x-&y)=1<br />
(long)&x-(long)&y=4</div>
Mark