Need help with array memory in C

[gacon113]

I need to print an array[256x65536], I made a simple program but alway get error 2 if a=256 and b=65536.
Please help.

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <math.h>

typedef unsigned int WORD;
typedef WORD* WORDPTR;

WORDPTR *S;
WORDPTR D;

WORD x_num;
WORD y_num;

WORD a;
WORD b;
WORD i, j;
int main()
{
puts("------------------ Start --------------------");
puts("");

a = 0;
printf("Enter a = ");
scanf("%u", &a);


b = 0;
printf("Enter b = ");
scanf("%u", &b);

x_num = 1 << a;
y_num = 1 << b;

S = (WORDPTR *)malloc(x_num*sizeof(WORDPTR));
if (S == NULL)
{
puts("Error 1!");
return 1;
}
for (i = 0; i < x_num; i++)
{
S = (WORDPTR)malloc(y_num*sizeof(WORD));
if (S == NULL)
{
puts("Error 2!");
return 1;
}
}

D = (WORDPTR)malloc(y_num*sizeof(WORD));
if (D == NULL)
{
puts("Error 3!");
return 1;
}
puts("OK!");

return (0);
}

 

[macleod1021]

Arrays are zero based, so if you have 256 elements, the positions are 0-255.

 

[ArkM]

IMHO, you can't print array 256x65536 (it's tons of paper.
What platform? You can't allocate 65536 elements on 16-bit platform (bad allocation then segment faults - 100%). This program allocates S on 32-bit...

 

[gacon113]

Thank you all for quick response.

IMHO, you can't print array 256x65536 (it's tons of paper.
--> I will store in file

What platform?
--> I use windows XP

You can't allocate 65536 elements on 16-bit platform (bad allocation then segment faults - 100%). This program allocates S on 32-bit...
--> DO you have any solution




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[ArkM]

Well, I have no problems in this code on old good VC++ 6.0 (Windows console application).

 

[gacon113]

Thanks ArkM.

I try VC++6, it works now. Great!

My favorite site:

http://www.vntrade.info

http://tourauvietnam.com