multidimentiona l array problem.

[pessi]

Dear All

I have the following code which gives a segmentation fault. I dont think the array size is too large to result in a segmentation fault. Any help please.

int xdim = 36;
int ydim = 256;
int zdim = 256;
 
double ***something = (double ***)malloc(xdim * sizeof(double **));
for(i=0; i< xdim; i++)
something[i] = (double **)malloc(ydim * sizeof(double *));
 
for(j=0; j< ydim; j++)
something[i][j] = (double *)malloc(zdim * sizeof(double));
 
for(i=0; i< xdim; i++)
for(j=0; j< ydim; j++)
for(k=0; k< zdim; k++)
something[i][j][k] = 1.0;
 

Thanks in advance,
Prasad.

[hariharanmca]

Dear All

I have the following code which gives a segmentation fault. I dont think the array size is too large to result in a segmentation fault. Any help please.

int xdim = 36;
int ydim = 256;
int zdim = 256;
 
double ***something = (double ***)malloc(xdim * sizeof(double **));
for(i=0; i< xdim; i++)
something[i] = (double **)malloc(ydim * sizeof(double *));
 
for(j=0; j< ydim; j++)
something[i][j] = (double *)malloc(zdim * sizeof(double));
 
for(i=0; i< xdim; i++)
for(j=0; j< ydim; j++)
for(k=0; k< zdim; k++)
something[i][j][k] = 1.0;
 

Thanks in advance,
Prasad.

Hi just check here.

for(i=0; i< xdim; i++)
something[i] = (double **)malloc(ydim * sizeof(double *));
// after this for loop i = xdim
for(j=0; j< ydim; j++)
//something[i][j] will be something[xdim][0 to ydim]
something[i][j] = (double *)malloc(zdim * sizeof(double)) ;

and point what error you are getting.

[pessi]

After seeing your reply I realised what a fool I am. The problem is that every problem scares me before even I attempt at it...damn..that was very easy...thanks anyway

Thank you again.
prasad.

[hariharanmca]

After seeing your reply I realised what a fool I am. The problem is that every problem scares me before even I attempt at it...damn..that was very easy...thanks anyway

Thank you again.
prasad.

Happy Coding and take care.