Thread: array declaration

Please allow me to make a beginner's question. I'd like to declare an array of structures for holding data of a worksheet:

Code:

struct row {
int name;
int age;
int dob;
...(many entries)...
};

main()
{
struct row worksheet[MAXROW];

....
}

and I got an error message "Segmentation fault (core dumped)" when MAXROW=500. (size of struct row = 5244byte)
As I did not get the error when MAXROW=10, the problem seems to be an available memory space, but I could also make it without the error under the following two versions of codes:

version1 (MAXROW=500)

Code:

struct row {
int name;
int age;
int dob;
...(many entries)...
} worksheet[MAXROW];

main()
{
....
}

version2 (MAXROW=500)

Code:

#include <stdlib.h>

struct row {
int name;
int age;
int dob;
...(many entries)...
};

main()
{
struct row *worksheet;
worksheet = calloc(MAXROW, sizeof(struct row));

....
}

Could anyone please point out what's wrong in the first code?