/*
 ============================================================================
 Name        : hello.c
 Author      :
 Version     :
 Copyright   :
 Description : hello in C, Ansi-style
 ============================================================================
 */

#include <stdio.h>
#include <stdlib.h>

int main(void)
{
	int var1[1000000];
	printf("%i",var1[0]);
	return EXIT_SUCCESS;
}

#include <stdlib.h>
#include <stdio.h>
#include <sys/resource.h>

int main(void)
{
    const rlim_t kStackSize = 1024L * 1024L * 1024L;
    struct rlimit rl;
    int result;
    result = getrlimit(RLIMIT_STACK, &rl);
    printf("%i (%i)\n",(int)rl.rlim_cur,result);

    rl.rlim_cur = kStackSize;
    result = setrlimit(RLIMIT_STACK, &rl);
    printf("%i (%i)\n",(int)rl.rlim_cur,result);

    result = getrlimit(RLIMIT_STACK, &rl);
    printf("%i (%i)\n",(int)rl.rlim_cur,result);

    int k[2090000];
    printf("k\n");
    return EXIT_SUCCESS;
}

8388608 (0)
1073741824 (0)
1073741824 (0)
k

int k[2090000]; ==> int k[2099000];

no output

==7063== Process terminating with default action of signal 11 (SIGSEGV)
==7063==  Access not within mapped region at address 0x7FE7FE3A8
==7063==    at 0x400649: main (big_array.c:17)
==7063==  If you believe this happened as a result of a stack
==7063==  overflow in your program's main thread (unlikely but
==7063==  possible), you can try to increase the size of the
==7063==  main thread stack using the --main-stacksize= flag.
==7063==  The main thread stack size used in this run was 8388608.

"Warning: client switching stacks?  SP change: 0x7ff0000d0 --> 0x7fe7fe3d0
==8837==          to suppress, use: --max-stackframe=8396032 or greater"

"Access not within mapped region at address 0x7FE7FE3C8
==8837==    at 0x40050C: main (big_array.c:32)"

ulimit -s

ulimit -s 16384
ulimit -s