QVector crashes when array size is big

[drhex]

#include <stdio.h>
#include <sys/resource.h>
 
int main(int , char *[])
{
    struct rlimit rlim;
    getrlimit(RLIMIT_STACK, &rlim);
    printf("max stack size=%d bytes\n", (int)rlim.rlim_cur);
}

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

int main(int , char *[])
{
    struct rlimit rlim;
    getrlimit(RLIMIT_STACK, &rlim);
    printf("max stack size=%d bytes\n", (int)rlim.rlim_cur);
}

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This prints

max stack size=8388608 bytes

on my machine. One learns something every day!