> In C and C++, there's no such thing as an array
Yes there is. `int a[10]` allocates 10 consecutive `int`s on the stack, and it's the only language construct to express that (with `alloca` but it's a builtin function).
Yes there is. `int a[10]` allocates 10 consecutive `int`s on the stack, and it's the only language construct to express that (with `alloca` but it's a builtin function).
void f(int len){
int array[len];
printf("sizeof len: %zu\n", sizeof(array));
}
On Windows the stack is one megabyte by default. We live in the future and we're still afraid of recursion without tail-call optimisation and arrays on the stack. Ridiculous.
So having a large stack will only consume virtual address space which we have plenty of (2^48 bytes in most x86_64's) but will not consume physical memory, which is a more limited resource.