Can you define the size of an array at runtime in C

Question

New to C, thanks a lot for help.

Is it possible to define an array in C without either specifying its size or initializing it.

For example, can I prompt a u

Answer 1

Arrays, by definition, are fixed-size memory structures. You want a vector. Since Standard C doesn't define vectors, you could try looking for a library, or hand-rolling your own.

You need to do dynamic allocation: You want a pointer to a memory address of yet-unkown size. Read up on malloc and realloc.