Multiple Types

So we saw that we can push both int and int * types into the same stack (again, a bad idea).

In this example, we'll see that not only can you push values and pointers into the same stack, but you can also push different types of values into the same stack.

This is once again a terrible idea, but the thrust of what we're getting at here is:

C doesn't care what you put in memory, it's bytes all the way down.

Fortunately, C doesn't let you do these conversions automatically... but it still lets you do them. When you're working with void *, you're working with raw memory addresses, and you can cast them to whatever you want.

Assignment

Complete the stack_push_multiple_types function.

1. Allocate memory on the heap for a float and set the value to which it's pointed to 3.14.
2. Push the float * onto the stack using stack_push.
3. Create a char * constant that points to the value: Sneklang is blazingly slow!
4. Get the length of the string for memory allocation.

   Remember to leave room for the null terminator (\0)!

5. Allocate memory for a char *.
6. Copy the value to the memory.
7. Push the pointer to the memory onto the stack using stack_push.

Tip

Don't forget to use the string.h library when working with char * types.