C segmentation fault-char pointers

Question

I need help figuring out why I am getting a segmentation fault here. I have gone over it and I think I am doing something wrong with the pointers, but I can figure out what.

Answer 1

That pointer a does not get the actual space where to store the data. You just declare the pointer, but pointing to where? You can assign memory this way:

char *a = malloc(1);

Then it won't segfault. You have to free the variable afterwards:

free(a);

But in this case, even better,

char a = 'a';
encript(&a);