Free memory in C Programming

Question

How can I free memory of an array of pointers without knowing the size of the array?
For example: char *planet[]

Answer 1

thank you Coder Kitten

Answer 2

The array is used as parameter for a function. Thanks all, I solved the problem by using pointer to pointer to traverse though the array. Martin Taylor Coder Kitten

Answer 3

Thanks 🌹 for the Help

Answer 4

char **planets;
planets = malloc(sizeof(char*) * 8);

this function is use for the memory of numbers in c.