C++ - char** argv vs. char* argv[]

Question

What is the difference between char** argv and char* argv[]? in int main(int argc, char** argv) and int main(int argc, char* arg

Answer 1

For the first part of the question:

• char** argv: pointer to a pointer to a char
• char* argv[]: pointer to an array

So the question is whether a pointer to a type C and an array C[] are the same things. They are not at all in general, BUT they are equivalent when used in signatures.

In other words, there is no difference in your example, but it is important to keep in mind the difference between pointer and array otherwise.