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This is an interview question:
What is difference between int [] and int*, all of them are input arguments to a function.
f(int a[] , int* b)
My answers:
For f(), they have the same functions. The first one is the beginning position of the first element in a[].
The second one points to an int.
But, how to distinguish them from each other without passing other arguments ?
As function parameters, the two types are exactly the same,
int []is rewritten toint *, and you can’t distinguish between them. Many many questions in StackOverflow cover this subject, and the c-faq even has a special section on pointer and arrays (as arguments or not). Take a look into it.