May I know what happen to my code when compile I get error ?

 

Does it work if you initialise all the elements of member_list to point to a valid string?

 

May I know what happen to my code when compile I get error ?

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Well, you are trying to iterate ten times through an array that only contains 8 elements. You can use 'sizeof(members_list)/sizeof(members_list[0])' to calculate the number of elements at compile time. Just remember that it is only valid to do so with so-called "local-scope arrays". (Which is to say, arrays declared at or above the level that the sizeof(x)/sizeof(x[0]) expression appears).

Also, why are you incrementing the pointer at 'members_list[index]'?

 

Well, you are trying to iterate ten times through an array that only contains 8 elements.

The iteration looks like it goes over elements 0 to 9 in an array with 10 elements.

 

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The iteration looks like it goes over elements 0 to 9 in an array with 10 elements.

Yes I overlooked that bit, didn't I? Thanks for the correction. (Serves me right for answering question before coffee!)

Anyway, now that I can actually think straight...

The main problem is that member_list is partially uninitialized. Indexes 0, 5, 7, 8, and 9 should be pointing to something. (Maybe set the string at index 0 to "***UNINITIALIZED***" or what have you to serve as the default value?)

 

What are you trying to do in this line

member_list[index]++;​

You are trying to increment a string variable. I don’t know what that means.

 

You are trying to increment a string variable.

I think member_list contains some pointers to string variables and some uninitialised values. I don't know what the TS's intention is with the increment though. Maybe to change the pointer from pointing to person[n] to point to person[n+1]?