passing argument 1 of strlen from incompatible pointer type

Question

I am taking values from array and saving it in linked list as follows:

NSString *formataddr=[RestaurantList objectAtIndex:0];
node1->formattedAddress = (char*)malloc(strlen(formataddr)*sizeof(char)+1);

where formattedaddress is char array. But I'm getting error

passing argument 1 of strlen from incompatible pointer type

Can anyone help me solve this? Thanks!

Answer 1

You can't use strlen() with NSString *, you have to use [formataddr length].

Answer 2

Try

[formataddr length]

instead of strlen(formataddr)

NSString isn't supported by strlen().