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David O'Brien
451 PointsDo you always have to declare the length or size of an array in C?
In other languages, JavaScript, PHP etc, it can be very useful to load dynamic data (perhaps from a database) in to arrays and therefore not define any length.
3 Answers
Ricardo Hill-Henry
38,442 PointsI'm not sure if you've been introduced to NSMutableArray yet, but it allows you to add and delete items from an array which is pretty much an array in other languages. In this case you can populate an array with a few methods at initialization that allow you to add items without specifying the array's size.
Ricky Catron
13,023 PointsI know it is pretty easy to make a dynamic array in C++ but I am not sure if is in C. The best solution i could think of was said by Ricardo. "You can however, make an array inside a loop that's created based on a number taken from user input."
David O'Brien
451 PointsThanks Guys
I'm working through the Treehouse iOS tute and not sure yet if, when I eventually reach the point where I develop a simple app, I'll be writing in C or C++. I think it's Objective C?
Ricky Catron
13,023 PointsIf you follow the treehouse tutorial and write an app it will be in Objective-C.
Ricardo Hill-Henry
38,442 PointsRicardo Hill-Henry
38,442 PointsI just realized you said C, not Objective-C. In C, I don't believe there is a way to initialize an array without a specific size. You can however, make an array inside a loop that's created based on a number taken from user input.