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iOS Objective-C Basics (Retired) Pointers and Memory Array Size and Length

Posted by Trent Baldwin
Trent Baldwin
3,542 Points

Can someone help me of the 3rd challenge on the array-size-and-length on ios?

This is what I typed: float real_numbers[5]; printf("Array real_numbers is %ld bytes.", sizeof(real_numbers)); printf("Array real_numbers can store %ld items.", sizeof(float)/sizeof(real_numbers));

2 Answers

Rodrigo Chousal
Rodrigo Chousal
16,009 Points
Rodrigo Chousal
Rodrigo Chousal
16,009 Points

Hi Trent!

You are on the right track, you just need to change your last (third) line. The mistake is in the division, you need to divide sizeof(real_numbers) by sizeof(float), like so:

printf("Array real_numbers can store %ld items.", sizeof(real_numbers)/sizeof(float));
Tristan Gaebler
Tristan Gaebler
6,204 Points

Rodrigo is correct

Trent Baldwin
Trent Baldwin
3,542 Points
Trent Baldwin
Trent Baldwin
3,542 Points

Thank you Rodrigo :D