Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

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

Con Vafeas
Con Vafeas
340 Points

Array Length

Why isn't my code allowing me to proceed?

float real_numbers[5]; printf("Array real_numbers can store %ld items.\n", sizeof(real_numbers)/sizeof(float));

Xcode displays the correct result "Array real_numbers can store 5 items."

array_length.mm
float real_numbers[5]; 
printf("Array real_numbers can store %ld items.\n", sizeof(real_numbers)/sizeof(float));

The output from Treehouse is Bummer! Make sure you are calling printf and passing a string (not an NSString) and real_numbers as the parameters. The correct format option is '%ld'.