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

Tawanda Kanyangarara
Tawanda Kanyangarara
4,284 Points
Posted by Tawanda Kanyangarara
Tawanda Kanyangarara
4,284 Points

what is the correct answer for this question, when i run it through xcode i get 5 but this keeps telling me i am wrong?

float real_numbers[5]; or float real_numbers[] = {11.11,22.22,33.33,44.44,55.55};

printf("Array real_numbers is %ld items.", sizeof(real_numbers)/sizeof(float));

should print out 5 but it doesnt allow me to continue? any help please, i dont know why it doesnt work

1 Answer

Thomas Nilsen
Thomas Nilsen
14,957 Points
Thomas Nilsen
Thomas Nilsen
14,957 Points 
float real_numbers[5];
printf("Array real_numbers is %ld bytes.", sizeof(real_numbers));

What you wrote outputs the array length. You were asked to output the size of the array in bytes ;)

The last answer should look like this:

printf("Array real_numbers can store %ld items.", sizeof(real_numbers)/sizeof(float));