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

Kamran Ismayilov
Kamran Ismayilov
5,753 Points
Posted by Kamran Ismayilov
Kamran Ismayilov
5,753 Points

Objective-C Basics/arraylength

What should I do???

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

1 Answer

Steven Jemmott
Steven Jemmott
8,109 Points
Steven Jemmott
Steven Jemmott
8,109 Points

Since you know the size of the array in bytes sizeof(real_numbers), what you now need to find is how many bytes are in a float which would be calculated by sizeof(float). The array holds float variables. You know the size of the array in bytes. You also know the amount of bytes in one float variable.

Therefore, your array can hold sizeof(real_numbers)/sizeof(float) items.