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

cannot get this one.

cannot get this question

array_length.mm
float real_numbers [5];
printf("Array real_numbers is %lu bytes.", sizeof(Byte));

1 Answer

Holger Liesegang
Holger Liesegang
50,595 Points

Hi Armen Gharibi !

Challenge Task 2 of 3 asks you to use the printf function to print the size in bytes of the variable real_numbers. Your output should look like the following: Array real_numbers is x bytes.

float real_numbers [5];
printf("Array real_numbers is %ld bytes.\n", sizeof(real_numbers));

The result of sizeof(real_numbers) is an NSInteger, hence the %ld String Format Specifier