Solution for Exercise 18-4
ex1804
#include <stdio.h> int main() { int array[5]; printf("The array has a size of %u.\n",sizeof(array)); return(0); }
Notes
* For a Macintosh, or some other Unix variant, change the %u
conversion character used in printf() at Line 7 to %ld
.
* The array doesn't need to be assigned values to make the sizeof operator work. That's because space is allocated to store 5 int values when the program runs. The sizeof operator merely reports on the amount of space allocated.
* Here is sample output:
* An int array of 5 elements occupies 20 bytes of storage because each int value uses 4 bytes: 5 × 4 = 20.
* If the array were declared as a double of 5 elements it would use 40 bytes of storage. That's because the size of a double is 8 bytes. You can change Line 5 in the code, build and run to confirm.
Copyright © 1997-2024 by QPBC.
All rights reserved