[OCLUG-devel] sizeof () works differently on char's, int's, etc.

[James Colannino]

Hey everyone.  I used the following to test how the sizeof() function 
measures arrays of various variable types:

#include <stdio.h>

char  line[10];
int   integer[10];
float floaty[10];

int main()

{
	printf ("\nCharacter: %d\n", sizeof(line));
	printf ("Integer: %d\n", sizeof(integer));
	printf ("Floating: %d\n\n", sizeof(floaty));

	return 0;
}

My output came out as the following:

Character: 10
Integer: 40
Floating: 40

So my question is this: why does the sizeof() function work with 
character arrays but not with numerical ones?  Is the sizeof() function 
only intended to be used for characters and not for numbers?  This has 
me very confused.

James
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