variables in c
- From: Daniel Dalton <daniel.dalton47@xxxxxxxxx>
- To: programmingblind@xxxxxxxxxxxxx
- Date: Sat, 22 Sep 2007 20:32:15 +1000
Hi,
If I write:
#include <stdio.h>
int x =6, y =78;
void my_function(void);
int main ()
{
printf("\nx =%d and y =%d", x, y);
my_function ();
printf("Left my_function\n");
printf("\nx now =%d and y now =%d", x, y);
}
void my_function (void)
{
int x =124, y =245;
printf("\nIn my_function\n");
printf("x =%d y =%d\n", x, y);
}
So are both x and y variables local?
The second line of the program(int x, y;) isn't in a function. So how
does the compiler know what function they are for? Are they global
variables? If they are then how can you have a local variable called the
same thing as a global variable?
Thanks,
-- Daniel Dalton
http://members.iinet.net.au/~ddalton/
daniel.dalton47@xxxxxxxxx
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