Simple Pointer Trace
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#include <stdio.h>
main() {
int a, b, c;
int *ptr1, *ptr2;
/* Initialization of Variables */
a = 2; b = 4; c = 8;
ptr1 = &a; ptr2= &c;
printf("a = %d, b = %d, c= %d\n", a, b, c);
c = *ptr2 + 7;
*ptr1 = b;
printf("a = %d, b = %d, c= %d\n", a, b, c);
ptr1 = ptr2;
*ptr1 *= 4;
printf("a = %d, b = %d, c= %d\n", a, b, c);
ptr2 = &b;
*ptr2 = *ptr1 + 3;
a = *ptr2 / a;
printf("a = %d, b = %d, c= %d\n", a, b, c);
}
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Also avaible... The commented version on what
all the pointer stuff means. Try to figure it out on your own first. *smile*
It's worth it.
Output:
<![CDATA[
a = 2, b = 4, c= 8
a = 4, b = 4, c= 15
a = 4, b = 4, c= 60
a = 15, b = 63, c= 60
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