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/* Expansion of read-modify-write operations on volatiles */
#include <stdio.h>
volatile int x;
volatile unsigned char c;
int main()
{
x = 0;
printf("x = %d\n", x);
x++;
printf("x = %d\n", x);
printf ("x++ = %d\n", x++);
printf("x = %d\n", x);
x += 42;
printf("x = %d\n", x);
printf ("x += 12 = %d\n", x += 12);
printf("x = %d\n", x);
x--;
printf("x = %d\n", x);
printf ("x-- = %d\n", x--);
printf("x = %d\n", x);
x -= 7;
printf("x = %d\n", x);
printf ("x -= 3 = %d\n", x -= 3);
printf("x = %d\n", x);
++x;
printf("x = %d\n", x);
printf ("++x = %d\n", ++x);
printf("x = %d\n", x);
--x;
printf("x = %d\n", x);
printf ("--x = %d\n", --x);
printf("x = %d\n", x);
c = 0;
printf("c = %d\n", c);
c++;
printf("c = %d\n", c);
printf ("c++ = %d\n", c++);
printf("c = %d\n", c);
c += 250;
printf("c = %d\n", c);
printf ("c += 42 = %d\n", c += 42);
printf("c = %d\n", c);
c--;
printf("c = %d\n", c);
printf ("c-- = %d\n", c--);
printf("c = %d\n", c);
c -= 7;
printf("c = %d\n", c);
printf ("c -= 3 = %d\n", c -= 3);
printf("c = %d\n", c);
++c;
printf("c = %d\n", c);
printf ("++c = %d\n", ++c);
printf("c = %d\n", c);
--c;
printf("c = %d\n", c);
printf ("--c = %d\n", --c);
printf("c = %d\n", c);
return 0;
}
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