Ternary operator executes both sides

[GoogleCodeExporter]

Consider:
    int a = 1;
    a?printf("a!=0\n"):printf("a==0\n");

Based on this, since a == 1 (rather, since a != 0), only "a!=0" should be 
printed. If instead is set to 0, only "a == 0" should be printed.

Regardless of the value of a, both printf()s are performed.

This is using picoc 2.1 on OS X.

Original issue reported on code.google.com by [email protected] on 2 Jul 2013 at 1:35