clear
;
echo $_FILE

undef -all
define A 1
define B 2

list -s
#if $A>0
print $A
#endif

#if $A==$B
print A is equal B.
#else
print A id not equal B.
#endif

#ifdef A
print A is defined.
#else
print A is not defined.
#endif

#ifndef C
print C is not defined.
#else
print C is defined.
#endif


