polserver/testsuite/escript/oper/minusminus03.src

var i:=3;
while (i-->0)
 print("while");
endwhile
print(i);

for (i:=3;i>0;i--)
  print("for");
endfor
print(i);
print(i--);

i:=1;
function p(i)
  print("in func after --");
  print(i);
  i--;
endfunction
p(i--);
print("i after func call "+cstr(i));

i:=1;
function pp(byref i)
  print("in func after --");
  print(i);
  i--;
endfunction
pp(i--); // since its post dec, the original i isnt passed to the func
print("i after func call "+cstr(i)); // in contrast to --i pp() does not change outer scope i

var ii:=i--;
print(ii);
ii-=i--;
print(ii);
ii:=1-(i--);
print(ii);

var d:=1.5;
d--;
print(d);

const c:=1;
c--;
print("should not change {}".format(c));
print("should still not change {}".format(c--));