On Wed, 8 Apr 2015 12:36 am, jonas.thornv...@gmail.com wrote: > Bullshit declare two integers in any language one 7 and one 4 and then > write x=7+4; if you find a programming language where that does not yield > 11 tell me.
In Forth, you can set the base to any arbitrary integer (within reason). steve@orac:/home/steve$ gforth Gforth 0.7.0, Copyright (C) 1995-2008 Free Software Foundation, Inc. Gforth comes with ABSOLUTELY NO WARRANTY; for details type `license' Type `bye' to exit 7 4 + . 11 ok hex ok 7 4 + . B ok 7 4 + ok 2 base ! ok . 1011 ok The dot . prints the value on the top of the stack. In Python terms, the closest equivalent would be: print (7 + 4) # prints 11 by default # set the base to hex print (7 + 4) # prints B x = 7 + 4 # set the base to 2 print (x) # prints 1011 except that Python doesn't allow you to change the base used by ints, it is always decimal. In Forth, however, setting the base doesn't just change the *display* of integers, it also changes how you enter them: 3 :7: Undefined word >>>3<<< Backtrace: $B7252EDC throw $B725F638 no.extensions $B7253054 interpreter-notfound1 ok So in base 2 mode, it doesn't recognise 3 as a number. If I want to enter three, I have to enter it in binary: 11 ok decimal ok . 3 ok > Integers are internally assumed to be base 10 otherwise you could not > calculate without giving the base. That is *absolutely not* the case in Forth. It's not even the case in Python: integers are actually stored in either binary (base 2) or some very large base, I think equivalent to base 256, depending on the version of Python and the size of the int. > All operations on integers addition, subtraction, multiplication and > division assume base 10. That's just ridiculous. In Python, like most other languages, the only thing which assumes base 10 is entry and printing of integers. -- Steven -- https://mail.python.org/mailman/listinfo/python-list
