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Re: OT: Assignment operator (Was: using same variable twice on same page) [message #171360 is a reply to message #171358]

Thu, 30 December 2010 19:45

August Karlstrom
Messages: 16
Registered: October 2010

Karma:

Junior Member

On 2010-12-30 20:21, richard wrote:
> On Thu, 30 Dec 2010 15:35:10 +0100, August Karlstrom wrote:
>> The equal sign `=' has been used in mathematics since medieval times to
>> denote equality. To use `==' for equality and `=' for something else
>> (assignment) is not sensible.
>
> Not really. As in various programming languages dictate, usage and display
> can be quite different.
>
> In BASIC and simpler low level languages, we say<>, meaning "not equal"
> while in the higher level languages we say, !=.

The symbols `/=' and `#' are also used in some high-level languages. It
is unfortunate that the not-equal-to sign is neither on a standard
keyboard nor in the 7-bit ASCII table. As a general guideline, however,
I don't think language designers should redefine the meaning of well
known symbols from mathematics. Or why not let `+' be the
increment-by-one operator and `++' denote addition? Why not? After all,
as Jerry Stuckle mentioned, programming is not mathematics.

/August

--
The competent programmer is fully aware of the limited size of his own
skull. He therefore approaches his task with full humility, and avoids
clever tricks like the plague. --Edsger Dijkstra

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[Message index]

		using same variable twice on same page By: richard on Wed, 29 December 2010 05:07
		Re: using same variable twice on same page By: Adrienne Boswell on Wed, 29 December 2010 06:56
		Re: using same variable twice on same page By: Thomas 'PointedEars' on Wed, 29 December 2010 11:25
		Re: using same variable twice on same page By: Jerry Stuckle on Wed, 29 December 2010 13:19
		Re: using same variable twice on same page By: Evan Platt on Wed, 29 December 2010 15:10
		Re: using same variable twice on same page By: Denis McMahon on Wed, 29 December 2010 15:21
		Re: using same variable twice on same page By: Jerry Stuckle on Wed, 29 December 2010 17:11
		Re: using same variable twice on same page By: richard on Wed, 29 December 2010 16:02
		Re: using same variable twice on same page By: Thomas 'PointedEars' on Wed, 29 December 2010 16:44
		Re: using same variable twice on same page By: Evan Platt on Wed, 29 December 2010 16:59
		Re: using same variable twice on same page By: Derek Turner on Wed, 29 December 2010 10:42
		Re: using same variable twice on same page By: August Karlstrom on Thu, 30 December 2010 01:07
		Re: using same variable twice on same page By: Thomas 'PointedEars' on Thu, 30 December 2010 01:31
		Re: using same variable twice on same page By: Jerry Stuckle on Thu, 30 December 2010 04:47
		OT: Assignment operator (Was: using same variable twice on same page) By: August Karlstrom on Thu, 30 December 2010 14:35
		Re: OT: Assignment operator (Was: using same variable twice on same page) By: Jerry Stuckle on Thu, 30 December 2010 15:57
		Re: OT: Assignment operator (Was: using same variable twice on same page) By: Jim Higgins on Thu, 30 December 2010 18:36
		Re: OT: Assignment operator (Was: using same variable twice on same page) By: sheldonlg on Wed, 12 January 2011 15:50
		Re: OT: Assignment operator (Was: using same variable twice on same page) By: richard on Thu, 30 December 2010 19:21
		Re: OT: Assignment operator (Was: using same variable twice on same page) By: August Karlstrom on Thu, 30 December 2010 19:45
		Re: OT: Assignment operator (Was: using same variable twice on same page) By: sheldonlg on Wed, 12 January 2011 15:53
		Re: OT: Assignment operator (Was: using same variable twice on same page) By: Norman Peelman on Thu, 30 December 2010 23:43
		Re: OT: Assignment operator (Was: using same variable twice on same page) By: The Natural Philosoph on Fri, 31 December 2010 02:07
		Re: OT: Assignment operator (Was: using same variable twice on same page) By: August Karlstrom on Fri, 31 December 2010 10:14
		Re: OT: Assignment operator (Was: using same variable twice on same page) By: The Natural Philosoph on Fri, 31 December 2010 10:47
		Re: OT: Assignment operator (Was: using same variable twice on same page) By: Jim Higgins on Fri, 31 December 2010 16:12
		Re: OT: Assignment operator (Was: using same variable twice on same page) By: me on Fri, 31 December 2010 16:33
		Re: OT: Assignment operator (Was: using same variable twice on same page) By: sheldonlg on Wed, 12 January 2011 15:57
		Re: OT: Assignment operator By: Sherm Pendley on Wed, 12 January 2011 16:05
		Re: OT: Assignment operator By: spambait on Wed, 12 January 2011 18:43
		Re: OT: Assignment operator By: spambait on Wed, 12 January 2011 18:47
		Re: OT: Assignment operator By: sheldonlg on Wed, 12 January 2011 23:14
		Re: OT: Assignment operator (Was: using same variable twice on same page) By: Jim Higgins on Wed, 12 January 2011 20:28
		Re: using same variable twice on same page By: The Natural Philosoph on Thu, 30 December 2010 09:26
		Re: using same variable twice on same page By: Tim Streater on Thu, 30 December 2010 10:13
		Re: using same variable twice on same page By: Jerry Stuckle on Thu, 30 December 2010 13:05
		Re: using same variable twice on same page By: The Natural Philosoph on Fri, 31 December 2010 01:57
		Re: using same variable twice on same page By: Tim Streater on Fri, 31 December 2010 09:57
		Re: using same variable twice on same page By: sheldonlg on Wed, 12 January 2011 15:54
		Re: using same variable twice on same page By: Peter H. Coffin on Thu, 30 December 2010 13:35
		Re: using same variable twice on same page By: The Natural Philosoph on Fri, 31 December 2010 01:59
		Re: using same variable twice on same page By: Jerry Stuckle on Wed, 29 December 2010 13:21
		Re: using same variable twice on same page By: Captain Paralytic on Wed, 29 December 2010 14:15
		Re: using same variable twice on same page By: Jerry Stuckle on Wed, 29 December 2010 15:00
		Re: using same variable twice on same page By: Derek Turner on Wed, 29 December 2010 17:22
		Re: using same variable twice on same page By: Luuk on Wed, 29 December 2010 15:05
		Re: using same variable twice on same page By: spambait on Wed, 05 January 2011 01:10
		Re: using same variable twice on same page By: richard on Wed, 29 December 2010 15:57
		Re: using same variable twice on same page By: Captain Paralytic on Wed, 29 December 2010 16:53
		Re: using same variable twice on same page By: Jerry Stuckle on Wed, 29 December 2010 17:21
		Re: using same variable twice on same page By: Captain Paralytic on Wed, 29 December 2010 18:00
		Re: using same variable twice on same page By: Derek Turner on Wed, 29 December 2010 17:44
		Re: using same variable twice on same page By: Denis McMahon on Wed, 29 December 2010 15:02
		Re: using same variable twice on same page By: Denis McMahon on Wed, 29 December 2010 15:15
		Re: using same variable twice on same page By: Tim Streater on Wed, 29 December 2010 22:53
		Re: using same variable twice on same page By: Captain Paralytic on Wed, 29 December 2010 23:05
		Re: using same variable twice on same page By: The Natural Philosoph on Thu, 30 December 2010 09:24
		Re: using same variable twice on same page By: spambait on Wed, 05 January 2011 01:00

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