Timeline for Linked list with iterators
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
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| Oct 17, 2018 at 16:41 | comment | added | Toby Speight |
There's nothing that forbids operator+() - it's merely not required (and it won't get used by generic algorithms).
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| Jul 2, 2014 at 20:26 | comment | added | TemplateRex |
only the semantics of a!=b should be !(a==b), not the actual implementation. You could equally define a==b as !(a!=b)
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| Jul 2, 2014 at 19:45 | comment | added | vnp | You are asking a very valid question. A short answer is that equality is fundamental. A long answer would explain what fundamental really means, and it is a topic for a very long conversation. Again, Stepanov addresses it constantly, and explains it better than I'd ever hope to. | |
| Jul 2, 2014 at 19:39 | comment | added | Beta | I agree that one should be defined as the negation of the other (for at least three reasons), and I tend to write op== first and then define op!= in terms of it, as a matter of style, but why "must" it be that way? Apart from awkwardness, what's wrong with defining op!= first and then negating it to get op==? | |
| Jul 2, 2014 at 19:12 | comment | added | vnp | @Beta Briefly: a "not equal" relation is a negation of an "equal" relation, by definition. An attempt to define it in any other way is wrong. A very interesting discussion is in Programming Conversations 11 (part 2 specifically). However I highly recommend all of them. | |
| Jul 2, 2014 at 18:10 | comment | added | Beta | I find it hard to believe that a good reason could not be stated briefly enough to fit here, but could you at least tell us which video? | |
| Jul 2, 2014 at 17:07 | comment | added | vnp | I can't quote a video here, sorry. Alex Stepanov goes deep on the topic in his lectures at youtube.com/user/A9Videos/videos | |
| Jul 2, 2014 at 13:08 | comment | added | Jerry Coffin |
[citation needed] for the requirement that operator != be implemented as a negation of operator==.
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| Jul 2, 2014 at 7:49 | history | edited | vnp | CC BY-SA 3.0 |
added 29 characters in body
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| Jul 2, 2014 at 7:32 | history | answered | vnp | CC BY-SA 3.0 |