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operator == on vectors

Jorgen Grahn <grahn+nntp@snipabacken.se>: Jun 16 02:32AM On Tue, 2016-06-14, 嘱 Tiib wrote: > What is correct by those "conventions"? Is it 'vector::get_allocator()' or > 'vector::allocator()'? Is it 'vector::capacity()' or 'vector::get_capacity()'? > Feels there are no such "conventions".   Let's say "in line with the /lack/ of naming conventions", then.   > programming language therefore usage of word that is both verb and > adjective ('empty') for function name in meaning of that adjective is > misleading. Frank way of naming such function would be 'is_empty'.   There doesn't seem to be a lot of is_adjective() in the standard library, though. Except in <type_traits>.   ... > if (foobar.size() != 0) ... // the reality   > I suspect that it is so (at least partially) because 'empty' is such a > bad name. ;-)   I think that if people write such code, it's because they usually want the negation -- my "hard to spot the !" argument.   I don't think I've seen size() used that way. Maybe I've been lucky. I have sometimes been tempted to write such code myself, but after an incident with std::list (where size() at least /might/ be O(n)) I hesitate to ask for more information than I'm really going to need.   /Jorgen   -- // Jorgen Grahn <grahn@ Oo o. . . \X/ snipabacken.se> O o .

Jorgen Grahn <grahn+nntp@snipabacken.se>: Jun 16 02:42AM On Tue, 2016-06-14, Wouter van Ooijen wrote:   [ÖT] > contains a verb like is, has, contains, includes, etc.   > The other function (the one that makes something empty) should probably > be called make_empty().   But still, the C++ containers have a different convention:   bool empty() const; void clear();   For better or worse, I've adopted that convention. If I write a container-like class and need that feature, I'll use those names. I probably would even if I objected to them more than I do.   /Jorgen   -- // Jorgen Grahn <grahn@ Oo o. . . \X/ snipabacken.se> O o .

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