June 27, 2017 [Issue 15982] std.array.array treats dynamic arrays as input ranges and allocates new memory | ||||
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https://issues.dlang.org/show_bug.cgi?id=15982 Vladimir Panteleev <dlang-bugzilla@thecybershadow.net> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |dlang-bugzilla@thecybershad | |ow.net Resolution|--- |WONTFIX --- Comment #11 from Vladimir Panteleev <dlang-bugzilla@thecybershadow.net> --- As discussed above, std.array.array currently guarantees that the data it returns is unique. This guarantee in turn allows some assumptions, such as that writing to the result will not have side effects, that it is safe to pass to other parts of the program, or even delete it. I suppose that if the array were to point to immutable elements, avoiding reallocation might be worth considering; though, currently, even .idup will duplicate an immutable array. As it is, this issue is missing a use case, and it will probably need to be a compelling one to warrant changing the function's contract and risking code breakage. Other than that... well, if you don't want your array reallocated, then just don't call array()? Please reopen if you have a good argument why this should be changed despite the above. -- |
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