| Issue |
89591
|
| Summary |
libstdc++ sort does not work... well
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
kelbon
|
Recently I wanted to sort 2 separate arrays, one with the keys, the other with their corresponding values. A year ago this worked (iota } transform (tie(key, value)) + sort), but now, after improvements and corrections to the standard, this is no longer possible.
But during the implementation process I discovered bugs/oddities in the libstd++ standard library:
1. even if range is std::sortable, stable_sort may be throw compilation error:
https://godbolt.org/z/M8hWz1G7W
This error may be even worse if you use 'size_t' indexes:
https://godbolt.org/z/nzqqPWhd3
2. std::make_unsignedhas no specialization for __int128_t, but it is used:
https://godbolt.org/z/GPa9E4h5a
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