✨ Add transform_reduce on bitset
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elbeno
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Problem:
- It is relatively common to want to do for_each on a bitset, but also capture
whether or not the action succeeded at all, e.g. when handling a message with
an indexed handler.
Solution:
- Add `transform_reduce` on bitset.
Note:
- Both `for_each` and `transform_reduce` are applicable variadically, however
this is not yet implemented. But this is the reason that the bitset is the
final argument.
- There are some differences (for the better) from the `std::transform_reduce`
API.
- The transform function comes before the reduction function.
`std::transform_reduce` is confusing, because the transform happens first
but is given second.
- The type of the `init` value can be easily given in a template argument;
this is helpful for avoiding warnings when passing `0` (an `int`) to
accumulate potentially larger integral types.
elbeno
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lukevalenty
approved these changes
Feb 11, 2025
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Problem:
Solution:
transform_reduceon bitset.Note:
for_eachandtransform_reduceare applicable variadically, however this is not yet implemented. But this is the reason that the bitset is the final argument.std::transform_reduceAPI.std::transform_reduceis confusing, because the transform happens first but is given second.initvalue can be easily given in a template argument; this is helpful for avoiding warnings when passing0(anint) to accumulate potentially larger integral types.