Opened 15 years ago
Closed 12 years ago
#1623 closed Feature Requests (fixed)
fusion needs a reverse_fold algorithm
| Reported by: | Eric Niebler | Owned by: | Christopher Schmidt |
|---|---|---|---|
| Milestone: | Boost 1.44.0 | Component: | fusion |
| Version: | Boost Development Trunk | Severity: | Optimization |
| Keywords: | Cc: |
Description
I can fold a reverse_view, but that's a little awkward, and TMP-heavy. That is, it instantiates more templates than are needed. Would be nice if Fusion had a reverse_fold algorithm, like MPL.
This is needed for Proto, which has a reverse_fold transform based in part on fusion::fold and reverse_view. I've had to introduce ugly PP metaprogramming to avoid calling fusion::fold because of the long compile times.
Change History (2)
comment:1 by , 12 years ago
| Milestone: | Boost 1.36.0 → Boost 1.44.0 |
|---|---|
| Owner: | changed from to |
| Status: | new → assigned |
comment:2 by , 12 years ago
| Resolution: | → fixed |
|---|---|
| Status: | assigned → closed |
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Fixed in [63066] and [63083]