* [committed] libstdc++: Implement LWG 3490 change to drop_while_view::begin()
@ 2021-05-21 4:07 Patrick Palka
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From: Patrick Palka @ 2021-05-21 4:07 UTC (permalink / raw)
To: gcc-patches; +Cc: libstdc++, Patrick Palka
Tested on x86_64-pc-linux-gnu, committed to trunk as obvious.
libstdc++-v3/ChangeLog:
PR libstdc++/100606
* include/std/ranges (drop_while_view::begin): Assert the
precondition added by LWG 3490.
---
libstdc++-v3/include/std/ranges | 1 +
1 file changed, 1 insertion(+)
diff --git a/libstdc++-v3/include/std/ranges b/libstdc++-v3/include/std/ranges
index 767a65c5822..76add252ca6 100644
--- a/libstdc++-v3/include/std/ranges
+++ b/libstdc++-v3/include/std/ranges
@@ -2190,6 +2190,7 @@ namespace views::__adaptor
if (_M_cached_begin._M_has_value())
return _M_cached_begin._M_get(_M_base);
+ __glibcxx_assert(_M_pred.has_value());
auto __it = __detail::find_if_not(ranges::begin(_M_base),
ranges::end(_M_base),
std::cref(*_M_pred));
--
2.32.0.rc0
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2021-05-21 4:07 [committed] libstdc++: Implement LWG 3490 change to drop_while_view::begin() Patrick Palka
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