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authorFlorian Mayer <fmayer@google.com>2025-10-22 10:55:10 -0700
committerFlorian Mayer <fmayer@google.com>2025-10-22 10:55:10 -0700
commita0abc0af0a0a90878822f8107d70dad6f7cdfc26 (patch)
tree3317f49277cc325327cfe3d9a7be4b6e9bacd0f5 /libcxx/include/__algorithm/generate_n.h
parente8230892228fd3b3e543c869f1238fa199d48bc1 (diff)
parent735b1ad667ac7373c89ccc0f0e757ef418f8f790 (diff)
[𝘀𝗽𝗿] changes introduced through rebaseusers/fmayer/spr/main.wip-smartpointers
Created using spr 1.3.7 [skip ci]
Diffstat (limited to 'libcxx/include/__algorithm/generate_n.h')
-rw-r--r--libcxx/include/__algorithm/generate_n.h13
1 files changed, 7 insertions, 6 deletions
diff --git a/libcxx/include/__algorithm/generate_n.h b/libcxx/include/__algorithm/generate_n.h
index f36403fd0f94..e9da133f0570 100644
--- a/libcxx/include/__algorithm/generate_n.h
+++ b/libcxx/include/__algorithm/generate_n.h
@@ -9,8 +9,10 @@
#ifndef _LIBCPP___ALGORITHM_GENERATE_N_H
#define _LIBCPP___ALGORITHM_GENERATE_N_H
+#include <__algorithm/for_each_n.h>
#include <__config>
-#include <__utility/convert_to_integral.h>
+#include <__functional/identity.h>
+#include <__utility/forward.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
@@ -21,11 +23,10 @@ _LIBCPP_BEGIN_NAMESPACE_STD
template <class _OutputIterator, class _Size, class _Generator>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator
generate_n(_OutputIterator __first, _Size __orig_n, _Generator __gen) {
- typedef decltype(std::__convert_to_integral(__orig_n)) _IntegralSize;
- _IntegralSize __n = __orig_n;
- for (; __n > 0; ++__first, (void)--__n)
- *__first = __gen();
- return __first;
+ using __iter_ref = decltype(*__first);
+ __identity __proj;
+ auto __f = [&](__iter_ref __element) { std::forward<__iter_ref>(__element) = __gen(); };
+ return std::__for_each_n(__first, __orig_n, __f, __proj);
}
_LIBCPP_END_NAMESPACE_STD