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* [binutils-gdb] gdbsupport: use result_of_t instead of result_of in parallel-for.h
@ 2022-04-12 18:10 Simon Marchi
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From: Simon Marchi @ 2022-04-12 18:10 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=a09520cdd91a87ada081b065c42256bec2be6946
commit a09520cdd91a87ada081b065c42256bec2be6946
Author: Simon Marchi <simon.marchi@efficios.com>
Date: Tue Apr 12 12:30:08 2022 -0400
gdbsupport: use result_of_t instead of result_of in parallel-for.h
When building with -std=c++11, I get:
In file included from /home/smarchi/src/binutils-gdb/gdb/unittests/parallel-for-selftests.c:22: /home/smarchi/src/binutils-gdb/gdb/../gdbsupport/parallel-for.h:134:10: error: ‘result_of_t’ is not a member of ‘std’; did you mean ‘result_of’?
134 | std::result_of_t<RangeFunction (RandomIt, RandomIt)>
| ^~~~~~~~~~~
| result_of
This is because result_of_t has been introduced in C++14. Use the
equivalent result_of<...>::type instead.
result_of and result_of_t have been removed in C++20 though, so I think
we'll need some patches eventually to make the code use invoke_result
instead, depending on the C++ version.
Change-Id: I4817f361c0ebcdd4b32976898fc368bb302b61b9
Diff:
---
gdbsupport/parallel-for.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/gdbsupport/parallel-for.h b/gdbsupport/parallel-for.h
index 44303abb716..713ec660306 100644
--- a/gdbsupport/parallel-for.h
+++ b/gdbsupport/parallel-for.h
@@ -131,13 +131,13 @@ private:
template<class RandomIt, class RangeFunction>
typename gdb::detail::par_for_accumulator<
- std::result_of_t<RangeFunction (RandomIt, RandomIt)>
+ typename std::result_of<RangeFunction (RandomIt, RandomIt)>::type
>::result_type
parallel_for_each (unsigned n, RandomIt first, RandomIt last,
RangeFunction callback)
{
- typedef typename std::result_of_t<RangeFunction (RandomIt, RandomIt)>
- result_type;
+ using result_type
+ = typename std::result_of<RangeFunction (RandomIt, RandomIt)>::type;
size_t n_threads = thread_pool::g_thread_pool->thread_count ();
size_t n_elements = last - first;
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2022-04-12 18:10 [binutils-gdb] gdbsupport: use result_of_t instead of result_of in parallel-for.h Simon Marchi
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