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c++: extend Wdangling-reference17.C [PR109642]

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This patch extends g++.dg/warn/Wdangling-reference17.C with code
from PR109642.  I'm not creating a new test because this one
already #includes the required headers.

	PR c++/109642

gcc/testsuite/ChangeLog:

	* g++.dg/warn/Wdangling-reference17.C: Additional testing.
This commit is contained in:
Marek Polacek 2024-01-22 16:12:33 -05:00
parent bc77c035c4
commit c596ce0312
1 changed files with 12 additions and 0 deletions
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12
gcc/testsuite/g++.dg/warn/Wdangling-reference17.C
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@ -4,6 +4,7 @@
#include <vector>
#include <ranges>
#include <span>
int main()
{
@ -12,4 +13,15 @@ int main()
{
(void) i;
}
// From c++/109642.
const auto vec = std::vector{ 1, 2, 3 };
const auto s = std::span<decltype(vec)::value_type const>{vec};
for ([[maybe_unused]] auto _ : s | std::views::take(2)) { }
for ([[maybe_unused]] auto _ : vec | std::views::take(2)) { }
const auto s_view = s | std::views::take(2);
for ([[maybe_unused]] auto _ : s_view) { }
}