3eac45a2a1
This adds a conditional noexcept to the C++20 constructor. The
std::to_address call cannot throw, so only taking the difference of the
two iterators can throw.
Signed-off-by: Jonathan Wakely <jwakely@redhat.com>
libstdc++-v3/ChangeLog:
* include/std/string_view (basic_string_view(It, End)): Add
noexcept-specifier.
* testsuite/21_strings/basic_string_view/cons/char/range.cc:
Check noexcept-specifier. Also check construction without CTAD.
(cherry picked from commit
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