Fix regression in #3710 (#3968)

Regression introduced in 11f2f30
Already have a test for this, but needed to make __cpp_lib_ranges
smaller to enable it
This commit is contained in:
Justin Riddell 2024-05-23 20:39:11 +01:00 committed by GitHub
parent b81761068b
commit fc723fd6c7
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2 changed files with 3 additions and 2 deletions

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@ -495,7 +495,8 @@ struct range_formatter<
for (; it != end; ++it) {
if (i > 0) out = detail::copy<Char>(separator_, out);
ctx.advance_to(out);
out = underlying_.format(mapper.map(*it), ctx);
auto&& item = *it; // Need an lvalue
out = underlying_.format(mapper.map(item), ctx);
++i;
}
out = detail::copy<Char>(closing_bracket_, out);

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@ -506,7 +506,7 @@ TEST(ranges_test, format_join_adl_begin_end) {
#endif // FMT_RANGES_TEST_ENABLE_JOIN
#if defined(__cpp_lib_ranges) && __cpp_lib_ranges >= 202302L
#if defined(__cpp_lib_ranges) && __cpp_lib_ranges >= 202207L
TEST(ranges_test, nested_ranges) {
auto l = std::list{1, 2, 3};
auto r = std::views::iota(0, 3) | std::views::transform([&l](auto i) {