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Bugfix: Fixed span reinterpret_as should return fixed span (#1210)

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* Fixed span reinterpret should also return fixed span

* Use auto instead of CTAD
This commit is contained in:
mike919192 2025-11-29 04:41:54 -05:00 committed by GitHub
parent b6e78b7c9c
commit 81a643b9b5
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2 changed files with 6 additions and 6 deletions
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4
include/etl/span.h
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@ -561,11 +561,11 @@ namespace etl
/// Reinterpret the span as a span with different element type.
//*************************************************************************
template<typename TNew>
ETL_NODISCARD ETL_CONSTEXPR14 etl::span<TNew, etl::dynamic_extent> reinterpret_as() const
ETL_NODISCARD ETL_CONSTEXPR14 etl::span<TNew, Extent * sizeof(element_type) / sizeof(TNew)> reinterpret_as() const
{
ETL_ASSERT(etl::is_aligned<etl::alignment_of<TNew>::value>(pbegin), ETL_ERROR(span_alignment_exception));
return etl::span<TNew, etl::dynamic_extent>(reinterpret_cast<TNew*>(pbegin),
return etl::span<TNew, Extent * sizeof(element_type) / sizeof(TNew)>(reinterpret_cast<TNew*>(pbegin),
Extent * sizeof(element_type) / sizeof(TNew));
}

8
test/test_span_fixed_extent.cpp
View File

@ -1223,7 +1223,7 @@ namespace
uint8_t data[] = { 0x01, 0x02, 0x03, 0x04, 0x05 };
etl::span<uint8_t, 5> data0 = data;
etl::span<etl::be_uint16_t> data1 = data0.reinterpret_as<etl::be_uint16_t>();
auto data1 = data0.reinterpret_as<etl::be_uint16_t>();
CHECK_EQUAL(data1.size(), 2);
CHECK(data1[0] == 0x102);
@ -1237,13 +1237,13 @@ namespace
etl::span<uint32_t, 3> data0 = data;
CHECK_EQUAL(data0.size(), 3);
etl::span<uint8_t> data1 = data0.reinterpret_as<uint8_t>();
auto data1 = data0.reinterpret_as<uint8_t>();
CHECK_EQUAL(data1.size(), 12);
etl::span<uint16_t> data2 = data1.subspan(2).reinterpret_as<uint16_t>();
auto data2 = data1.subspan<2>().reinterpret_as<uint16_t>();
CHECK_EQUAL(data2.size(), 5);
CHECK_THROW(data2 = data1.subspan(1).reinterpret_as<uint16_t>(), etl::span_alignment_exception);
CHECK_THROW(data2 = data1.subspan<1>().reinterpret_as<uint16_t>(), etl::span_alignment_exception);
}
//*************************************************************************