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More robust C++20 <span> check #8631

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More robust C++20 <span> check #8631

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7158c26
More robust <span> check
cyyever Jun 29, 2025
0d44673
Merge branch 'master' into more_span_check
cyyever Jul 11, 2025
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6 changes: 4 additions & 2 deletions include/flatbuffers/stl_emulation.h
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Original file line number Diff line number Diff line change
Expand Up @@ -47,7 +47,9 @@
// See: https://en.cppreference.com/w/cpp/utility/feature_test
#if defined(__cplusplus) && __cplusplus >= 202002L \
|| (defined(_MSVC_LANG) && _MSVC_LANG >= 202002L)
#define FLATBUFFERS_USE_STD_SPAN 1
#if __has_include(<span>)
#define FLATBUFFERS_USE_STD_SPAN 1
#endif
#endif
#endif // FLATBUFFERS_USE_STD_SPAN

Expand Down Expand Up @@ -321,7 +323,7 @@ namespace internal {
SpanIterator(pointer ptr) : ptr_(ptr) {}
reference operator*() const { return *ptr_; }
pointer operator->() { return ptr_; }
SpanIterator& operator++() { ptr_++; return *this; }
SpanIterator& operator++() { ptr_++; return *this; }
SpanIterator operator++(int) { auto tmp = *this; ++(*this); return tmp; }

friend bool operator== (const SpanIterator& lhs, const SpanIterator& rhs) { return lhs.ptr_ == rhs.ptr_; }
Expand Down