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Disable spurious gcc warning in `xfunction::broadcast_shape` by hsanzg · Pull Request #2816 · xtensor-stack/xtensor · GitHub

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Disable spurious gcc warning in xfunction::broadcast_shape #2816

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Disable spurious gcc warning in xfunction::broadcast_shape #2816

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8 changes: 7 additions & 1 deletion include/xtensor/xfunction.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -397,7 +397,7 @@ namespace xt

tuple_type m_e;
functor_type m_f;
mutable xfunction_cache<detail::promote_index<typename std::decay_t<CT>::shape_type...>> m_cache;
mutable xfunction_cache<detail::promote_index<typename std::decay_t<CT>::shape_type...>> m_cache{};

friend class xfunction_iterator<F, CT...>;
friend class xfunction_stepper<F, CT...>;
Expand Down Expand Up @@ -721,7 +721,13 @@ namespace xt
{
if (m_cache.is_initialized && reuse_cache)
{
// Disable spurious warning when copying into a 1-sized `std::array`
// in gcc >= 12.4.0; see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107852
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Warray-bounds"
#pragma GCC diagnostic ignored "-Wstringop-overflow"
std::copy(m_cache.shape.cbegin(), m_cache.shape.cend(), shape.begin());
#pragma GCC diagnostic pop
return m_cache.is_trivial;
}
else
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