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Merge pull request #26533 from mshabunin:fix-reduce-test

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test: fix technical issue with min_element in reduce tests
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Alexander Smorkalov 2024-11-27 09:08:01 +03:00 committed by GitHub
commit c8c64f69dd
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1 changed files with 16 additions and 1 deletions
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17
modules/core/test/ref_reduce_arg.impl.hpp
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@ -12,6 +12,21 @@
namespace cvtest { namespace cvtest {
// Standard library (technically) forbids using std::min_element
// with non-strict std::less_equal, so we make our own min_element
template <typename Iter, typename Comp>
Iter custom_min_element(Iter begin, Iter end, Comp cmp_less)
{
if (begin == end)
return begin;
Iter result = begin;
while (++begin != end)
if (cmp_less(*begin, *result))
result = begin;
return result;
}
template <class Cmp, typename T> template <class Cmp, typename T>
struct reduceMinMaxImpl struct reduceMinMaxImpl
{ {
@ -30,7 +45,7 @@ struct reduceMinMaxImpl
cv::Mat sub = src(idx); cv::Mat sub = src(idx);
auto begin = sub.begin<T>(); auto begin = sub.begin<T>();
auto it = std::min_element(begin, sub.end<T>(), cmp); auto it = custom_min_element(begin, sub.end<T>(), cmp);
*dst(idx).ptr<int32_t>() = static_cast<int32_t>(std::distance(begin, it)); *dst(idx).ptr<int32_t>() = static_cast<int32_t>(std::distance(begin, it));
for (int j = static_cast<int>(idx.size()) - 1; j >= 0; --j) for (int j = static_cast<int>(idx.size()) - 1; j >= 0; --j)