[linalg.algs.blas1.iamax] Fix return type of vector_idx_abs_max#9140
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The declarations use extents_type (a std::extents shape type), but the Returns clause specifies a scalar index of type size_type. Replace extents_type with size_type in [linalg.syn] and [linalg.algs.blas1.iamax].
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This fixes a misapplication of https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2023/p1673r13.html#index-of-maximum-absolute-value-of-vector-elements-linalg.algs.blas1.iamax #6704 got the return type wrong. |
eisenwave
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jwakely
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Jun 16, 2026
jensmaurer
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Jun 16, 2026
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Thanks a lot! |
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The declarations of
vector_idx_abs_maxin[linalg.syn]and[linalg.algs.blas1.iamax]useextents_type(astd::extentsshape type) as the return type, but the Returns clause specifies a scalar index of typesize_type. Replaceextents_typewithsize_typein all four declaration sites.