René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"wrong result when using std::view::zip","articleBody":"Here is my code compiled with option -std=c++23, gcc 14.2:\r\n```c++\r\n#include \"timsort.hpp\"\r\n#include \u003carray\u003e\r\n#include \u003ciostream\u003e\r\n#include \u003ctuple\u003e\r\n#include \u003cvector\u003e\r\n\r\nint main() {\r\n  auto x = std::vector{4, 2, 3, 1};\r\n  auto y = std::array{'A', 'C', 'B', 'D'};\r\n  auto xy = std::views::zip(x, y);\r\n\r\n  gfx::timsort(xy, {},\r\n   [](const std::tuple\u003cint \u0026, char \u0026\u003e \u0026a) {\r\n    return std::get\u003c0\u003e(a);\r\n  });\r\n\r\n  for (std::tuple\u003cint \u0026, char \u0026\u003e elem : xy) {\r\n    std::cout \u003c\u003c std::get\u003c0\u003e(elem) \u003c\u003c ' ' \u003c\u003c std::get\u003c1\u003e(elem) \u003c\u003c ' ' \u003c\u003c '\\n';\r\n  }\r\n}\r\n```\r\nExpected result is:\r\n```\r\n1 D \r\n2 C \r\n3 B \r\n4 A\r\n```\r\nHowever, I got\r\n```\r\n4 A \r\n2 C \r\n4 A \r\n4 A \r\n```\r\n","author":{"url":"https://github.com/yuanzihao-1991","@type":"Person","name":"yuanzihao-1991"},"datePublished":"2024-11-28T12:48:23.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/40/cpp-TimSort/issues/40"}