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Editorial Team
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Asked: 2026-05-29T07:44:11+00:00

Must a conforming C++ Standard Library Implementation be implemented in C++? If not, is

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  1. Must a conforming C++ Standard Library Implementation be implemented in C++?
  2. If not, is it allowed to do magic things that are not doable in pure C++ & Standard Library & some implementation defined behaviour?
  • I am aware that there are parallel implementations that rely on extensions (in pre C++11 at least), but are they really conforming?
  • I couldn’t find any requirement in the standard, but maybe my standard-fu is weak today
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1 Answer

  1. Editorial Team

    No.

    Actually, it is even prescribed by the Standard that #include <map> (for example) could simply import a pre-stored AST and not refer to a file, at all.

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