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libc++ v17-19 was split into multiple top-level modules, while versions earlier and later had one TLM with submodules.
17 lines
363 B
C++
17 lines
363 B
C++
#include <iostream>
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int main() {
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#if !defined(_LIBCPP_VERSION)
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std::cout << "no libc++ found\n";
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return 1;
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#endif
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// the libc++ module was split into multiple top-level modules in Clang 17,
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// and then re-merged into one module with submodules in Clang 20
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#if _LIBCPP_VERSION >= 170004 && _LIBCPP_VERSION < 200000
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return 0;
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#else
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return 1;
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#endif
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}
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