
[module.unit]p1 specifies that module and import are invalid components of a module name, that module names cannot contain reserved identifiers, and that std followed by zero or more digits is reserved. The first issue (module and import pseudo-keywords) requires a diagnostic, the second issue (use of reserved identifiers) does not require a diagnostic. We diagnose both the same -- the code is ill- formed unless the module declaration is in a system "header". This allows STL implementations to use the reserved module names while preventing users from stealing them out from under us. Differential Revision: https://reviews.llvm.org/D136953
7 lines
260 B
C++
7 lines
260 B
C++
// RUN: %clang_cc1 -std=c++20 -fsyntax-only -verify %s
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// expected-no-diagnostics
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// Demonstrate that we don't consider use of 'std' followed by digits to be a
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// reserved identifier if it is not the first part of the path.
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export module should_succeed.std0;
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