29 lines
795 B
ReStructuredText
29 lines
795 B
ReStructuredText
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.. title:: clang-tidy - llvmlibc-callee-namespace
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llvmlibc-callee-namespace
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====================================
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Checks all calls resolve to functions within correct namespace.
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.. code-block:: c++
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// Implementation inside the LIBC_NAMESPACE namespace.
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// Correct if:
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// - LIBC_NAMESPACE is a macro
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// - LIBC_NAMESPACE expansion starts with `__llvm_libc`
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namespace LIBC_NAMESPACE {
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// Allow calls with the fully qualified name.
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LIBC_NAMESPACE::strlen("hello");
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// Allow calls to compiler provided functions.
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(void)__builtin_abs(-1);
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// Bare calls are allowed as long as they resolve to the correct namespace.
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strlen("world");
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// Disallow calling into functions in the global namespace.
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::strlen("!");
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} // namespace LIBC_NAMESPACE
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