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// RUN: rm -fR %t
// RUN: split-file %s %t
// RUN: cd %t
// RUN: %clang_cc1 -verify -w -std=c++20 -fmodule-name=h1.h -emit-header-unit -xc++-user-header h1.h -o h1.pcm
// RUN: %clang_cc1 -verify -w -std=c++20 -fmodule-map-file=module.modulemap -fmodule-file=h1.h=h1.pcm main.cpp -o main.o
//--- module.modulemap
module "h1.h" {
header "h1.h"
export *
}
//--- h0.h
// expected-no-diagnostics
#pragma once
namespace std {
template <class _CharT, class = _CharT, class = _CharT> class basic_string;
namespace pmr {
using string = basic_string<char>;
}
template <class, class, class>
class __attribute__((__preferred_name__(pmr::string))) basic_string;
template <class> class basic_string_view {};
template <class _CharT, class _Traits, class _Allocator> class basic_string {
typedef _CharT value_type;
typedef _Allocator allocator_type;
struct __rep;
public:
template <class _Tp>
basic_string(_Tp) {}
basic_string operator+=(value_type);
};
namespace filesystem {
class path {
typedef char value_type;
value_type preferred_separator;
typedef basic_string<value_type> string_type;
typedef basic_string_view<value_type> __string_view;
template <class _Source> void append(_Source) {
__pn_ += preferred_separator;
}
void __root_directory() { append(string_type(__string_view{})); }
string_type __pn_;
};
} // namespace filesystem
} // namespace std
//--- h1.h
// expected-no-diagnostics
#pragma once
#include "h0.h"
//--- main.cpp
// expected-no-diagnostics
#include "h0.h"
import "h1.h";
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