forked from OSchip/llvm-project
71 lines
1.9 KiB
C++
71 lines
1.9 KiB
C++
// RUN: rm -rf %t
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// RUN: mkdir %t
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// RUN: split-file %s %t
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//
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// We need '-fmodules-local-submodule-visibility' to properly test merging when building a module from multiple
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// headers inside the same TU. C++20 mode would imply this flag, but we need it to set it explicitly for C++14.
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//
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// RUN: %clang_cc1 -xc++ -std=c++14 -fmodules -fmodules-local-submodule-visibility -fmodule-name=library \
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// RUN: -emit-module %t/modules.map \
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// RUN: -o %t/module.pcm
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//
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//
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// RUN: %clang_cc1 -xc++ -std=c++14 -fmodules -fmodules-local-submodule-visibility -fmodule-file=%t/module.pcm \
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// RUN: -fmodule-map-file=%t/modules.map \
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// RUN: -fsyntax-only -verify %t/use.cpp
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//
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//--- use.cpp
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#include "var1.h"
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#include "var2.h"
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auto foo = zero<Int>;
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auto bar = zero<int*>;
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auto baz = zero<int>;
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template <class T> constexpr T zero = 0; // expected-error {{redefinition}} expected-note@* {{previous}}
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template <> constexpr Int zero<Int> = {0}; // expected-error {{redefinition}} expected-note@* {{previous}}
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template <class T> constexpr T* zero<T*> = nullptr; // expected-error {{redefinition}} expected-note@* {{previous}}
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template <> constexpr int** zero<int**> = nullptr; // ok, new specialization.
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template <class T> constexpr T** zero<T**> = nullptr; // ok, new partial specilization.
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//--- modules.map
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module "library" {
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export *
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module "var1" {
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export *
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header "var1.h"
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}
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module "var2" {
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export *
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header "var2.h"
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}
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}
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//--- var1.h
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#ifndef VAR1_H
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#define VAR1_H
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template <class T> constexpr T zero = 0;
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struct Int {
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int value;
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};
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template <> constexpr int zero<Int> = {0};
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template <class T> constexpr T* zero<T*> = nullptr;
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#endif // VAR1_H
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//--- var2.h
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#ifndef VAR2_H
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#define VAR2_H
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template <class T> constexpr T zero = 0;
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struct Int {
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int value;
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};
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template <> constexpr int zero<Int> = {0};
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template <class T> constexpr T* zero<T*> = nullptr;
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#endif // VAR2_H
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