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// Test this without pch.
// RUN: %clang_cc1 -std=c++17 -triple %itanium_abi_triple -fcxx-exceptions -fexceptions -include %S/cxx-templates.h -verify %s
// RUN: %clang_cc1 -std=c++17 -triple %itanium_abi_triple -fcxx-exceptions -fexceptions -include %S/cxx-templates.h %s -emit-llvm -o - -DNO_ERRORS | FileCheck %s
// Test with pch.
// RUN: %clang_cc1 -std=c++17 -triple %itanium_abi_triple -fcxx-exceptions -fexceptions -x c++-header -emit-pch -o %t %S/cxx-templates.h
// RUN: %clang_cc1 -std=c++17 -triple %itanium_abi_triple -fcxx-exceptions -fexceptions -include-pch %t -verify %s
// RUN: %clang_cc1 -std=c++17 -triple %itanium_abi_triple -fcxx-exceptions -fexceptions -include-pch %t %s -emit-llvm -o - -error-on-deserialized-decl doNotDeserialize -DNO_ERRORS | FileCheck %s
// Test with modules.
// RUN: %clang_cc1 -std=c++17 -triple %itanium_abi_triple -fcxx-exceptions -fexceptions -fmodules -x c++-header -emit-pch -o %t %S/cxx-templates.h
// RUN: %clang_cc1 -std=c++17 -triple %itanium_abi_triple -fcxx-exceptions -fexceptions -fmodules -include-pch %t -verify %s
// RUN: %clang_cc1 -std=c++17 -triple %itanium_abi_triple -fcxx-exceptions -fexceptions -fmodules -include-pch %t %s -emit-llvm -o - -error-on-deserialized-decl doNotDeserialize -DNO_ERRORS -fmodules-ignore-macro=NO_ERRORS | FileCheck %s
// Test with pch and delayed template parsing.
// RUN: %clang_cc1 -std=c++17 -triple %itanium_abi_triple -fcxx-exceptions -fdelayed-template-parsing -fexceptions -x c++-header -emit-pch -o %t %S/cxx-templates.h
// RUN: %clang_cc1 -std=c++17 -triple %itanium_abi_triple -fcxx-exceptions -fdelayed-template-parsing -fexceptions -include-pch %t -verify %s
// RUN: %clang_cc1 -std=c++17 -triple %itanium_abi_triple -fcxx-exceptions -fdelayed-template-parsing -fexceptions -include-pch %t %s -emit-llvm -o - -DNO_ERRORS | FileCheck %s
// CHECK: define weak_odr {{.*}}void @_ZN2S4IiE1mEv
// CHECK: define linkonce_odr {{.*}}void @_ZN2S3IiE1mEv
struct A {
typedef int type;
static void my_f();
template <typename T>
static T my_templf(T x) { return x; }
};
void test(const int (&a6)[17]) {
int x = templ_f<int, 5>(3);
S<char, float>::templ();
S<int, char>::partial();
S<int, float>::explicit_special();
Dep<A>::Ty ty;
Dep<A> a;
a.f();
S3<int> s3;
s3.m();
TS5 ts(0);
S6<const int[17]>::t2 b6 = a6;
}
template struct S4<int>;
S7<int[5]> s7_5;
namespace ZeroLengthExplicitTemplateArgs {
template void f<X>(X*);
}
// This used to overwrite memory and crash.
namespace Test1 {
struct StringHasher {
template<typename T, char Converter(T)> static inline unsigned createHash(const T*, unsigned) {
return 0;
}
};
struct CaseFoldingHash {
static inline char foldCase(char) {
return 0;
}
static unsigned hash(const char* data, unsigned length) {
return StringHasher::createHash<char, foldCase>(data, length);
}
};
}
template< typename D >
Foo< D >& Foo< D >::operator=( const Foo& other )
{
return *this;
}
namespace TestNestedExpansion {
struct Int {
Int(int);
friend Int operator+(Int, Int);
};
Int &g(Int, int, double);
Int &test = NestedExpansion<char, char, char>().f(0, 1, 2, Int(3), 4, 5.0);
}
namespace rdar13135282 {
void test() {
__mt_alloc<> mt = __mt_alloc<>();
}
}
void CallDependentSpecializedFunc(DependentSpecializedFuncClass<int> &x) {
DependentSpecializedFunc(x);
}
namespace cyclic_module_load {
extern std::valarray<int> x;
std::valarray<int> y(x);
}
#ifndef NO_ERRORS
// expected-error@cxx-templates.h:305 {{incomplete}}
template int local_extern::f<int[]>(); // expected-note {{in instantiation of}}
#endif
template int local_extern::g<int[]>();
namespace MemberSpecializationLocation {
#ifndef NO_ERRORS
// expected-note@cxx-templates.h:* {{previous}}
template<> float A<int>::n; // expected-error {{redeclaration of 'n' with a different type}}
#endif
int k = A<int>::n;
}
// https://bugs.llvm.org/show_bug.cgi?id=34728
namespace PR34728 {
int test() {
// Verify with several TemplateParmDecl kinds, using PCH (incl. modules).
int z1 = func1(/*ignored*/2.718);
int z2 = func2(/*ignored*/3.142);
int tmp3 = 30;
Container<int> c = func3(tmp3);
int z3 = c.item;
// Return value is meaningless. Just "use" all these values to avoid
// warning about unused vars / values.
return z1 + z2 + z3;
}
} // end namespace PR34728
namespace ClassScopeExplicitSpecializations {
// FIXME: It's unclear these warnings (and the behavior they're describing)
// are desirable. These explicit instantiations could meaningfully
// instantiate the explicit specializations defined in the primary template.
template int A<3>::f<0>() const; // expected-warning {{has no effect}}
template int A<3>::f<1>() const;
template int A<4>::f<0>() const; // expected-warning {{has no effect}}
template int A<4>::f<1>() const;
// expected-note@cxx-templates.h:403 2{{here}}
static_assert(A<0>().f<0>() == 4, "");
static_assert(A<0>().f<1>() == 5, "");
static_assert(A<0>().f<2>() == 3, "");
static_assert(A<1>().f<0>() == 2, "");
static_assert(A<1>().f<1>() == 1, "");
static_assert(A<1>().f<2>() == 1, "");
static_assert(A<2>().f<0>() == 2, "");
static_assert(A<2>().f<1>() == 1, "");
static_assert(A<3>().f<0>() == 2, "");
static_assert(A<3>().f<1>() == 1, "");
static_assert(A<4>().f<0>() == 2, "");
static_assert(A<4>().f<1>() == 1, "");
}
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