70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
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// RUN: %clang_cc1 -std=c++1z -ast-print %s > %t
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// RUN: FileCheck < %t %s -check-prefix=CHECK1
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// RUN: FileCheck < %t %s -check-prefix=CHECK2
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// RUN: %clang_cc1 -std=c++1z -ast-dump %s | FileCheck --check-prefix=DUMP %s
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template <int X, typename Y, int Z = 5>
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struct foo {
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int constant;
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foo() {}
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Y getSum() { return Y(X + Z); }
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};
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template <int A, typename B>
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B bar() {
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return B(A);
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}
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void baz() {
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int x = bar<5, int>();
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int y = foo<5, int>().getSum();
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double z = foo<2, double, 3>().getSum();
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}
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// Template definition - foo
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// CHECK1: template <int X, typename Y, int Z = 5> struct foo {
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// CHECK2: template <int X, typename Y, int Z = 5> struct foo {
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// Template instantiation - foo
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// Since the order of instantiation may vary during runs, run FileCheck twice
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// to make sure each instantiation is in the correct spot.
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// CHECK1: template<> struct foo<5, int, 5> {
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// CHECK2: template<> struct foo<2, double, 3> {
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// Template definition - bar
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// CHECK1: template <int A, typename B> B bar()
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// CHECK2: template <int A, typename B> B bar()
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// Template instantiation - bar
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// CHECK1: template<> int bar<5, int>()
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// CHECK2: template<> int bar<5, int>()
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// CHECK1-LABEL: template <typename ...T> struct A {
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// CHECK1-NEXT: template <T ...x[3]> struct B {
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template <typename ...T> struct A {
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template <T ...x[3]> struct B {};
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};
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// CHECK1-LABEL: template <typename ...T> void f(T ...[3]) {
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// CHECK1-NEXT: A<T [3]...> a;
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template <typename ...T> void f(T ...[3]) {
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A<T [3]...> a;
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}
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namespace test2 {
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void func(int);
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void func(float);
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template<typename T>
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void tmpl() {
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func(T());
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}
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// DUMP: UnresolvedLookupExpr {{.*}} <col:3> '<overloaded function type>' lvalue (ADL) = 'func'
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}
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namespace test3 {
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template<typename T> struct A {};
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template<typename T> A(T) -> A<int>;
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// CHECK1: template <typename T> A(T) -> A<int>;
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}
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