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-rw-r--r--test/CXX/expr/expr.prim/expr.prim.lambda/p11-1y.cpp77
1 files changed, 77 insertions, 0 deletions
diff --git a/test/CXX/expr/expr.prim/expr.prim.lambda/p11-1y.cpp b/test/CXX/expr/expr.prim/expr.prim.lambda/p11-1y.cpp
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index 0000000..6be200d
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+++ b/test/CXX/expr/expr.prim/expr.prim.lambda/p11-1y.cpp
@@ -0,0 +1,77 @@
+// RUN: %clang_cc1 -std=c++1y %s -verify
+
+const char *has_no_member = [x("hello")] {}.x; // expected-error {{no member named 'x'}}
+
+double f;
+auto with_float = [f(1.0f)] {
+ using T = decltype(f);
+ using T = float;
+};
+auto with_float_2 = [&f(f)] { // ok, refers to outer f
+ using T = decltype(f);
+ using T = double&;
+};
+
+// Within the lambda-expression's compound-statement,
+// the identifier in the init-capture hides any declaration
+// of the same name in scopes enclosing the lambda-expression.
+void hiding() {
+ char c;
+ (void) [c("foo")] {
+ static_assert(sizeof(c) == sizeof(const char*), "");
+ };
+ (void) [c("bar")] () -> decltype(c) { // outer c, not init-capture
+ return "baz"; // expected-error {{cannot initialize}}
+ };
+}
+
+struct ExplicitCopy {
+ ExplicitCopy(); // expected-note 2{{not viable}}
+ explicit ExplicitCopy(const ExplicitCopy&);
+};
+auto init_kind_1 = [ec(ExplicitCopy())] {};
+auto init_kind_2 = [ec = ExplicitCopy()] {}; // expected-error {{no matching constructor}}
+
+template<typename T> void init_kind_template() {
+ auto init_kind_1 = [ec(T())] {};
+ auto init_kind_2 = [ec = T()] {}; // expected-error {{no matching constructor}}
+}
+template void init_kind_template<int>();
+template void init_kind_template<ExplicitCopy>(); // expected-note {{instantiation of}}
+
+void void_fn();
+int overload_fn();
+int overload_fn(int);
+
+auto bad_init_1 = [a()] {}; // expected-error {{expected expression}}
+auto bad_init_2 = [a(1, 2)] {}; // expected-error {{initializer for lambda capture 'a' contains multiple expressions}}
+auto bad_init_3 = [&a(void_fn())] {}; // expected-error {{cannot form a reference to 'void'}}
+auto bad_init_4 = [a(void_fn())] {}; // expected-error {{has incomplete type 'void'}}
+auto bad_init_5 = [a(overload_fn)] {}; // expected-error {{cannot deduce type for lambda capture 'a' from initializer of type '<overloaded function}}
+auto bad_init_6 = [a{overload_fn}] {}; // expected-error {{cannot deduce type for lambda capture 'a' from initializer list}}
+
+template<typename...T> void pack_1(T...t) { (void)[a(t...)] {}; } // expected-error {{initializer missing for lambda capture 'a'}}
+template void pack_1<>(); // expected-note {{instantiation of}}
+
+// FIXME: Might need lifetime extension for the temporary here.
+// See DR1695.
+auto a = [a(4), b = 5, &c = static_cast<const int&&>(0)] {
+ static_assert(sizeof(a) == sizeof(int), "");
+ static_assert(sizeof(b) == sizeof(int), "");
+ using T = decltype(c);
+ using T = const int &;
+};
+auto b = [a{0}] {}; // expected-error {{include <initializer_list>}}
+
+struct S { S(); S(S&&); };
+template<typename T> struct remove_reference { typedef T type; };
+template<typename T> struct remove_reference<T&> { typedef T type; };
+template<typename T> decltype(auto) move(T &&t) { return static_cast<typename remove_reference<T>::type&&>(t); }
+auto s = [s(move(S()))] {};
+
+template<typename T> T instantiate_test(T t) {
+ [x(&t)]() { *x = 1; } (); // expected-error {{assigning to 'const char *'}}
+ return t;
+}
+int instantiate_test_1 = instantiate_test(0);
+const char *instantiate_test_2 = instantiate_test("foo"); // expected-note {{here}}
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