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-rw-r--r--clang/test/SemaCXX/dependent-auto.cpp59
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diff --git a/clang/test/SemaCXX/dependent-auto.cpp b/clang/test/SemaCXX/dependent-auto.cpp
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+// RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++11
+
+template<typename T>
+struct only {
+ only(T);
+ template<typename U> only(U) = delete; // expected-note {{here}}
+};
+
+template<typename ...T>
+void f(T ...t) {
+ auto x(t...); // expected-error {{is empty}} expected-error {{contains multiple expressions}}
+ only<int> check = x;
+}
+
+void g() {
+ f(); // expected-note {{here}}
+ f(0);
+ f(0, 1); // expected-note {{here}}
+}
+
+
+template<typename T>
+bool h(T t) {
+ auto a = t;
+ decltype(a) b;
+ a = a + b;
+
+ auto p = new auto(t);
+
+ only<double*> test = p; // expected-error {{conversion function from 'char *' to 'only<double *>'}}
+ return p;
+}
+
+bool b = h('x'); // expected-note {{here}}
+
+// PR 9276 - Make sure we check auto types deduce the same
+// in the case of a dependent initializer
+namespace PR9276 {
+ template<typename T>
+ void f() {
+ auto i = T(), j = 0; // expected-error {{deduced as 'long' in declaration of 'i' and deduced as 'int' in declaration of 'j'}}
+ }
+
+ void g() {
+ f<long>(); // expected-note {{here}}
+ f<int>();
+ }
+}
+
+namespace NoRepeatedDiagnostic {
+ template<typename T>
+ void f() {
+ auto a = 0, b = 0.0, c = T(); // expected-error {{deduced as 'int' in declaration of 'a' and deduced as 'double' in declaration of 'b'}}
+ }
+ // We've already diagnosed an issue. No extra diagnostics is needed for these.
+ template void f<int>();
+ template void f<double>();
+ template void f<char>();
+}