59 lines
1.4 KiB
C++
59 lines
1.4 KiB
C++
// 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>();
|
|
}
|