77 lines
3.1 KiB
C++
77 lines
3.1 KiB
C++
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// RUN: %clang_cc1 -fsyntax-only -std=c++98 -Wc++11-compat-pedantic -verify %s
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// RUN: %clang_cc1 -fsyntax-only -std=c++17 -Wc++11-compat-pedantic -verify %s
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#if __cplusplus < 201103L
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namespace N {
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template<typename T> void f(T) {} // expected-note 2{{here}}
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namespace M {
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template void ::N::f<int>(int); // expected-warning {{explicit instantiation of 'f' not in a namespace enclosing 'N'}}
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}
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}
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using namespace N;
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template void f<char>(char); // expected-warning {{explicit instantiation of 'N::f' must occur in namespace 'N'}}
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template<typename T> void g(T) {} // expected-note 2{{here}}
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namespace M {
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template void g<int>(int); // expected-warning {{explicit instantiation of 'g' must occur at global scope}}
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template void ::g<char>(char); // expected-warning {{explicit instantiation of 'g' must occur at global scope}}
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}
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template inline void g<double>(double); // expected-warning {{explicit instantiation cannot be 'inline'}}
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void g() {
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auto int n = 0; // expected-warning {{'auto' storage class specifier is redundant and incompatible with C++11}}
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}
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int n;
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struct S {
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char c;
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}
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s = { n }, // expected-warning {{non-constant-expression cannot be narrowed from type 'int' to 'char' in initializer list in C++11}} expected-note {{explicit cast}}
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t = { 1234 }; // expected-warning {{constant expression evaluates to 1234 which cannot be narrowed to type 'char' in C++11}} expected-warning {{changes value}} expected-note {{explicit cast}}
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#define PRIuS "zu"
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int printf(const char *, ...);
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typedef __typeof(sizeof(int)) size_t;
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void h(size_t foo, size_t bar) {
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printf("foo is %"PRIuS", bar is %"PRIuS, foo, bar); // expected-warning 2{{identifier after literal will be treated as a reserved user-defined literal suffix in C++11}}
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}
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#define _x + 1
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char c = 'x'_x; // expected-warning {{will be treated as a user-defined literal suffix}}
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template<int ...N> int f() { // expected-warning {{C++11 extension}}
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return (N + ...); // expected-warning {{C++17 extension}}
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}
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#else
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decltype(auto) x = 0; // expected-warning {{'decltype(auto)' type specifier is incompatible}}
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auto init_capture = [a(0)] {}; // expected-warning {{initialized lambda captures are incompatible with C++ standards before C++14}}
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auto generic_lambda =
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[](
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auto // expected-warning {{generic lambdas are incompatible}}
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*a) {};
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auto deduced_return_type(); // expected-warning {{incompatible with C++ standards before C++14}}
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auto *another_deduced_return_type(); // expected-warning {{incompatible with C++ standards before C++14}}
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decltype(auto) also_deduced_return_type(); // expected-warning {{return type deduction}} expected-warning {{'decltype(auto)' type specifier is incompatible}}
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int f();
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auto (*not_deduced_return_type)() = f;
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auto deduced_lambda_return_type = []() ->
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auto // expected-warning {{return type deduction is incompatible}}
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{};
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auto trailing_non_deduced_return_type() -> int;
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auto trailing_deduced_return_type() -> auto; // expected-warning {{incompatible with C++ standards before C++14}}
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struct A {
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operator auto(); // expected-warning {{return type deduction is incompatible}}
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};
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#endif
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