36ee9fb219
it. Diagnose with recovery if it appears after a function parameter that was obviously supposed to be a parameter pack. Otherwise, warn if it immediately follows a function parameter pack, because the user most likely didn't intend to write a parameter pack followed by a C-style varargs ellipsis. This warning can be syntactically disabled by using ", ..." instead of "...". llvm-svn: 215408
68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
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// expected-no-diagnostics
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template<typename T>
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struct classify_function {
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static const unsigned value = 0;
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};
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template<typename R, typename ...Args>
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struct classify_function<R(Args...)> {
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static const unsigned value = 1;
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};
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template<typename R, typename ...Args>
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struct classify_function<R(Args...) const> {
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static const unsigned value = 2;
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};
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template<typename R, typename ...Args>
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struct classify_function<R(Args...) volatile> {
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static const unsigned value = 3;
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};
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template<typename R, typename ...Args>
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struct classify_function<R(Args...) const volatile> {
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static const unsigned value = 4;
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};
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template<typename R, typename ...Args>
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struct classify_function<R(Args..., ...)> {
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static const unsigned value = 5;
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};
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template<typename R, typename ...Args>
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struct classify_function<R(Args..., ...) const> {
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static const unsigned value = 6;
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};
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template<typename R, typename ...Args>
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struct classify_function<R(Args..., ...) volatile> {
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static const unsigned value = 7;
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};
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template<typename R, typename ...Args>
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struct classify_function<R(Args..., ...) const volatile> {
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static const unsigned value = 8;
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};
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template<typename R, typename ...Args>
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struct classify_function<R(Args..., ...) &&> {
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static const unsigned value = 9;
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};
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template<typename R, typename ...Args>
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struct classify_function<R(Args..., ...) const &> {
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static const unsigned value = 10;
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};
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typedef void f0(int) const;
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typedef void f1(int, float...) const volatile;
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typedef void f2(int, double, ...) &&;
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typedef void f3(int, double, ...) const &;
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int check0[classify_function<f0>::value == 2? 1 : -1];
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int check1[classify_function<f1>::value == 8? 1 : -1];
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int check2[classify_function<f2>::value == 9? 1 : -1];
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int check3[classify_function<f3>::value == 10? 1 : -1];
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