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annotate clang/test/SemaCXX/warn-unused-parameters.cpp @ 222:81f6424ef0e3 llvm-original

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LLVM original branch
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sun, 18 Jul 2021 22:10:01 +0900
parents 1d019706d866
children c4bab56944e8
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1 // RUN: %clang_cc1 -fsyntax-only -Wunused-parameter -verify -std=c++11 %s
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2 template<typename T>
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3 struct X {
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4 T f0(T x);
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5 T f1(T x);
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6 T f2(T);
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7 template<typename U> U f3(U x);
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8 template<typename U> U f4(U x);
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9 template<typename U> U f5(U);
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10 };
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11
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12 template<typename T> T X<T>::f0(T x) { return x; }
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13 template<typename T> T X<T>::f1(T) { return T(); }
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14 template<typename T> T X<T>::f2(T x) { return T(); } // expected-warning{{unused parameter 'x'}}
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15 template<typename T> template<typename U> U X<T>::f3(U x) { return x; }
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16 template<typename T> template<typename U> U X<T>::f4(U) { return U(); }
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17 template<typename T> template<typename U> U X<T>::f5(U x) { return U(); } // expected-warning{{unused parameter 'x'}}
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18
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19 void test_X(X<int> &x, int i) {
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20 x.f0(i);
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21 x.f1(i);
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22 x.f2(i);
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23 x.f3(i);
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24 x.f4(i);
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25 x.f5(i);
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26 }
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27
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28 // Make sure both parameters aren't considered unused.
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29 template <typename... T>
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30 static int test_pack(T... t, T... s)
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31 {
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32 auto l = [&t...]() { return sizeof...(s); };
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33 return l();
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34 }