forked from OSchip/llvm-project
74 lines
1.8 KiB
C++
74 lines
1.8 KiB
C++
// RUN: %check_clang_tidy %s misc-move-const-arg %t
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namespace std {
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template <typename> struct remove_reference;
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template <typename _Tp> struct remove_reference { typedef _Tp type; };
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template <typename _Tp> struct remove_reference<_Tp &> { typedef _Tp type; };
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template <typename _Tp> struct remove_reference<_Tp &&> { typedef _Tp type; };
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template <typename _Tp>
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constexpr typename std::remove_reference<_Tp>::type &&move(_Tp &&__t);
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} // namespace std
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class A {
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public:
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A() {}
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A(const A &rhs) {}
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A(A &&rhs) {}
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};
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int f1() {
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return std::move(42);
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// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: std::move of the expression of a trivially-copyable type has no effect; remove std::move() [misc-move-const-arg]
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// CHECK-FIXES: return 42;
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}
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int f2(int x2) {
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return std::move(x2);
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// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: std::move of the variable of a trivially-copyable type
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// CHECK-FIXES: return x2;
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}
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int *f3(int *x3) {
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return std::move(x3);
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// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: std::move of the variable of a trivially-copyable type
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// CHECK-FIXES: return x3;
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}
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A f4(A x4) { return std::move(x4); }
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A f5(const A x5) {
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return std::move(x5);
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// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: std::move of the const variable
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// CHECK-FIXES: return x5;
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}
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template <typename T> T f6(const T x6) { return std::move(x6); }
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void f7() { int a = f6(10); }
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#define M1(x) x
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void f8() {
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const A a;
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M1(A b = std::move(a);)
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// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: std::move of the const variable
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// CHECK-FIXES: M1(A b = a;)
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}
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#define M2(x) std::move(x)
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int f9() { return M2(1); }
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template <typename T> T f10(const int x10) {
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return std::move(x10);
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// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: std::move of the const variable
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// CHECK-FIXES: return x10;
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}
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void f11() {
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f10<int>(1);
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f10<double>(1);
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}
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