55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
// I, Howard Hinnant, hereby place this code in the public domain.
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// Test that move constructor and move assignement are not special.
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// That is, their presence should not inhibit compiler generated
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// copy ctor or assignment. Rather they should overload with the
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// compiler generated special members.
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// { dg-do run }
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// { dg-options "-std=c++0x" }
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#include <assert.h>
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template <bool> struct sa;
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template <> struct sa<true> {};
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struct one {char x[1];};
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struct two {char x[2];};
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int copy = 0;
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int assign = 0;
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struct base
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{
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base() {}
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base(const base&) {++copy;}
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base& operator=(const base&) {++assign; return *this;}
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};
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struct derived
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: base
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{
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derived() {}
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derived(derived&&) {}
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derived& operator=(derived&&) {return *this;}
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};
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int test1()
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{
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derived d;
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derived d2(static_cast<derived&&>(d)); // should not call base::(const base&)
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assert(copy == 0);
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derived d3(d); // should call base::(const base&)
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assert(copy == 1);
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d2 = static_cast<derived&&>(d); // should not call base::operator=
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assert(assign == 0);
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d3 = d; // should call base::operator=
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assert(assign == 1);
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return 0;
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}
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int main()
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{
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return test1();
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}
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