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primitive type copy constructor
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#include <cassert> #include <iostream> struct MyClass { int m = 0; }; MyClass& f(MyClass& x) { x.m++; return x; } inline MyClass f(MyClass&& x) { return f(x); } int& f(int& x) { x++; return x; } inline int f(int&& x) { return f(x); } int main() { MyClass x1; auto y1 = f(MyClass(x1)); // Result: x1.m = 0, y1.m = 1 int x2 = 0; auto y2 = f(int(x2)); // Result: x2 = 1, y2 = 1 std::cout << x1.m << x2; //assert(x1.m == x2); // FAILED!!! return 0; }
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Compilation time: 1.67 sec, absolute running time: 0.04 sec, absolute service time: 1.73 sec
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