Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp0x/not_special.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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// I, Howard Hinnant, hereby place this code in the public domain. // Test that move constructor and move assignement are special. // That is, their presence should cause compiler declared // copy ctor or assignment to be deleted. // { dg-do compile { target c++11 } } #include <assert.h> template <bool> struct sa; template <> struct sa<true> {}; struct one {char x[1];}; struct two {char x[2];}; int copy = 0; int assign = 0; struct base { base() {} base(const base&) {++copy;} base& operator=(const base&) {++assign; return *this;} }; struct derived // { dg-message "declares a move" } : base { derived() {} derived(derived&&) {} derived& operator=(derived&&) {return *this;} }; int test1() { derived d; derived d2(static_cast<derived&&>(d)); // should not call base::(const base&) assert(copy == 0); derived d3(d); // { dg-error "deleted" } assert(copy == 1); d2 = static_cast<derived&&>(d); // should not call base::operator= assert(assign == 0); d3 = d; // { dg-error "deleted" } assert(assign == 1); return 0; } int main() { return test1(); }