108 lines
2.3 KiB
C++
108 lines
2.3 KiB
C++
/* This testcase is part of GDB, the GNU debugger.
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Copyright 1998-2020 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Rvalue references overload tests for GDB, based on overload.cc. */
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#include <stddef.h>
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#include <utility>
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class foo;
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typedef foo &foo_lval_ref;
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typedef foo &&foo_rval_ref;
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class foo
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{
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public:
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foo ();
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foo (foo_lval_ref);
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foo (foo_rval_ref);
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~foo ();
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int overload1arg (foo_lval_ref);
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int overload1arg (foo_rval_ref);
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int overloadConst (const foo &);
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int overloadConst (const foo &&);
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};
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void
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marker1 ()
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{
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}
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static int
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f (int &x)
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{
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return 1;
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}
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static int
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f (const int &x)
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{
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return 2;
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}
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static int
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f (int &&x)
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{
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return 3;
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}
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static int
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g (int &&x)
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{
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return x;
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}
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int
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main ()
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{
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foo foo_rr_instance1;
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foo arg;
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int i = 0;
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const int ci = 0;
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// result = 1 + 2 + 3 + 3 = 9
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int result = f (i) + f (ci) + f (0) + f (std::move (i));
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/* Overload resolution below requires both a CV-conversion
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and reference conversion. */
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int test_const // = 3
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= foo_rr_instance1.overloadConst (arg);
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/* The statement below is illegal: cannot bind rvalue reference of
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type 'int&&' to lvalue of type 'int'.
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result = g (i); */
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result = g (5); // this is OK
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marker1 (); // marker1-returns-here
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return result;
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}
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foo::foo () {}
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foo::foo (foo_lval_ref afoo) {}
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foo::foo (foo_rval_ref afoo) {}
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foo::~foo () {}
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/* Some functions to test overloading by varying one argument type. */
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int foo::overload1arg (foo_lval_ref arg) { return 1; }
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int foo::overload1arg (foo_rval_ref arg) { return 2; }
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int foo::overloadConst (const foo &arg) { return 3; }
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int foo::overloadConst (const foo &&arg) { return 4; }
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