https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81017
Bug ID: 81017
Summary: Class with vector of unique_ptr and std::function does
not compile
Product: gcc
Version: 7.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: Sagar2.shah at citi dot com
Target Milestone: ---
I have below code which does not compile with gcc 7.1.0 compiler. Though it
compiles well with clang 4.0.0
#include <iostream>
#include <memory>
#include <vector>
#include <functional>
#include <map>
class Foo {
public:
Foo() {}
using messageFunc = std::function<void(int)>;
std::vector<std::unique_ptr<int>> vec;
messageFunc f;
private:
void print_add(int i) const { std::cout << i << '\n'; }
};
int main()
{
Foo o;
std::vector<Foo> vec;
vec.reserve(10);
}
compilation error -
In file included from /opt/wandbox/gcc-7.1.0/include/c++/7.1.0/memory:64:0,
from prog.cc:3:
/opt/wandbox/gcc-7.1.0/include/c++/7.1.0/bits/stl_construct.h: In instantiation
of 'void std::_Construct(_T1*, _Args&& ...) [with _T1 = std::unique_ptr<int>;
_Args = {const std::unique_ptr<int, std::default_delete<int> >&}]':
/opt/wandbox/gcc-7.1.0/include/c++/7.1.0/bits/stl_uninitialized.h:83:18:
required from 'static _ForwardIterator
std::__uninitialized_copy<_TrivialValueTypes>::__uninit_copy(_InputIterator,
_InputIterator, _ForwardIterator) [with _InputIterator =
__gnu_cxx::__normal_iterator<const std::unique_ptr<int>*,
std::vector<std::unique_ptr<int> > >; _ForwardIterator = std::unique_ptr<int>*;
bool _TrivialValueTypes = false]'
/opt/wandbox/gcc-7.1.0/include/c++/7.1.0/bits/stl_uninitialized.h:134:15:
required from '_ForwardIterator std::uninitialized_copy(_InputIterator,
_InputIterator, _ForwardIterator) [with _InputIterator =
__gnu_cxx::__normal_iterator<const std::unique_ptr<int>*,
std::vector<std::unique_ptr<int> > >; _ForwardIterator =
std::unique_ptr<int>*]'
/opt/wandbox/gcc-7.1.0/include/c++/7.1.0/bits/stl_uninitialized.h:289:37:
required from '_ForwardIterator std::__uninitialized_copy_a(_InputIterator,
_InputIterator, _ForwardIterator, std::allocator<_Tp>&) [with _InputIterator =
__gnu_cxx::__normal_iterator<const std::unique_ptr<int>*,
std::vector<std::unique_ptr<int> > >; _ForwardIterator = std::unique_ptr<int>*;
_Tp = std::unique_ptr<int>]'
/opt/wandbox/gcc-7.1.0/include/c++/7.1.0/bits/stl_vector.h:331:31: required
from 'std::vector<_Tp, _Alloc>::vector(const std::vector<_Tp, _Alloc>&) [with
_Tp = std::unique_ptr<int>; _Alloc = std::allocator<std::unique_ptr<int> >]'
prog.cc:7:7: required from 'void std::_Construct(_T1*, _Args&& ...) [with _T1
= Foo; _Args = {const Foo&}]'
/opt/wandbox/gcc-7.1.0/include/c++/7.1.0/bits/stl_uninitialized.h:83:18:
required from 'static _ForwardIterator
std::__uninitialized_copy<_TrivialValueTypes>::__uninit_copy(_InputIterator,
_InputIterator, _ForwardIterator) [with _InputIterator = const Foo*;
_ForwardIterator = Foo*; bool _TrivialValueTypes = false]'
/opt/wandbox/gcc-7.1.0/include/c++/7.1.0/bits/stl_uninitialized.h:134:15:
required from '_ForwardIterator std::uninitialized_copy(_InputIterator,
_InputIterator, _ForwardIterator) [with _InputIterator = const Foo*;
_ForwardIterator = Foo*]'
/opt/wandbox/gcc-7.1.0/include/c++/7.1.0/bits/stl_uninitialized.h:289:37:
required from '_ForwardIterator std::__uninitialized_copy_a(_InputIterator,
_InputIterator, _ForwardIterator, std::allocator<_Tp>&) [with _InputIterator =
const Foo*; _ForwardIterator = Foo*; _Tp = Foo]'
/opt/wandbox/gcc-7.1.0/include/c++/7.1.0/bits/stl_vector.h:1263:35: required
from 'std::vector<_Tp, _Alloc>::pointer std::vector<_Tp,
_Alloc>::_M_allocate_and_copy(std::vector<_Tp, _Alloc>::size_type,
_ForwardIterator, _ForwardIterator) [with _ForwardIterator = const Foo*; _Tp =
Foo; _Alloc = std::allocator<Foo>; std::vector<_Tp, _Alloc>::pointer = Foo*;
std::vector<_Tp, _Alloc>::size_type = long unsigned int]'
/opt/wandbox/gcc-7.1.0/include/c++/7.1.0/bits/vector.tcc:73:40: required from
'void std::vector<_Tp, _Alloc>::reserve(std::vector<_Tp, _Alloc>::size_type)
[with _Tp = Foo; _Alloc = std::allocator<Foo>; std::vector<_Tp,
_Alloc>::size_type = long unsigned int]'
prog.cc:22:19: required from here
/opt/wandbox/gcc-7.1.0/include/c++/7.1.0/bits/stl_construct.h:75:7: error: use
of deleted function 'std::unique_ptr<_Tp, _Dp>::unique_ptr(const
std::unique_ptr<_Tp, _Dp>&) [with _Tp = int; _Dp = std::default_delete<int>]'
{ ::new(static_cast<void*>(__p)) _T1(std::forward<_Args>(__args)...); }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /opt/wandbox/gcc-7.1.0/include/c++/7.1.0/memory:80:0,
from prog.cc:3:
/opt/wandbox/gcc-7.1.0/include/c++/7.1.0/bits/unique_ptr.h:388:7: note:
declared here
unique_ptr(const unique_ptr&) = delete;
^~~~~~~~~~
