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From: "nmm1 at cam dot ac.uk" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/57403] New: A vector of volatile int doesn't work, but one of volatile void * does Date: Fri, 24 May 2013 18:41:00 -0000 [thread overview] Message-ID: <bug-57403-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57403 Bug ID: 57403 Summary: A vector of volatile int doesn't work, but one of volatile void * does Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ Assignee: unassigned at gcc dot gnu.org Reporter: nmm1 at cam dot ac.uk In gcc 4.8.0, the following program fails horribly: #include <vector> int main () { std::vector<volatile int> memory(123); } Change the 'int' to void *' and it works. It fails under OpenSUSE 11.4 and OpenSUSE 12.1, both on AMD 64-bit, and with gcc 4.6.2 as well. The messages are: Test.cpp: In constructor 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>::size_type, const value_type&, const allocator_type&) [with _Tp = volatile int; _Alloc = std::allocator<volatile int>; std::vector<_Tp, _Alloc>::size_type = long unsigned int; std::vector<_Tp, _Alloc>::value_type = volatile int; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<volatile int>]': Test.cpp:4:41: error: could not convert '0' from 'int' to 'const volatile value_type& {aka const volatile int&}' std::vector<volatile int> memory(123); ^ Test.cpp: In function 'int main()': Test.cpp:4:41: error: invalid initialization of reference of type 'const volatile value_type& {aka const volatile int&}' from expression of type 'int' In file included from /home/nmm/GCC/include/c++/4.8.0/vector:65:0, from Test.cpp:1: /home/nmm/GCC/include/c++/4.8.0/bits/stl_vector.h:296:7: error: in passing argument 2 of 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>::size_type, const value_type&, const allocator_type&) [with _Tp = volatile int; _Alloc = std::allocator<volatile int>; std::vector<_Tp, _Alloc>::size_type = long unsigned int; std::vector<_Tp, _Alloc>::value_type = volatile int; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<volatile int>]' vector(size_type __n, const value_type& __value = value_type(), ^ In file included from /home/nmm/GCC/include/c++/4.8.0/x86_64-unknown-linux-gnu/bits/c++allocator.h:33:0, from /home/nmm/GCC/include/c++/4.8.0/bits/allocator.h:47, from /home/nmm/GCC/include/c++/4.8.0/vector:62, from Test.cpp:1: /home/nmm/GCC/include/c++/4.8.0/ext/new_allocator.h: In instantiation of 'void __gnu_cxx::new_allocator<_Tp>::deallocate(__gnu_cxx::new_allocator<_Tp>::pointer, __gnu_cxx::new_allocator<_Tp>::size_type) [with _Tp = volatile int; __gnu_cxx::new_allocator<_Tp>::pointer = volatile int*; __gnu_cxx::new_allocator<_Tp>::size_type = long unsigned int]': /home/nmm/GCC/include/c++/4.8.0/bits/stl_vector.h:175:4: required from 'void std::_Vector_base<_Tp, _Alloc>::_M_deallocate(std::_Vector_base<_Tp, _Alloc>::pointer, std::size_t) [with _Tp = volatile int; _Alloc = std::allocator<volatile int>; std::_Vector_base<_Tp, _Alloc>::pointer = volatile int*; std::size_t = long unsigned int]' /home/nmm/GCC/include/c++/4.8.0/bits/stl_vector.h:162:33: required from 'std::_Vector_base<_Tp, _Alloc>::~_Vector_base() [with _Tp = volatile int; _Alloc = std::allocator<volatile int>]' /home/nmm/GCC/include/c++/4.8.0/bits/stl_vector.h:298:23: required from 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>::size_type, const value_type&, const allocator_type&) [with _Tp = volatile int; _Alloc = std::allocator<volatile int>; std::vector<_Tp, _Alloc>::size_type = long unsigned int; std::vector<_Tp, _Alloc>::value_type = volatile int; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<volatile int>]' Test.cpp:4:41: required from here /home/nmm/GCC/include/c++/4.8.0/ext/new_allocator.h:110:30: error: invalid conversion from 'volatile void*' to 'void*' [-fpermissive] { ::operator delete(__p); } ^ In file included from /home/nmm/GCC/include/c++/4.8.0/ext/new_allocator.h:33:0, from /home/nmm/GCC/include/c++/4.8.0/x86_64-unknown-linux-gnu/bits/c++allocator.h:33, from /home/nmm/GCC/include/c++/4.8.0/bits/allocator.h:47, from /home/nmm/GCC/include/c++/4.8.0/vector:62, from Test.cpp:1: /home/nmm/GCC/include/c++/4.8.0/new:97:6: error: initializing argument 1 of 'void operator delete(void*)' [-fpermissive] void operator delete(void*) _GLIBCXX_USE_NOEXCEPT ^
next reply other threads:[~2013-05-24 18:41 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-05-24 18:41 nmm1 at cam dot ac.uk [this message] 2013-05-24 18:44 ` [Bug libstdc++/57403] " pinskia at gcc dot gnu.org 2013-05-24 19:02 ` nmm1 at cam dot ac.uk 2013-05-24 19:47 ` glisse at gcc dot gnu.org 2013-05-24 21:05 ` daniel.kruegler at googlemail dot com 2013-06-18 10:39 ` nmm1 at cam dot ac.uk 2014-10-13 14:40 ` redi at gcc dot gnu.org
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