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From "Martin Sebor (JIRA)" <j...@apache.org>
Subject [jira] Created: (STDCXX-744) error calling std::allocator::allocate() from user-defined allocator
Date Mon, 10 Mar 2008 21:16:46 GMT
error calling std::allocator::allocate() from user-defined allocator
--------------------------------------------------------------------

                 Key: STDCXX-744
                 URL: https://issues.apache.org/jira/browse/STDCXX-744
             Project: C++ Standard Library
          Issue Type: Bug
          Components: 20. General Utilities
    Affects Versions: 4.2.0
         Environment: gcc 4.1.2
            Reporter: Martin Sebor


The program below reduced from Plum Hall test case {{lvs07a/t237.dir/_23252Y11.cpp}} fails
to compile with both the head of trunk and stdcxx 4.2.0. It compiles fine with gcc 4.1.2.

{noformat}
$ cat t.cpp && make t
#include <memory>
#include <vector>

template <class T>
struct Allocator: std::allocator<T> {
    T* allocate (unsigned n, const T *p) {
        return std::allocator<T>::allocate (n, p);
    }
};

int main () {
    std::vector<int, Allocator<int> > v (2, 3);
}
gcc -c -I$TOPDIRinclude/ansi -D_RWSTDDEBUG    -I$TOPDIRinclude -I/build/sebor/stdcxx-gcc-4.1.2-11S-LVS/include
-I$TOPDIRinclude/ansi -I/build/sebor/PlumHall/lvs07a/conform -I/build/sebor/PlumHall/lvs07a/dst.3
 -pedantic -nostdinc++ -g   -W -Wall -Wcast-qual -Winline -Wshadow -Wwrite-strings -Wno-long-long
-Wcast-align    t.cpp
$TOPDIRinclude/vector.cc: In member function 'void std::vector<_TypeT, _Allocator>::_C_realloc(typename
_Allocator::size_type) [with _TypeT = int, _Allocator = Allocator<int>]':
$TOPDIRinclude/vector:501:   instantiated from 'void std::vector<_TypeT, _Allocator>::reserve(typename
_Allocator::size_type) [with _TypeT = int, _A
llocator = Allocator<int>]'
$TOPDIRinclude/vector.cc:219:   instantiated from 'void std::vector<_TypeT, _Allocator>::_C_insert_n(const
_rw::__rw_debug_iter<std::vector<_TypeT,
 _Allocator>, typename _Allocator::pointer, typename _Allocator::pointer>&, typename
_Allocator::size_type, typename _Allocator::const_reference) [with _TypeT = int, _Allocator
= Allocator<int>]'
$TOPDIRinclude/vector:301:   instantiated from 'void std::vector<_TypeT, _Allocator>::insert(__rw::__rw_debug_iter<std::vector<_TypeT,
_Allocator>, 
typename _Allocator::pointer, typename _Allocator::pointer>, typename _Allocator::size_type,
typename _Allocator::const_reference) [with _TypeT = int, _Allocator = Allocator<int>]'
$TOPDIRinclude/vector.cc:152:   instantiated from 'void std::vector<_TypeT, _Allocator>::_C_assign_n(typename
_Allocator::size_type, typename _Allocator::const_reference) [with _TypeT = int, _Allocator
= Allocator<int>]'
$TOPDIRinclude/vector:362:   instantiated from 'void std::vector<_TypeT, _Allocator>::_C_assign(_IntType,
_IntType, int) [with _IntType = int, _Type
T = int, _Allocator = Allocator<int>]'
$TOPDIRinclude/vector:194:   instantiated from 'void std::vector<_TypeT, _Allocator>::assign(_InputIter,
_InputIter) [with _InputIter = int, _TypeT = int, _Allocator = Allocator<int>]'
$TOPDIRinclude/vector:173:   instantiated from 'std::vector<_TypeT, _Allocator>::vector(_InputIter,
_InputIter, const _Allocator&) [with _InputIter = int, _TypeT = int, _Allocator = Allocator<int>]'
t.cpp:12:   instantiated from here
$TOPDIRinclude/vector.cc:85: error: no matching function for call to  'std::vector<int,
Allocator<int> >::allocate(long unsigned int&, std::vector<int, Allocator<int>
>* const)'
t.cpp:6: note: candidates are: T* Allocator<T>::allocate(unsigned int, const T*) [with
T = int]
make: *** [t.o] Error 1
{noformat}

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