libstdc++/7216: basic_iostream::traits_type is ambiguous issue
dens@stl.sarov.ru
dens@stl.sarov.ru
Fri Jul 5 08:16:00 GMT 2002
>Number: 7216
>Category: libstdc++
>Synopsis: basic_iostream::traits_type is ambiguous issue
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Fri Jul 05 07:06:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Denis Nagorny
>Release: libstdc++3-3.0.1-3
>Organization:
>Environment:
Linux RedHat 7.2
libstdc++3-3.0.1-3
gcc3-c++-3.0.1-3
>Description:
When I try to compile my program:
typedef std::char_traits<char> tCT;
typedef std::basic_iostream<char,tCT> Iostr;
int main(int,char*[])
{
Iostr::traits_type * some;
return 0;
}
with g++3 & your library compiler produce following message:
test.cpp:6: request for member `traits_type' is ambiguous
/usr/include/g++-v3/bits/std_ostream.h:54: candidates are: typedef struct
std::char_traits<char> std::basic_ostream<char, std::char_traits<char>
>::traits_type
/usr/include/g++-v3/bits/std_istream.h:54: typedef struct
std::char_traits<char> std::basic_istream<char, std::char_traits<char>
>::traits_type
I know that C++ standard 27.6.1.1 & 27.6.2.1 describes public types of classes basic_istream & basic_ostream such as:
.......
public:
// Types (inherited from basic_ios (27.4.4)):
typedef charT char_type;
typedef typename traits::int_type int_type;
typedef typename traits::pos_type pos_type;
typedef typename traits::off_type off_type;
typedef traits traits_type;
.............
But I believe that you can place this types in basic_ios only.
>How-To-Repeat:
Try to compile attached sample
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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