[Bug c++/28507] New: can't getline with basic_ifstream< unsigned char >

[antonw03 at yahoo dot com]

I haven't had much experience with basic_ifstream, so please forgive me if this
is expected gcc behavior.

Observed behavior:
getline on an instance of basic_ifstream< unsigned char > fails to copy a line
of the source file to the buffer.

Expected behavior:
basic_ifstream< unsigned char > getline should work just like basic_ifstream<
char >'s getline (except for the difference in buffer character types).

Please save the example as main.cpp and just g++ main.cpp and execute ./a.out.

Here's the code example:

#include <fstream>
#include <iostream>


int main ( int argC, char ** const argV )
{
   std::cout << "file content with std::basic_ifstream< char, std::char_traits<
char > :\n" << std::endl;

   std::basic_ifstream< char, std::char_traits< char > > source( "main.cpp",
std::ios_base::in | std::ios_base::binary );

   char buffer[ 8096 ] = {0};

   while( source.getline( buffer, sizeof( buffer ), '\n' ) )
   {
      std::cout << buffer << std::endl;
   }

   source.close();

   std::cout << "\n...END basic_ifstream< char > FILE...\n" << std::endl;

   std::cout << "file content with std::basic_ifstream< unsigned char,
std::char_traits< unsigned char > :\n" << std::endl;

   std::basic_ifstream< unsigned char, std::char_traits< unsigned char > >
uchar_source( "main.cpp", std::ios_base::in | std::ios_base::binary );

   unsigned char uchar_buffer[ 8096 ] = {0};

   while( uchar_source.getline( uchar_buffer, sizeof( uchar_buffer ), '\n' ) )
   {
      std::cout << uchar_buffer << std::endl;
   }

   uchar_source.close();

   std::cout << "\n...END basic_ifstream< unsigned char > FILE...\n" <<
std::endl;

   return 0;
}

I reproduced this behavior on a mac-mini OSX 10.4.7 with an intel processor
(gcc V 4.0.1) and also with an older intel freebsd box (gcc V 3.4.4).


-- 
           Summary: can't getline with basic_ifstream< unsigned char >
           Product: gcc
           Version: 4.0.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: antonw03 at yahoo dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28507