[boost] [Boost.Format] 64 bit failure test case

From: Angus Leeming (angus.leeming_at_[hidden])
Date: 2004-03-24 11:10:34

This test code aborts at run time when compiled against version 1.31
of the boost libraries using g++ 3.3.3 on a Linux/Alpha machine 
(64bit architecture.). It also aborts at run time when compiled 
against current cvs.

#include <boost/format.hpp>
#include <string>
#include <iostream>

using std::string;

string bformat(string const & fmt, string const & arg1)
{
        return (boost::format(fmt) % arg1).str();
}

int main()
{
        std::cout << bformat("Creating directory %1$s and running configure...",                             "/home/foo/.bar")
                  << std::endl;

        return 0;
}

I believe that I have tracked down the cause of the failure.

Adding this patch to format/feed_args.hpp

$ diff -u lyx/devel/boost/boost/format/feed_args_orig.hpp lyx/devel/boost/boost/format/feed_args.hpp
--- lyx/devel/boost/boost/format/feed_args_orig.hpp     2004-03-24 15:13:50.000000000 +0000
+++ lyx/devel/boost/boost/format/feed_args.hpp  2004-03-24 15:10:59.000000000 +0000
@@ -162,6 +162,14 @@
               static_cast<std::streamsize>(specs.truncate_ - !!prefix_space),
               oss_.pcount());

+           std::cout << "std::numeric_limits<std::streamsize>::max() " << std::numeric_limits<std::streamsize>::max() << '\n'
+                     << "specs.truncate_ " << specs.truncate_ << '\n'
+                     << "!!prefix_space  " << !!prefix_space << '\n'
+                     << "static_cast<std::streamsize>(a - b) "
+                     << static_cast<std::streamsize>(specs.truncate_ - !!prefix_space) << '\n'
+                     << "oss_.pcount() " << oss_.pcount() << '\n'
+                     << "res_size " << res_size << std::endl;
+
             mk_str(res, res_beg, res_size, w, oss_.fill(), fl,
                    prefix_space, (specs.pad_scheme_ & format_item_t::centered)
!=0 );
         }

leads to the following output prior to the code aborting:

$ ./trial
std::numeric_limits<std::streamsize>::max() 9223372036854775807
specs.truncate_ -1
!!prefix_space  0
static_cast<std::streamsize>(a - b) -1
oss_.pcount() 14
res_size -1
Aborted

specs.truncate_ is being initialised incorrectly in the format_item
constructor because it is an int (sizeof(4)) whilst std::streamsize has
sizeof(8) on the Alpha.

FWIW, I attach the gdb backtrace also. Note the 'size == -1' in #9 of 
this backtrace.

Hoping this all makes sense,
Regards,
Angus

(gdb) where
#0  0x00000200002384a8 in kill () from /lib/libc.so.6.1
#1  0x0000020000238224 in raise () from /lib/libc.so.6.1
#2  0x0000020000239bb0 in abort () from /lib/libc.so.6.1

#3  0x00000200000ff638 in __cxa_call_unexpected () from /usr/lib/libstdc++.so.5

#4  0x00000200000ff690 in std::terminate() () from /usr/lib/libstdc++.so.5
#5  0x00000200000ff82c in __cxa_throw () from /usr/lib/libstdc++.so.5
#6  0x0000020000098d30 in std::__throw_length_error(char const*) ()
   from /usr/lib/libstdc++.so.5

#7  0x00000200000ed348 in std::string& std::string::_M_replace_safe<char const*>(__gnu_cxx::__normal_iterator<char*, std::string>, __gnu_cxx::__normal_iterator<char*, std::string>, char const*, char const*) () from /usr/lib/libstdc++.so.5

#8  0x00000200000e9a34 in std::string::append(char const*, unsigned long) ()
   from /usr/lib/libstdc++.so.5

#9  0x0000000120008ec8 in void boost::io::detail::(anonymous namespace)::mk_str<char, std::char_traits<char> >(std::basic_string<char, std::char_traits<char>, std::allocator<char> >&, char const*, long, long, char, std::_Ios_Fmtflags, char, bool) (
res=@0x120025a58, beg=0x1200265e8 "/home/foo/.bar", size=-1, w=0,
    fill_char=32 ' ', f=4098, prefix_space=0 '\0', center=false)
    at feed_args.hpp:73
#10 0x0000000120008568 in void boost::io::detail::(anonymous 
namespace)::put<char, std::char_traits<char>, std::string const&>(std::string 
const&, boost::io::detail::format_item<char, std::char_traits<char> > const&, 
std::basic_string<char, std::char_traits<char>, std::allocator<char> >&, 
boost::io::basic_outsstream<char, std::char_traits<char> >&) (x=@0x11ffff950, 
specs=@0x120025a50,
    res=@0x120025a58, oss_=@0x11ffff738) at feed_args.hpp:165
#11 0x0000000120007544 in void boost::io::detail::distribute<char, 
std::char_traits<char>, std::string const&>(boost::basic_format<char, 
std::char_traits<char>
>&, std::string const&) (self=@0x11ffff6e0, x=@0x11ffff950)
    at feed_args.hpp:241
#12 0x00000001200056c8 in boost::basic_format<char, std::char_traits<char> >& 
boost::io::detail::feed<char, std::char_traits<char>, std::string 
const&>(boost::basic_format<char, std::char_traits<char> >&, std::string 
const&) (
    self=@0x11ffff6e0, x=@0x11ffff950) at feed_args.hpp:249
#13 0x0000000120003b0c in operator%<std::basic_string<char, 
std::char_traits<char>, std::allocator<char> > > (this=0x11ffff6e0, 
x=@0x11ffff950)
    at format_class.hpp:61
#14 0x00000001200035f8 in bformat(std::string const&, std::string const&) (
    fmt=@0x11ffff930, arg1=@0x11ffff950) at trial.C:11
#15 0x0000000120003748 in main () at trial.C:16