load-save.cc oddity

[David Bateman]

Jack Howarth wrote:
> David,
>    The section of code that is misbehaving on
> Apple's compilers is...
>
> #0  0x756f6d79 in ?? ()
> #1  0x01f1bf50 in std::basic_filebuf<char, std::char_traits<char> >::_M_terminate_output (this=0x8fe31ca4) at /sw/src/fink.build/gcc42-4.2.2-1000/darwin_objdir/i686-apple-darwin9/libstdc++-v3/include/fstream:712
> #2  0x8fe06e95 in __dyld__ZN4dyld14bindLazySymbolEPK11mach_headerPm ()
> #3  0x8fe18acf in __dyld_stub_binding_helper_interface2 ()
> #4  0x00bd4a83 in Fsave (args=@0x3806c98) at load-save.cc:1757
> #5  0x00df5ffd in octave_builtin::do_multi_index_op () at basic_ios.h:144
> #6  0x00df56f4 in octave_builtin::subsref () at basic_ios.h:144
> #7  0x00dc4a03 in octave_value::subsref () at basic_ios.h:144
> #8  0x00f0bfe4 in tree_index_expression::rvalue () at basic_ios.h:144
> #9  0x00f32a83 in tree_statement::eval () at basic_ios.h:144
> #10 0x00f330b4 in tree_statement_list::eval () at basic_ios.h:144
> #11 0x00d1c9b4 in main_loop () at basic_ios.h:144
> #12 0x00ca4726 in octave_main () at basic_ios.h:144
> #13 0x00001ff0 in main ()
> #14 0x00001f96 in start ()
>
> where  line 1757 is at...
>
>             {
>               std::ofstream file (fname.c_str (), mode);
>
>               if (file)   <============= line 1757
>                 {
>                   bool write_header_info = ! file.tellp ();
>
>                   save_vars (argv, i, argc, file, format,
>                              save_as_floats, write_header_info);
>
>                   file.close ();
>                 }
>               else
>                 {
>                   gripe_file_open ("save", fname);
>                   return retval;
>                 }
>             }
>         }
>     }
>
>
> Any suggestions on how that could be rewritten?
>   
Don't know how to work around the issue.. But why not at least try "if
(file.is_open ())", and if that doesn't work a try the "good", "bad",
"fail" and "eof" methods that might help working around the compiler bug

D.

-- 

David Bateman                                David.Bateman at motorola.com
Motorola Labs - Paris                        +33 1 69 35 48 04 (Ph) 
Parc Les Algorithmes, Commune de St Aubin    +33 6 72 01 06 33 (Mob) 
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