id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
8720	Fix for boost serialisation, portable binary archive on AIX	avi.bahra@…	Robert Ramey	"On most platforms, char is signed, however on AIX by default char is unsigned.
The portable binary archive assumes the char type is signed.

The fix is simply to replace 'char' with 'signed char' in the correct places.

This is a fairly safe and quick fix, can I please ask the authors of this
library to add this fix, for the next version of boost.

Here are the changes I made: (flagged under ' // changed ' comment
//--------------------------------------------------------
portable_binary_iarchive.hpp

   void load(signed char & t){  // changed
        this->primitive_base_t::load(t);
    }

//-------------------------------------------------------------
portable_binary_iarchive.cpp

void
portable_binary_iarchive::load_impl(boost::intmax_t & l, char maxsize){
    signed char size;        // changed
    l = 0;
    this->primitive_base_t::load(size);

    if(0 == size){
        return;
    }

    bool negative = (size < 0);
    ......

// -----------------------------------------------------------------
portable_binary_oarchive.hpp

  void save(const signed char & t){      // changed
        this->primitive_base_t::save(t);
    }

// -----------------------------------------------------------
portable_binary_oarchive.cpp

void
portable_binary_oarchive::save_impl(
    const boost::intmax_t l,
    const char maxsize
){
    signed char size = 0;       // changed

    if(l == 0){
        this->primitive_base_t::save(size);
        return;
    }

 ..........
"	Bugs	new	To Be Determined	serialization	Boost 1.52.0	Showstopper		PORTABLE_BINARY_ARCHIVE