id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
3118	[Serialization] basic_binary_oarchive.hpp - save_override possible loss of data warnings	jflinn@…	Robert Ramey	"The following save_override overloads cause possible loss of data warnings on MSVC8 and XCode3.1.2/gcc4.0.1

  void save_override(const version_type & t, int)
  void save_override(const class_id_type & t, int)
  void save_override(const class_id_reference_type & t, int)

with their respective assignments:

  const unsigned char x = t.t;
  const int_least16_t x = t.t;

While a possible fix would be:

  const unsigned char x = static_cast<unsigned char>(t.t);
  const int_least16_t x = static_cast<int_least16_t>(t.t);

there is still a possibility of a silent loss of data.

We could be safer and use numeric_cast, but that would possibly impact code size and performance. 

Why are the xxx_type strong typedef's using int rather than the smaller types that are being serialized? 






"	Bugs	closed	Boost 1.40.0	serialization	Boost 1.39.0	Problem	fixed	Serialization, warning