Joaquín Mª López Muñoz ha escrito:
Edson Tadeu reports on the following post
http://lists.boost.org/boost-users/2006/05/19723.php
about this bug in Boost.Format: line 138 of boost/format/format_implementation.hpp
if( bound_.size()==0 || !bound_[ items_[i].argN_ ] )
can try to invalidly evaluate bound_[...] on vector bound_ with a negative index, which happens when items_[i].argN_ is one of the special values
enum arg_values { argN_no_posit = -1, // non-positional directive. will set argN later
argN_tabulation = -2, // tabulation directive. (no argument read) argN_ignored = -3 // ignored directive. (no argument read) };
as defined in boost/format/internals.hpp. The attached patches to boost/format/format_implementation.hpp and libs/format/test/format_test3.cpp avoid the invalid negative indexing and add a testcase for the problem, respectively.
Any objections to my commiting? If there's no comment I'll be doing it tomorrow.
Commited, both in HEAD and RC_1_34_0. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo