id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
1588	[program_options] crashes if value part missing in external configuration file	darren@…	Vladimir Prus	"NOTE: boost::program_options has a serious bug, so it'll crash if the value part of a setting is missing.
E.g. the below snippet at the end of my settings.ini file crashes if I uncomment the last line.
-------------
log_fname_info = info.log
log_fname_problems = problems.log
log_fname_status = status.log
#log_fname_verbose = 
-------------

I want to use a blank setting to mean ""no verbose log file"" in the above code. I've flagged it ""showstopper"" for this reason.

It crashes on windows XP, in both debug and release versions, and normal and static link builds. Not tested on linux yet.

Specifically, it seems to be happening in po.store(), and (on windows at least) it is caught as a std::exception (not a boost::program_options::invalid_option_value). e.what() just outputs ""!"". The exception is arising in kernel32.dll apparently.
"	Bugs	closed	To Be Determined	program_options	Boost 1.34.1	Showstopper	duplicate