id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
4133	std::logic_error as a base class for program_options::error	anonymous	Vladimir Prus	"""19.1 Exception classes

1 The Standard C  +  + library provides classes to be used to report certain errors (17.4.4.8) in C  +  + programs. In
the error model reflected in these classes, errors are divided into two broad categories: logic errors and
runtime errors.

2 The distinguishing characteristic of logic errors is that they are due to errors in the internal logic of the pro-
gram. In theory, they are preventable.

3 By contrast, runtime errors are due to events beyond the scope of the program. They cannot be easily pre-
dicted in advance. The header <stdexcept> defines several types of predefined exceptions for reporting
errors in a C  +  + program. These exceptions are related by inheritance.""

From what POV po::unknown_option is 'due to errors in the internal logic of the program'? All po:: errors should be separated into two groups (runtime and logic) or std::exception should be used as a base class."	Bugs	new	Boost 1.43.0	program_options	Boost 1.42.0	Problem