Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
This is an older version of Boost and was released in 2015. The current version is 1.92.0.
Parameter help displays help on the framework's parameters. The parameter accepts an optional argument value. If present, an argument value is interpreted as a parameter name (name guessing works as well, so for example --help=rand displays help on the parameter random). If the parameter name is unknown or ambiguous error is reported. If argument value is absent, a summary of all framework's parameter is displayed.
An optional parameter name string.
--help[=<parameter
name>]