[boost] Re: program_options lib: how to denote return values?

From: Vladimir Prus (ghost_at_[hidden])
Date: 2003-05-23 08:31:51

James Curran wrote:

> Chuck Messenger wrote:
>> OK, how about this syntax, to make it much more clear what is being
>> returned (and, at the same time, to reduce the verbiage):
>>
>>      desc.add_options()
>>          ...
>>          (param("magic|value|magic value for the program") >> magic)
>>          (param("val||some value with a default", defaultValue) >>
>>          val) ...
>>          ;
>>
> 
>     I'm still considering the merging of the strings, but I _do_ like the
>     >>
> syntax.  It clear indicating in the code what's going to be modified.

As for me, I'm a bit unsure about introducing new syntax. In this case, I'm
not sure overloading of >> is 100% intuitive --- one can assume that value
of "magic" is read from "param" result, for example.

- Volodya