Add ability to have options that can be specified multiple times.

[GoogleCodeExporter]

Library looks nice, I especially like the options from files feature.

Sadly, I can't use it because I need to be able to specify some options 
multiple times.  This would be a great addition.

Nice work!

Original issue reported on code.google.com by [email protected] on 5 Sep 2013 at 6:04

[GoogleCodeExporter]

Hi Mark,

I agree that this would be a nice addition. Note that the Python gflags library 
already has this ability. Thus it would only be reasonable to support it for 
C++ as well.

I am guessing that the reason for not having it yet is that in C++ the original 
authors of the library wanted to have all flags initialized before static 
initialization time. As for a "multistring" flag, we would presumable use a STL 
vector of strings which is no POD, this would no longer be possible. I must say 
though that I am not clear why it would at all be necessary to have flags be 
initialized before static initialization. I don't think anybody should use the 
value of command-line flags in a constructor of a static object, in which case 
you can also just use another static constant for the default flag value which 
the flag will have at that time.

Andreas

Original comment by [email protected] on 7 Sep 2013 at 11:26

[GoogleCodeExporter]

Original comment by [email protected] on 20 Mar 2014 at 3:50

• Added labels: Milestone-v2.2