Re: [Boost-users] compile-time string literal manipulation?

Subject: Re: [Boost-users] compile-time string literal manipulation?
From: Cromwell Enage (sponage_at_[hidden])
Date: 2010-10-29 12:04:55

> Question. For the example given at the link above, it has
> 
> typedef mpl::string<'hell','o wo','rld'> hello;

That's weird.

> Why would it not be
> 
> typedef mpl::string<'h','e','l','l','o',
> ' ','w','o','r','l','d'> hello;
> 

I would think this was correct, as well.

> OR if the example is correct, why could you not simply do
> 
> typedef mpl::string<'hello world'> hello;

Non-type template arguments can only be constant integers or (maybe in this case) multi-byte characters.  A four-byte character value might be the standard limit here.  (To be honest, I haven't really worked with Unicode or anything else beyond one-byte characters.  Someone else may have a better answer for you.)

Cromwell D. Enage