Re: [Boost-users] time_duration compile warning

From: Jeff Garland (jeff_at_[hidden])
Date: 2006-10-21 11:47:01

Leon Mergen wrote:
> Hello,

Hi, sorry for the slow reply...

> I'm using GCC 4.0.2 20050808 (prerelease) (Ubuntu 4.0.1-4ubuntu9), and 
> the time_duration class was generating the following warning for me:
> 
> /usr/local/include/boost/boost/date_time/time_duration.hpp:58: warning: 
> control may reach end of non-void function
>
> I've heard that I wasn't the first person with this problem, and well, 
> since I like my code to compile clean (treat warnings as errors), this 
> was preventing me to do so.
> 
> Apparently GCC had some troubles with seeing that the static tick_type 
> to_tick_count () function defined at time_resolution_traits.hpp was 
> always returning something. Simply moving the code inside the else {} 
> block to the end of the function made GCC confident that the function 
> was indeed always returning something. Looks more like a GCC bug, but 
> here's the patch:

I'll try to apply the patch in the near future -- I'll let you know when 
I do.  However, please submit a gcc bug as this is clearly a compiler bug.

Jeff