Re: {pkgsrc-users} need help with C# -- how to deal with different time_t widths?

[Brian de Alwis <bsd%cs.ubc.ca@localhost>]

Hi Matthias.

On 7-Sep-2009, at 7:18 AM, Matthias Drochner wrote:
> The appended patch fixes the problem for me (on i386-current) but
> this needs to be done in a portable way.

You didn't append a patch.

> So we need either a C# type which is equivalent to a time_t,
> or conditionals.
> I'm absolutely clueless about C# -- How can this be done?


Like Java, C# has standard types that don't vary in size depending on  
the architecture.  There are ushort (equivalent to System.UInt16),  
uint (System.UInt32), and ulong (System.UInt64), and their  
corresponding signed types short (System.Int16), int (System.Int32),  
and long (System.Int64).  The lower-case are the primitive types, and  
the System.* are their corresponding classes; C# will automatically  
box/unbox them as necessary.

C# does have a conditional compilation like C, though nothing like C's  
#define or typedef.  So you could do something like:

#if TIMET_IS_32BITS
        UInt32 blah;
#else
        UInt64 blah;
#endif

and provide the define during compilation.

Brian.

--
"Amusement to an observing mind is study." - Benjamin Disraeli