[quagga-dev 4375] Re: bgpd printf size_t warning
gdt at ir.bbn.com
Wed Sep 20 15:47:11 BST 2006
Understood. I'm not trying to be difficult, just trying to arrive
at a consensus on the canonically correct way to printf a size_t
(until such time as %z is available on all supported platforms).
Is there some better way then using %lu and casting to (u_long)?
Absent %z, I think that's the best thing to do (assuming u_long is a
quagga typedef for unsigned long). For %z, we need to have a
rational documented decision as to platform requirements. This seems
to be C99, based on the NetBSD printf(3) (which documents %z):
The fprintf(), printf(), sprintf(), vprintf(), vfprintf(), and vsprintf()
functions conform to ISO/IEC 9899:1990 (``ISO C90''). The conversion
format modifiers %j, %t and %z conform to ISO/IEC 9899:1999
(``ISO C99''). The snprintf() and vsnprintf() functions conform to
ISO/IEC 9899:1999 (``ISO C99'').
I just looked and we already claim to require C99.
Is %z unsupported on any platform quagga currently works on?
Greg Troxel <gdt at ir.bbn.com>
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