10 May
2011
10 May
'11
2:52 p.m.
On 05/09/2011 03:24 AM, Lai Jiangshan wrote:
These VIR_XXXX0 APIs make us confused, use the non-0-suffix APIs instead.
How these coversions works? The magic is using ##. #define high_levle_api(fmt, ...) low_levle_api(fmt, ##__VA_ARGS__) When __VA_ARGS__ is empty, "##" will swallow the "," in "fmt," to avoid compile error.
##__VA_ARGS__ is a GNU extension; it does not work on all C99 compilers. I'm worried that this is not portable. -- Eric Blake eblake@redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org