On Sun, Jun 27, 2010 at 9:47 AM, Lawrence D'Oliveiro <l...@geek-central.gen.new_zealand> wrote: > In message <roy-854954.20435125062...@news.panix.com>, Roy Smith wrote: > >> I recently fixed a bug in some production code. The programmer was >> careful to use snprintf() to avoid buffer overflows. The only problem >> is, he wrote something along the lines of: >> >> snprintf(buf, strlen(foo), foo); > > A long while ago I came up with this macro: > > #define Descr(v) &v, sizeof v > > making the correct version of the above become > > snprintf(Descr(buf), foo); >
Not quite right. If buf is a char array, as suggested by the use of sizeof, then you're not passing a char* to snprintf. You need to lose the & in your macro. -- regards, kushal -- http://mail.python.org/mailman/listinfo/python-list
