fmtB
static const char fmtB[] = "%p0%{10}%/%{16}%*%p0%{10}%m%+";
if (l + sizeof(fmtB) > len)
memcpy(ip, fmtB, sizeof(fmtB) - 1);
ip += sizeof(fmtB) - 1;
l += sizeof(fmtB) - 1;
#define FMTBSIZE sizeof(struct fmtB)