Permit finding length by passing no buffer. Not currently used.
Oops at most once.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
buf[0] = 0;
n = 0;
for (i = 0; i < 32; i++) {
buf[0] = 0;
n = 0;
for (i = 0; i < 32; i++) {
n += snprintf(buf + n, sz - n, "%s%s", sep, p);
else if (all)
n += snprintf(buf + n, sz - n, "%s#%d", sep, i);
n += snprintf(buf + n, sz - n, "%s%s", sep, p);
else if (all)
n += snprintf(buf + n, sz - n, "%s#%d", sep, i);
- if (CANT_HAPPEN((size_t)n >= sz)) {
- buf = NULL;
+
+ CANT_HAPPEN((size_t)n >= sz && buf);