adds comment explaining u3a_minimum

This commit is contained in:
Joe Bryan 2019-01-29 16:46:09 -05:00
parent 74787c5eb8
commit b995984909

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@ -25,6 +25,8 @@
# define u3a_bytes (c3_w)((1 << (2 + u3a_bits)))
/* u3a_minimum: minimum number of words in a box.
**
** wiseof(u3a_cell) + wiseof(u3a_box) + 1 (trailing siz_w)
*/
#ifdef U3_MEMORY_DEBUG
# define u3a_minimum 8