Delete the redundant "nchild" member of struct roff_node, replacing

most uses by one, a few by two pointer checks, and only one by a
tiny loop - not only making data smaller, but code shorter as well.

This gets rid of an implicit invariant that confused both static
analysis tools and human auditors.  No functional change.

1 files changed, 0 insertions, 1 deletions

diff --git a/roff.h b/roff.h
index cbee3822..19ec50f4 100644
--- a/roff.h
+++ b/roff.h
@@ -93,7 +93,6 @@ struct	roff_node {
 	char		 *string;  /* TEXT */
 	const struct tbl_span *span; /* TBL */
 	const struct eqn *eqn;	   /* EQN */
-	int		  nchild;  /* Number of child nodes. */
 	int		  line;    /* Input file line number. */
 	int		  pos;     /* Input file column number. */
 	int		  tok;     /* Request or macro ID. */