diff options
Diffstat (limited to 'lib/libc/stdlib/tsearch.3')
| -rw-r--r-- | lib/libc/stdlib/tsearch.3 | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/libc/stdlib/tsearch.3 b/lib/libc/stdlib/tsearch.3 index 0c7f1bd..ea0a9da 100644 --- a/lib/libc/stdlib/tsearch.3 +++ b/lib/libc/stdlib/tsearch.3 @@ -51,7 +51,8 @@ The and .Fn twalk functions manage binary search trees based on algorithms T and D -from Knuth (6.2.2). The comparison function passed in by +from Knuth (6.2.2). +The comparison function passed in by the user has the same style of return values as .Xr strcmp 3 . .Pp @@ -72,7 +73,8 @@ is identical to .Fn tfind except that if no match is found, .Fa key -is inserted into the tree and a pointer to it is returned. If +is inserted into the tree and a pointer to it is returned. +If .Fa rootp points to a NULL value a new binary search tree is created. .Pp |
