[PATCH] tsearch.3: Simplify type usage and remove unneeded casts

[Alejandro Colomar <colomar.6.4.3@xxxxxxxxx>]

The type of `var` is `int **`, and it will work with tsearch()
anyway because of implicit cast from `void *`, so declaring it as an
`int **` simplifies the code.

Signed-off-by: Alejandro Colomar <colomar.6.4.3@xxxxxxxxx>
---
 man3/tsearch.3 | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/man3/tsearch.3 b/man3/tsearch.3
index 32ddb8127..65fcadc52 100644
--- a/man3/tsearch.3
+++ b/man3/tsearch.3
@@ -323,8 +323,7 @@ action(const void *nodep, VISIT which, int depth)
 int
 main(void)
 {
-    int i, *ptr;
-    void *val;
+    int i, *ptr, **val;
 
     srand(time(NULL));
     for (i = 0; i < 12; i++) {
@@ -333,7 +332,7 @@ main(void)
         val = tsearch((void *) ptr, &root, compare);
         if (val == NULL)
             exit(EXIT_FAILURE);
-        else if ((*(int **) val) != ptr)
+        else if (*val != ptr)
             free(ptr);
     }
     twalk(root, action);
-- 
2.28.0