Add comment to pg_atoi.

diff --git a/src/backend/utils/adt/numutils.c b/src/backend/utils/adt/numutils.c
index 994e30b51a3386e4747e947a524ecdeb89a6debb..6d27160e0396490276d9a2a57f46228f499612e6 100644 (file)
--- a/src/backend/utils/adt/numutils.c
+++ b/src/backend/utils/adt/numutils.c
@@ -10,7 +10,7 @@
  *
  *
  * IDENTIFICATION
- *   $PostgreSQL: pgsql/src/backend/utils/adt/numutils.c,v 1.70 2005/11/30 23:10:08 tgl Exp $
+ *   $PostgreSQL: pgsql/src/backend/utils/adt/numutils.c,v 1.71 2005/12/01 21:16:13 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -73,7 +73,7 @@ pg_atoi(char *s, int size, int c)
                 errmsg("invalid input syntax for integer: \"%s\"",
                        s)));
 
-   errno = 0;
+   errno = 0;  /* avoid having to check the result for failure */
    l = strtol(s, &badp, 10);
 
    /* We made no progress parsing the string, so bail out */