Bring comments back in sync with code.

diff --git a/src/backend/utils/adt/numutils.c b/src/backend/utils/adt/numutils.c
index 8adf3200dc602984ee58c8c40895b955a0e4b8e1..f14c10b8f526cc2070db0ce7a950fbe5f8909e92 100644 (file)
--- a/src/backend/utils/adt/numutils.c
+++ b/src/backend/utils/adt/numutils.c
@@ -11,7 +11,7 @@
  *
  *
  * IDENTIFICATION
- *   $Header: /cvsroot/pgsql/src/backend/utils/adt/numutils.c,v 1.52 2002/08/27 20:29:10 momjian Exp $
+ *   $Header: /cvsroot/pgsql/src/backend/utils/adt/numutils.c,v 1.53 2002/08/27 20:54:47 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -42,19 +42,29 @@
 #define SCHAR_MIN (-SCHAR_MAX-1)
 #endif
 
+
+/*
+ * pg_atoi: convert string to integer
+ *
+ * size is the sizeof() the desired integral result (1, 2, or 4 bytes).
+ *
+ * c, if not 0, is the terminator character that may appear after the
+ * integer.  If 0, the string must end after the integer.
+ *
+ * Unlike plain atoi(), this will throw elog() upon bad input format or
+ * overflow.
+ */
 int32
 pg_atoi(char *s, int size, int c)
 {
    long        l = 0;
    char       *badp = NULL;
 
-   Assert(s);
-
    errno = 0;
 
    /*
-    * Some versions of strtol treat the empty string as an error.  This
-    * code will explicitly return 0 for an empty string.
+    * Some versions of strtol treat the empty string as an error, but some
+    * seem not to.  Make an explicit test to be sure we catch it.
     */
 
    if (s == (char *) NULL)