From 222995312581c9e9f620c3441965ae27ea72df40 Mon Sep 17 00:00:00 2001
From: Bill-Gray <pluto@projectpluto.com>
Date: Mon, 1 Jul 2024 09:56:02 -0400
Subject: [PATCH] 'mergetle' sorted NORAD numbers lexicographically rather than
 numerically.  Leading zeroes could cause confusion (e.g., '03141' wasn't
 considered equal to ' 3141').

---
 mergetle.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mergetle.cpp b/mergetle.cpp
index b747f15..1a28eb3 100644
--- a/mergetle.cpp
+++ b/mergetle.cpp
@@ -114,8 +114,7 @@ int tle_compare( const TLE *tle1, const TLE *tle2, const char sort_method)
    switch( sort_method)
       {
       case 'n': case 'N':        /* sort by NORAD number */
-         for( i = 2; !rval && i < 8; i++)
-            rval = tle1->line1[i] - tle2->line1[i];
+         rval = atoi( tle1->line1 + 2) - atoi( tle2->line1 + 2);
          break;
       case 'c': case 'C':        /* sort by COSPAR (international) desig */
          if( tle1->line1[9] >= '5' && tle2->line1[9] < '5')