* malloc/memusagestat.c (main): Use return instead of exit to

avoid warning. 
* io/pwd.c (main): Likewise. 
* iconvdata/tst-table-from.c (main): Likewise. 
* ctype/test_ctype.c (main): Likewise. 
* setjmp/tst-setjmp.c (main): Likewise. 
* signal/tst-signal.c (main): Likewise. 
* stdlib/tst-strtol.c (main): Likewise. 
* stdlib/tst-strtod.c (main): Likewise. 
* stdlib/tst-strtoll.c (main): Likewise. 
* stdlib/tst-xpg-basename.c (main): Likewise. 
* dirent/tst-seekdir.c (main): Likewise. 
* grp/testgrp.c (main): Likewise. 
* inet/test_ifindex.c (main): Likewise. 
* io/test-utime.c (main): Likewise. 
* posix/test-vfork.c (main): Likewise. 
* posix/testfnm.c (main): Likewise. 
* stdio-common/temptest.c (main): Likewise. 
* stdio-common/test_rdwr.c (main): Likewise. 
* stdio-common/tst-fileno.c (main): Likewise. 
* stdio-common/tst-sscanf.c (main): Likewise. 
* stdio-common/tstscanf.c (main): Likewise. 
* string/bug-strncat1.c (main): Likewise. 
* string/bug-strpbrk1.c (main): Likewise. 
* string/bug-strspn1.c (main): Likewise. 
* string/test-ffs.c (main): Likewise. 
* string/tst-inlcall.c (main): Likewise. 
* string/tst-svc.c (main): Likewise. 
* timezone/test-tz.c (main): Likewise. 
* wctype/test_wcfuncs.c (main): Likewise. 
* wctype/test_wctype.c (main): Likewise.
	* stdlib/tst-random.c: Add attribute noreturn to fail.

31 files changed, 61 insertions, 56 deletions

diff --git a/ctype/test_ctype.c b/ctype/test_ctype.c
index a1f72492eb..ebebe8f297 100644
--- a/ctype/test_ctype.c
+++ b/ctype/test_ctype.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1994, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1994, 1996, 1997, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -97,5 +97,5 @@ main (int argc, char **argv)
   TRYEM;
 #undef TRY
 
-  exit (lose ? EXIT_FAILURE : EXIT_SUCCESS);
+  return lose ? EXIT_FAILURE : EXIT_SUCCESS;
 }
diff --git a/dirent/tst-seekdir.c b/dirent/tst-seekdir.c
index 5a5c7fdd36..f4d99ae632 100644
--- a/dirent/tst-seekdir.c
+++ b/dirent/tst-seekdir.c
@@ -38,5 +38,5 @@ main (int argc, char *argv[])
 
 
   closedir (dirp);
-  exit(0);
+  return 0;
 }
diff --git a/grp/testgrp.c b/grp/testgrp.c
index 62ba4e4a62..892cfaaa21 100644
--- a/grp/testgrp.c
+++ b/grp/testgrp.c
@@ -37,5 +37,5 @@ main (int argc, char *argv[])
 	}
     }
 
-  exit (my_passwd && my_group ? EXIT_SUCCESS : EXIT_FAILURE);
+  return my_passwd && my_group ? EXIT_SUCCESS : EXIT_FAILURE;
 }
diff --git a/iconvdata/tst-table-from.c b/iconvdata/tst-table-from.c
index fb4934f0de..5a2fa9d47a 100644
--- a/iconvdata/tst-table-from.c
+++ b/iconvdata/tst-table-from.c
@@ -222,5 +222,5 @@ main (int argc, char *argv[])
       exit (1);
     }
 
-  exit (0);
+  return 0;
 }
diff --git a/inet/test_ifindex.c b/inet/test_ifindex.c
index 0441bf0feb..62a7326b9e 100644
--- a/inet/test_ifindex.c
+++ b/inet/test_ifindex.c
@@ -1,5 +1,5 @@
 /* Test interface name <-> index conversions.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Philip Blundell <Philip.Blundell@pobox.com>.
 
@@ -61,5 +61,5 @@ main (void)
       failures += result;
     }
   if_freenameindex (idx);
-  exit (failures ? 1 : 0);
+  return failures ? 1 : 0;
 }
diff --git a/io/pwd.c b/io/pwd.c
index 21f4e51541..1624dc49a3 100644
--- a/io/pwd.c
+++ b/io/pwd.c
@@ -39,5 +39,5 @@ main (void)
       free (dir);
     }
 
-  exit (dir == NULL ? EXIT_FAILURE : EXIT_SUCCESS);
+  return (dir == NULL ? EXIT_FAILURE : EXIT_SUCCESS);
 }
diff --git a/io/test-utime.c b/io/test-utime.c
index 8dbbcf990d..6828d00581 100644
--- a/io/test-utime.c
+++ b/io/test-utime.c
@@ -37,14 +37,14 @@ main (int argc, char *argv[])
   if (tmpnam (file) == 0)
     {
       perror ("tmpnam");
-      exit (1);
+      return 1;
     }
 
   fd = creat (file, 0666);
   if (fd < 0)
     {
       perror ("creat");
-      exit (1);
+      return 1;
     }
   close (fd);
 
@@ -55,14 +55,14 @@ main (int argc, char *argv[])
     {
       perror ("utime");
       remove (file);
-      exit (1);
+      return 1;
     }
 
   if (stat (file, &st))
     {
       perror ("stat");
       remove (file);
-      exit (1);
+      return 1;
     }
 
   /* Test utime with NULL.
@@ -73,14 +73,14 @@ main (int argc, char *argv[])
     {
       perror ("time");
       remove (file);
-      exit (1);
+      return 1;
     }
 
   if (utime (file, NULL))
     {
       perror ("utime NULL");
       remove (file);
-      exit (1);
+      return 1;
     }
 
   now2 = time (NULL);
@@ -88,14 +88,14 @@ main (int argc, char *argv[])
     {
       perror ("time");
       remove (file);
-      exit (1);
+      return 1;
     }
 
   if (stat (file, &stnow))
     {
       perror ("stat");
       remove (file);
-      exit (1);
+      return 1;
     }
 
   remove (file);
@@ -103,27 +103,27 @@ main (int argc, char *argv[])
   if (st.st_mtime != ut.modtime)
     {
       printf ("modtime %ld != %ld\n", st.st_mtime, ut.modtime);
-      exit (1);
+      return 1;
     }
 
   if (st.st_atime != ut.actime)
     {
       printf ("actime %ld != %ld\n", st.st_atime, ut.actime);
-      exit (1);
+      return 1;
     }
 
   if (stnow.st_mtime < now1 || stnow.st_mtime > now2)
     {
       printf ("modtime %ld <%ld >%ld\n", st.st_mtime, now1, now2);
-      exit (1);
+      return 1;
     }
 
   if (stnow.st_atime < now1 || stnow.st_atime > now2)
     {
       printf ("actime %ld <%ld >%ld\n", st.st_atime, now1, now2);
-      exit (1);
+      return 1;
     }
 
   puts ("Test succeeded.");
-  exit (0);
+  return 0;
 }
diff --git a/malloc/memusagestat.c b/malloc/memusagestat.c
index 1da0ff0ce9..0b01a1d6b5 100644
--- a/malloc/memusagestat.c
+++ b/malloc/memusagestat.c
@@ -550,7 +550,7 @@ main (int argc, char *argv[])
 
   gdImageDestroy (im_out);
 
-  exit (0);
+  return 0;
 }
 
 
diff --git a/posix/test-vfork.c b/posix/test-vfork.c
index 66c17c3d90..dd2b1c7727 100644
--- a/posix/test-vfork.c
+++ b/posix/test-vfork.c
@@ -32,7 +32,8 @@ main (void)
   if (waitpid (0, &status, 0) != pid
       || !WIFEXITED (status) || WEXITSTATUS (status) != NR)
     exit (1);
-  exit (0);
+
+  return 0;
 }
 
 void
diff --git a/posix/testfnm.c b/posix/testfnm.c
index a8b85c56ad..b735a26579 100644
--- a/posix/testfnm.c
+++ b/posix/testfnm.c
@@ -77,5 +77,5 @@ main (void)
 	++errors ;
     }
 
-  exit (errors != 0);
+  return errors != 0;
 }
diff --git a/setjmp/tst-setjmp.c b/setjmp/tst-setjmp.c
index 90dac0585c..c1efca5410 100644
--- a/setjmp/tst-setjmp.c
+++ b/setjmp/tst-setjmp.c
@@ -113,5 +113,6 @@ main (void)
     puts ("Test FAILED!");
   else
     puts ("Test succeeded!");
-  exit (lose ? EXIT_FAILURE : EXIT_SUCCESS);
+
+  return lose ? EXIT_FAILURE : EXIT_SUCCESS;
 }
diff --git a/signal/tst-signal.c b/signal/tst-signal.c
index ef792e8cbf..6d3178792a 100644
--- a/signal/tst-signal.c
+++ b/signal/tst-signal.c
@@ -39,5 +39,6 @@ main (void)
     }
 
   puts ("Got a signal.  Test succeeded.");
-  exit (EXIT_SUCCESS);
+
+  return EXIT_SUCCESS;
 }
diff --git a/stdio-common/temptest.c b/stdio-common/temptest.c
index ec8e179f03..c8cf8529f1 100644
--- a/stdio-common/temptest.c
+++ b/stdio-common/temptest.c
@@ -24,5 +24,5 @@ main (int argc, char *argv[])
   for (i = 0; i < 500; i++)
     remove (files[i]);
 
-  exit (0);
+  return 0;
 }
diff --git a/stdio-common/test_rdwr.c b/stdio-common/test_rdwr.c
index a3b01b7c7c..477069bb5a 100644
--- a/stdio-common/test_rdwr.c
+++ b/stdio-common/test_rdwr.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1992, 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1991,1992,1996,1997,1998,2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -125,5 +125,5 @@ main (int argc, char **argv)
       puts ("Test succeeded.");
     }
 
-  exit (lose ? EXIT_FAILURE : EXIT_SUCCESS);
+  return lose ? EXIT_FAILURE : EXIT_SUCCESS;
 }
diff --git a/stdio-common/tst-fileno.c b/stdio-common/tst-fileno.c
index 79c768d732..3cc37a9876 100644
--- a/stdio-common/tst-fileno.c
+++ b/stdio-common/tst-fileno.c
@@ -24,14 +24,15 @@ static int
 check (const char *name, FILE *stream, int fd)
 {
   int sfd = fileno (stream);
-  printf ("(fileno (%s) = %d) %c= %d\n", name, sfd, sfd == fd ? '=' : '!', fd);
+  printf ("(fileno (%s) = %d) %c= %d\n", name, sfd,
+	  sfd == fd ? '=' : '!', fd);
   return sfd != fd;
 }
 
 int
 main (void)
 {
-  exit (check ("stdin", stdin, STDIN_FILENO) ||
-	check ("stdout", stdout, STDOUT_FILENO) ||
-	check ("stderr", stderr, STDERR_FILENO));
+  return (check ("stdin", stdin, STDIN_FILENO) ||
+	  check ("stdout", stdout, STDOUT_FILENO) ||
+	  check ("stderr", stderr, STDERR_FILENO));
 }
diff --git a/stdio-common/tst-sscanf.c b/stdio-common/tst-sscanf.c
index c0d3c36f4b..d5a0397559 100644
--- a/stdio-common/tst-sscanf.c
+++ b/stdio-common/tst-sscanf.c
@@ -117,5 +117,6 @@ main (void)
       if (! tst_locale)
 	break;
     }
-  exit (result);
+
+  return result;
 }
diff --git a/stdio-common/tstscanf.c b/stdio-common/tstscanf.c
index 6cf5738416..827f5adcc8 100644
--- a/stdio-common/tstscanf.c
+++ b/stdio-common/tstscanf.c
@@ -305,5 +305,5 @@ main (int argc, char **argv)
       }
   }
 
-  exit (result);
+  return result;
 }
diff --git a/stdlib/tst-random.c b/stdlib/tst-random.c
index 3453d794c4..2cc8e9c60c 100644
--- a/stdlib/tst-random.c
+++ b/stdlib/tst-random.c
@@ -44,7 +44,7 @@ const int nseq = 3;		/* number of test sequences */
 const int nrnd = 50;		/* length of each test sequence */
 const unsigned int seed[3] = { 0x12344321U, 0xEE11DD22U, 0xFEDCBA98 };
 
-void fail (const char *msg, int s, int i);
+void fail (const char *msg, int s, int i) __attribute__ ((__noreturn__));
 
 int
 main (void)
diff --git a/stdlib/tst-strtod.c b/stdlib/tst-strtod.c
index ffd3975020..01c454261f 100644
--- a/stdlib/tst-strtod.c
+++ b/stdlib/tst-strtod.c
@@ -117,7 +117,7 @@ main (int argc, char ** argv)
 
   status |= long_dbl ();
 
-  exit (status ? EXIT_FAILURE : EXIT_SUCCESS);
+  return status ? EXIT_FAILURE : EXIT_SUCCESS;
 }
 
 static void
diff --git a/stdlib/tst-strtol.c b/stdlib/tst-strtol.c
index ae8fdd4905..db065d6f0a 100644
--- a/stdlib/tst-strtol.c
+++ b/stdlib/tst-strtol.c
@@ -169,7 +169,7 @@ main (void)
 	}
     }
 
-  exit (status ? EXIT_FAILURE : EXIT_SUCCESS);
+  return status ? EXIT_FAILURE : EXIT_SUCCESS;
 }
 
 static void
diff --git a/stdlib/tst-strtoll.c b/stdlib/tst-strtoll.c
index 1cc72823b6..9007488d80 100644
--- a/stdlib/tst-strtoll.c
+++ b/stdlib/tst-strtoll.c
@@ -157,7 +157,7 @@ main (void)
 	}
     }
 
-  exit (status ? EXIT_FAILURE : EXIT_SUCCESS);
+  return status ? EXIT_FAILURE : EXIT_SUCCESS;
 }
 
 static void
diff --git a/stdlib/tst-xpg-basename.c b/stdlib/tst-xpg-basename.c
index 12067e702d..8e2d965394 100644
--- a/stdlib/tst-xpg-basename.c
+++ b/stdlib/tst-xpg-basename.c
@@ -63,5 +63,5 @@ main (void)
 	}
     }
 
-  exit (errors);
+  return errors;
 }
diff --git a/string/bug-strncat1.c b/string/bug-strncat1.c
index 3491aa7d1f..f1b5c37c5c 100644
--- a/string/bug-strncat1.c
+++ b/string/bug-strncat1.c
@@ -27,5 +27,5 @@ main (void)
       exit (1);
     }
 
-  exit (0);
+  return 0;
 }
diff --git a/string/bug-strpbrk1.c b/string/bug-strpbrk1.c
index 3fdc930c3e..28238b0f50 100644
--- a/string/bug-strpbrk1.c
+++ b/string/bug-strpbrk1.c
@@ -13,7 +13,7 @@ main (void)
 
   strpbrk (b++, "");
   if (b != a + 1)
-    exit (1);
+    return 1;
 
-  exit (0);
+  return 0;
 }
diff --git a/string/bug-strspn1.c b/string/bug-strspn1.c
index f637b97ef0..a657bafc43 100644
--- a/string/bug-strspn1.c
+++ b/string/bug-strspn1.c
@@ -13,7 +13,7 @@ main (void)
 
   strspn (b++, "");
   if (b != a + 1)
-    exit (1);
+    return 1;
 
-  exit (0);
+  return 0;
 }
diff --git a/string/test-ffs.c b/string/test-ffs.c
index 8d46d4e076..9bc0796a1e 100644
--- a/string/test-ffs.c
+++ b/string/test-ffs.c
@@ -29,7 +29,7 @@ main (void)
   int i;
 
   auto void try (int value, int expected);
-  
+
   void try (int value, int expected)
     {
       if (ffs (value) != expected)
@@ -52,5 +52,5 @@ main (void)
   else
     puts ("Test succeeded.");
 
-  exit (failures);
+  return failures;
 }
diff --git a/string/tst-inlcall.c b/string/tst-inlcall.c
index 1e39ee4870..3557bff84f 100644
--- a/string/tst-inlcall.c
+++ b/string/tst-inlcall.c
@@ -1,5 +1,5 @@
 /* Tester for calling inline string functions.
-   Copyright (C) 1998 Free Software Foundation, Inc.
+   Copyright (C) 1998, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -40,7 +40,7 @@ main (void)
   char buf1[1000];
   char *cp;
   char ch;
-  
+
   cp = strcpy (buf1, "hello world");
   if (strcmp ("hello world", cp++) != 0)
     {
@@ -72,5 +72,5 @@ main (void)
       status = EXIT_FAILURE;
       printf ("%d errors.\n", errors);
     }
-  exit (status);
+  return status;
 }
diff --git a/string/tst-svc.c b/string/tst-svc.c
index 30a161e70a..1ee5342aa9 100644
--- a/string/tst-svc.c
+++ b/string/tst-svc.c
@@ -41,5 +41,5 @@ main (int argc, char *argv[])
   for (i = 0; i < count; ++i)
     puts (str[i]);
 
-  exit (EXIT_SUCCESS);
+  return EXIT_SUCCESS;
 }
diff --git a/timezone/test-tz.c b/timezone/test-tz.c
index af37d8ae6a..642b45a0ed 100644
--- a/timezone/test-tz.c
+++ b/timezone/test-tz.c
@@ -46,11 +46,11 @@ main (int argc, char ** argv)
   if (errors == 0)
     {
       puts ("No errors.");
-      exit (EXIT_SUCCESS);
+      return EXIT_SUCCESS;
     }
   else
     {
       printf ("%d errors.\n", errors);
-      exit (EXIT_FAILURE);
+      return EXIT_FAILURE;
     }
 }
diff --git a/wctype/test_wcfuncs.c b/wctype/test_wcfuncs.c
index 61328ea22d..8e4c2823b4 100644
--- a/wctype/test_wcfuncs.c
+++ b/wctype/test_wcfuncs.c
@@ -84,5 +84,5 @@ main (int argc, char *argv[])
 
   if (result == 0)
     puts ("All test successful!");
-  exit (result);
+  return result != 0;
 }
diff --git a/wctype/test_wctype.c b/wctype/test_wctype.c
index 1c9bf5aa3b..e1fa45a1e5 100644
--- a/wctype/test_wctype.c
+++ b/wctype/test_wctype.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -79,5 +79,5 @@ main (int argc, char *argv[])
 
   if (result == 0)
     puts ("All test successful!");
-  exit (result);
+  return result;
 }