Replaced plain 0's and 1's in exit statements with EXIT_SUCCESS or EXIT_FAILURE

samples/geos/getid.c

@@ -16,7 +16,7 @@ const graphicStr Table = {
 
 void Exit(void)
 {
-    exit(0);
+    exit(EXIT_SUCCESS);
 }
 
 void Menu = {

samples/geos/hello1.c

@@ -26,7 +26,7 @@ void main (void)
     //  MainLoop();
     // we can do:
     //  (nothing as this is the end of main function)
-    //  exit(0);
+    //  exit(EXIT_SUCCESS);
     //  return;
 
     return;

samples/geos/hello2.c

@@ -44,7 +44,7 @@ void main (void)
     //  MainLoop();
     // we can do:
     //  (nothing as this is the end of main function)
-    //  exit(0);
+    //  exit(EXIT_SUCCESS);
     //  return;
 
     return;

test/ref/hanoi.c

@@ -62,7 +62,7 @@ int main(int argc,char **argv)
         #ifdef USECMDLINE
         if (argc < 2) {
                 printf("Usage: %s [duration] [disks]\n", argv[0]);
-                exit(1);
+                exit(EXIT_FAILURE);
         }
         else
         {

test/ref/wf1.c

@@ -45,7 +45,7 @@ err(s) char *s; {
 int err(char *s) {
 #endif
         printf("? %s\n", s);
-        exit(1);
+        exit(EXIT_FAILURE);
 }
 
 /* getword - get next input word into buf, return 0 on EOF */

testcode/lib/getopt-test.c

@@ -22,6 +22,8 @@
 #define BADCH    '?'
 #define ENDARGS  "--"
 
+#define NUMARGS 2
+
 int main (int argc, char **argv)
 {
     char *optstring = argv[1];
@@ -34,9 +36,9 @@ int main (int argc, char **argv)
 
     char *opi;
 
-    if (argc == 1) {
+    if (argc != NUMARGS) {
         fprintf (stderr, "Usage: %s optstring args\n", argv0);
-        exit (1);
+        exit (EXIT_FAILURE);
     }
     argv++;
     argc--;

testcode/lib/shift-test.c

@@ -58,7 +58,7 @@ static void TestUnsignedLeftShift (void)
                 fprintf (stderr,
                          "Failed: %u << %u != %u (%u)\n",
                          L, R, V, L << R);
-                exit (1);
+                exit (EXIT_FAILURE);
             }
             V = UnsignedShiftLeft1 (V);
         }
@@ -85,7 +85,7 @@ static void TestUnsignedRightShift (void)
                 fprintf (stderr,
                          "Failed: %u >> %u != %u (%u)\n",
                          L, R, V, L >> R);
-                exit (1);
+                exit (EXIT_FAILURE);
             }
             V = UnsignedShiftRight1 (V);
         }
@@ -112,7 +112,7 @@ static void TestSignedRightShift (void)
                 fprintf (stderr,
                          "Failed: %d >> %d != %d (%d)\n",
                          L, R, V, L >> R);
-                exit (1);
+                exit (EXIT_FAILURE);
             }
             V = SignedShiftRight1 (V);
         }