Fixed some exit calls.

28 files changed, 140 insertions, 168 deletions

diff --git a/test/bittests.c b/test/bittests.c
index e29c188..046528a 100644
--- a/test/bittests.c
+++ b/test/bittests.c
@@ -895,13 +895,11 @@ test_clear (void)
 
 
 /*-------------------------------------------------------------------------
- * Function:	main
+ * Function:    main
  *
  * Purpose:
  *
- * Return:	Success:
- *
- *		Failure:
+ * Return:      EXIT_SUCCESS/EXIT_FAILURE
  *
  * Programmer:	Robb Matzke
  *              Tuesday, June 16, 1998
@@ -911,7 +909,7 @@ test_clear (void)
 int
 main(void)
 {
-    int	nerrors = 0;
+    int nerrors = 0;
 
     /*
      * Open the library explicitly.
@@ -930,12 +928,12 @@ main(void)
     if(nerrors) {
         HDprintf("***** %u FAILURE%s! *****\n",
                nerrors, 1 == nerrors ? "" : "S");
-        exit(EXIT_FAILURE);
+        HDexit(EXIT_FAILURE);
     }
     HDprintf("All bit tests passed.\n");
 
     H5close();
 
-    return 0;
-}
+    HDexit(EXIT_SUCCESS);
+} /* end main() */
 
diff --git a/test/del_many_dense_attrs.c b/test/del_many_dense_attrs.c
index d88045c..ada7a6f 100644
--- a/test/del_many_dense_attrs.c
+++ b/test/del_many_dense_attrs.c
@@ -41,7 +41,7 @@ const char *FILENAME[] = {
  */
 static void catch_signal(int H5_ATTR_UNUSED signo)
 {
-    HDexit(1);
+    HDexit(EXIT_FAILURE);
 } /* catch_signal() */
 
 
diff --git a/test/dsets.c b/test/dsets.c
index 50a6907..649e001 100644
--- a/test/dsets.c
+++ b/test/dsets.c
@@ -13167,8 +13167,7 @@ error:
  *
  * Purpose:     Tests the dataset interface (H5D)
  *
- * Return:      Success:    exit(EXIT_SUCCESS)
- *              Failure:    exit(EXIT_FAILURE)
+ * Return:      EXIT_SUCCESS/EXIT_FAILURE
  *
  * Programmer:  Robb Matzke
  *              Tuesday, December  9, 1997
@@ -13388,12 +13387,12 @@ main(void)
 #endif /* H5_HAVE_FILTER_SZIP */
     h5_cleanup(FILENAME, fapl);
 
-    return EXIT_SUCCESS;
+    HDexit(EXIT_SUCCESS);
 
 error:
     nerrors = MAX(1, nerrors);
     HDprintf("***** %d DATASET TEST%s FAILED! *****\n",
             nerrors, 1 == nerrors ? "" : "S");
-    return EXIT_FAILURE;
+    HDexit(EXIT_FAILURE);
 } /* end main() */
 
diff --git a/test/extend.c b/test/extend.c
index f8c091b..a31ac0e 100644
--- a/test/extend.c
+++ b/test/extend.c
@@ -219,23 +219,15 @@ error:
 
 
 /*-------------------------------------------------------------------------
- * Function:	main
+ * Function:    main
  *
- * Purpose:	Tests extendible datasets
+ * Purpose:     Tests extendible datasets
  *
- * Return:	Success:	exit(0)
- *
- *		Failure:	exit(non-zero)
+ * Return:      EXIT_SUCCESS/EXIT_FAILURE
  *
  * Programmer:	Robb Matzke
  *              Friday, January 30, 1998
  *
- * Modifications:
- *              Took main data code out into write_data() routine, to allow
- *              different dataset creation property list settings to be tested.
- *              Quincey Koziol
- *              Tuesday, June 10, 2003
- *
  *-------------------------------------------------------------------------
  */
 int
@@ -290,16 +282,16 @@ main (void)
 
     if(nerrors) {
         HDprintf("***** %d FAILURE%s! *****\n", nerrors, (1 == nerrors) ? "" : "S");
-        exit(EXIT_FAILURE);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     HDprintf("All extend tests passed.\n");
     h5_cleanup(FILENAME, fapl);
 
-    return 0;
+    HDexit(EXIT_SUCCESS);
 
 error:
     HDprintf("*** One or more extend tests failed ***\n");
-    return 1;
-}
+    HDexit(EXIT_FAILURE);
+} /* end main() */
 
diff --git a/test/filenotclosed.c b/test/filenotclosed.c
index 2c5c8dc..2d050eb 100644
--- a/test/filenotclosed.c
+++ b/test/filenotclosed.c
@@ -35,7 +35,7 @@
  */
 static void catch_signal(int H5_ATTR_UNUSED signo)
 {
-    HDexit(1);
+    HDexit(EXIT_FAILURE);
 } /* catch_signal() */
 
 
diff --git a/test/filter_fail.c b/test/filter_fail.c
index 2acce01..4be2547 100644
--- a/test/filter_fail.c
+++ b/test/filter_fail.c
@@ -347,17 +347,15 @@ error:
  * Purpose:     Tests the library's behavior when a mandate filter returns 
  *              failure.
  *
- * Return:      Success:        exit(EXIT_SUCCESS)
- *              Failure:        exit(EXIT_FAILURE)
+ * Return:      EXIT_SUCCESS/EXIT_FAILURE
  * 
  * Programmer:  Raymond Lu
  *              25 August 2010
  *
- * Modifications:
- *
  *-------------------------------------------------------------------------
  */
-int main(void)
+int
+main(void)
 {
     hid_t       fapl;
     int         mdc_nelmts  = 0;
@@ -398,7 +396,7 @@ int main(void)
 
     if (nerrors) TEST_ERROR
 
-    return 0;
+    HDexit(EXIT_SUCCESS);
 
 error:
     if (nerrors) {
@@ -406,4 +404,4 @@ error:
                nerrors, 1==nerrors?"":"S");
         HDexit(EXIT_FAILURE);
     }
-}
+} /* end main() */
diff --git a/test/gen_cross.c b/test/gen_cross.c
index f7a1938..105895d 100644
--- a/test/gen_cross.c
+++ b/test/gen_cross.c
@@ -1255,13 +1255,11 @@ error:
 /*-------------------------------------------------------------------------
  * Function:    main
  *
- * Purpose:     Create a file for cross_read.c test.
+ * Purpose:     Create a file for cross_read.c test
  *
- * Return:      Success:        exit(EXIT_SUCCESS)
- *              Failure:        exit(EXIT_FAILURE)
+ * Return:      EXIT_SUCCESS/EXIT_FAILURE
  *
  * Programmer:  Raymond Lu
- *              Some time ago
  *
  *-------------------------------------------------------------------------
  */
@@ -1279,9 +1277,8 @@ main (void)
      * default file creation properties, and default file
      * access properties.
      */
-    if((file = H5Fcreate(H5FILE_NAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT))
-            < 0)
-        {H5_FAILED(); AT(); return 1;}
+    if((file = H5Fcreate(H5FILE_NAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+        TEST_ERROR;
 
     /*
      * Describe the size of the array and create the data space for fixed
@@ -1291,82 +1288,84 @@ main (void)
     dimsf[0] = NX + 1;
     dimsf[1] = NY;
     if((filespace = H5Screate_simple(RANK, dimsf, NULL)) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
     dimsf[0] = NX;
-    if(H5Sselect_hyperslab(filespace, H5S_SELECT_SET, start, NULL, dimsf, NULL)
-            < 0)
-        {H5_FAILED(); AT(); return 1;}
+    if(H5Sselect_hyperslab(filespace, H5S_SELECT_SET, start, NULL, dimsf, NULL) < 0)
+        TEST_ERROR;
 
     /* Create memory space.  This does not include the extra row for fill
      * values. */
     HDassert(dimsf[0] == NX);
     HDassert(dimsf[1] == NY);
     if((memspace = H5Screate_simple(RANK, dimsf, NULL)) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
 
     /* Create a regular dataset */
     if(create_normal_dset(file, filespace, memspace) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
 
     /* Create a dataset of FLOAT with scale-offset filter */
     if(create_scale_offset_dsets_float(file, filespace, memspace) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
 
     /* Create a dataset of DOUBLE with scale-offset filter */
     if(create_scale_offset_dsets_double(file, filespace, memspace) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
 
     /* Create a dataset of CHAR with scale-offset filter */
     if(create_scale_offset_dsets_char(file, filespace, memspace) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
 
     /* Create a dataset of SHORT with scale-offset filter */
     if(create_scale_offset_dsets_short(file, filespace, memspace) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
 
     /* Create a dataset of INT with scale-offset filter */
     if(create_scale_offset_dsets_int(file, filespace, memspace) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
 
     /* Create a dataset of LONG LONG with scale-offset filter */
     if(create_scale_offset_dsets_long_long(file, filespace, memspace) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
 
     /* Create a dataset of FLOAT with fletcher filter */
     if(create_fletcher_dsets_float(file, filespace, memspace) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
 
     /* Create a dataset of FLOAT with deflate filter */
     if(create_deflate_dsets_float(file, filespace, memspace) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
 
 #ifdef H5_HAVE_FILTER_SZIP
     /* Create a dataset of FLOAT with szip filter */
     if(create_szip_dsets_float(file, filespace, memspace) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
 #else /* H5_HAVE_FILTER_SZIP */
-    puts("Szip filter is not enabled. Can't create the dataset.");
+    HDputs("Szip filter is not enabled. Can't create the dataset.");
 #endif /* H5_HAVE_FILTER_SZIP */
 
     /* Create a dataset of FLOAT with shuffle filter */
     if(create_shuffle_dsets_float(file, filespace, memspace) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
 
     /* Create a dataset of FLOAT with nbit filter */
     if(create_nbit_dsets_float(file, filespace, memspace) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
 
 
     /*
      * Close/release resources.
      */
     if(H5Sclose(memspace) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
     if(H5Sclose(filespace) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
     if(H5Fclose(file) < 0)
-        {H5_FAILED(); AT(); return 1;}
+        TEST_ERROR;
 
-    return 0;
-}
+    HDexit(EXIT_SUCCESS);
+
+error:
+    HDexit(EXIT_FAILURE);
+} /* end main() */
 
diff --git a/test/hyperslab.c b/test/hyperslab.c
index 3592ca0..8ed9c22 100644
--- a/test/hyperslab.c
+++ b/test/hyperslab.c
@@ -1176,13 +1176,11 @@ error:
 /*-------------------------------------------------------------------------
  * Function:    main
  *
- * Purpose:    Test various hyperslab operations.  Give the words
- *        `small' and/or `medium' on the command line or only `small'
- *        is assumed.
+ * Purpose:     Test various hyperslab operations.  Give the words
+ *              'small' and/or 'medium' on the command line or only 'small'
+ *              is assumed.
  *
- * Return:    Success:    exit(EXIT_SUCCESS)
- *
- *        Failure:    exit(EXIT_FAILURE)
+ * Return:      EXIT_SUCCESS/EXIT_FAILURE
  *
  * Programmer:    Robb Matzke
  *        Friday, October 10, 1997
@@ -1438,6 +1436,6 @@ main(int argc, char *argv[])
     H5close();
 #endif  /* H5_HAVE_THREADSAFE */
 
-    return 0;
+    HDexit(EXIT_SUCCESS);
 }
 
diff --git a/test/istore.c b/test/istore.c
index 8759be3..c8fe866 100644
--- a/test/istore.c
+++ b/test/istore.c
@@ -579,17 +579,13 @@ error:
 /*-------------------------------------------------------------------------
  * Function:    main
  *
- * Purpose:    Tests indexed storage stuff.
+ * Purpose:     Tests indexed storage
  *
- * Return:    Success:    exit(EXIT_SUCCESS)
- *
- *        Failure:    exit(EXIT_FAILURE)
+ * Return:      EXIT_SUCCESS/EXIT_FAILURE
  *
  * Programmer:    Robb Matzke
  *        Wednesday, October 15, 1997
  *
- * Modifications:
- *
  *-------------------------------------------------------------------------
  */
 int
@@ -618,9 +614,6 @@ main(int argc, char *argv[])
                 size_of_test |= TEST_LARGE;
             } else {
                 HDprintf("unrecognized argument: %s\n", argv[i]);
-#if 0
-                exit(EXIT_FAILURE);
-#endif
             }
         }
     }
@@ -654,7 +647,7 @@ main(int argc, char *argv[])
     h5_fixname(FILENAME[0], fapl, filename, sizeof filename);
     if ((file=H5Fcreate(filename, H5F_ACC_TRUNC, fcpl, fapl)) < 0) {
         HDprintf("Cannot create file %s; test aborted\n", filename);
-        exit(EXIT_FAILURE);
+        HDexit(EXIT_FAILURE);
     }
 
     /* Initialize chunk dimensions */
@@ -722,13 +715,13 @@ main(int argc, char *argv[])
     if (nerrors) {
         HDprintf("***** %d I-STORE TEST%s FAILED! *****\n",
                 nerrors, 1 == nerrors ? "" : "S");
-        exit(EXIT_FAILURE);
+        HDexit(EXIT_FAILURE);
     }
 
     HDprintf("All i-store tests passed.\n");
 
     h5_cleanup(FILENAME, fapl);
 
-    return 0;
+    HDexit(EXIT_SUCCESS);
 }
 
diff --git a/test/links.c b/test/links.c
index cd44433..4eb4126 100644
--- a/test/links.c
+++ b/test/links.c
@@ -13907,8 +13907,7 @@ error:
  *
  * Purpose:     Test links
  *
- * Return:      Success:    exit(EXIT_SUCCESS)
- *              Failure:    exit(EXIT_FAILURE)
+ * Return:      EXIT_SUCCESS/EXIT_FAILURE
  *-------------------------------------------------------------------------
  */
 int
@@ -14137,10 +14136,10 @@ main(void)
     HDrmdir(TMPDIR);
     HDrmdir(TMPDIR2);
 
-    return SUCCEED;
+    HDexit(EXIT_SUCCESS);
 
 error:
     HDputs("*** TESTS FAILED ***");
-    return 1;
+    HDexit(EXIT_FAILURE);
 }
 
diff --git a/test/links_env.c b/test/links_env.c
index dff185c..efb8cfd 100644
--- a/test/links_env.c
+++ b/test/links_env.c
@@ -134,10 +134,9 @@ external_link_env(hid_t fapl, hbool_t new_format)
 /*-------------------------------------------------------------------------
  * Function:    main
  *
- * Purpose:    Test external link with environment variable HDF5_EXT_PREFIX
+ * Purpose:     Test external link with environment variable HDF5_EXT_PREFIX
  *
- * Return:    Success:    exit(EXIT_SUCCESS)
- *        Failure:    exit(EXIT_FAILURE)
+ * Return:      EXIT_SUCCESS/EXIT_FAILURE
  *
  * Programmer:    Vailin Choi; Nov 2010
  *
@@ -175,9 +174,10 @@ main(void)
     /* clean up tmp_links_env directory created by external link tests */
     HDrmdir(TMPDIR);
 
-    return 0;
+    HDexit(EXIT_SUCCESS);
 
 error:
     HDputs("*** TESTS FAILED ***");
-    return 1;
-}
+    HDexit(EXIT_FAILURE);
+} /* end main() */
+
diff --git a/test/objcopy.c b/test/objcopy.c
index 5a5afc0..05ddfa4 100644
--- a/test/objcopy.c
+++ b/test/objcopy.c
@@ -14090,7 +14090,7 @@ error:
 
 
 /*-------------------------------------------------------------------------
- * Function:       main
+ * Function:    main
  *
  * Purpose:     Test H5Ocopy()
  *
@@ -14098,7 +14098,7 @@ error:
  *              new or old format, messages can be shared in either,
  *              both, or neither of the source and destination files.
  *
- * Return:      Non-negative on success/Negative on failure
+ * Return:      EXIT_SUCCESS/EXIT_FAILURE
  *
  * Programmer:  Peter Cao
  *              Friday, September 30, 2005
@@ -14376,7 +14376,7 @@ main(void)
     if(nerrors) {
         HDprintf("***** %d OBJECT COPY TEST%s FAILED! *****\n",
                 nerrors, (1 == nerrors ? "" : "S"));
-        exit(EXIT_FAILURE);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     HDputs ("All object copying tests passed.");
@@ -14406,9 +14406,9 @@ main(void)
 
     h5_cleanup(FILENAME, fapl);
 
-    return 0;
+    HDexit(EXIT_SUCCESS);
 
 error:
-    return 1;
+    HDexit(EXIT_FAILURE);
 } /* main */
 
diff --git a/test/swmr_addrem_writer.c b/test/swmr_addrem_writer.c
index 01e2ce1..df984b1 100644
--- a/test/swmr_addrem_writer.c
+++ b/test/swmr_addrem_writer.c
@@ -302,7 +302,7 @@ usage(void)
     HDprintf("Defaults to verbose (no '-q' given), flushing every 1000 operations\n");
     HDprintf("('-f 1000'), and will generate a random seed (no -r given).\n");
     HDprintf("\n");
-    HDexit(1);
+    HDexit(EXIT_FAILURE);
 }
 
 int main(int argc, const char *argv[])
@@ -401,7 +401,7 @@ int main(int argc, const char *argv[])
     /* Open file skeleton */
     if((fid = open_skeleton(FILENAME, verbose)) < 0) {
         HDfprintf(stderr, "Error opening skeleton file!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Send a message to indicate "H5Fopen" is complete--releasing the file lock */
@@ -414,7 +414,7 @@ int main(int argc, const char *argv[])
     /* Grow and shrink datasets */
     if(addrem_records(fid, verbose, (unsigned long)nops, (unsigned long)flush_count) < 0) {
         HDfprintf(stderr, "Error adding and removing records from datasets!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Emit informational message */
@@ -424,7 +424,7 @@ int main(int argc, const char *argv[])
     /* Clean up the symbols */
     if(shutdown_symbols() < 0) {
         HDfprintf(stderr, "Error releasing symbols!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Emit informational message */
@@ -434,7 +434,7 @@ int main(int argc, const char *argv[])
     /* Close objects opened */
     if(H5Fclose(fid) < 0) {
         HDfprintf(stderr, "Error closing file!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     return 0;
diff --git a/test/swmr_generator.c b/test/swmr_generator.c
index d986696..54a9900 100644
--- a/test/swmr_generator.c
+++ b/test/swmr_generator.c
@@ -283,7 +283,7 @@ usage(void)
     HDprintf("compression ('-c -1'), v1 b-tree indexing (-i b1), and will generate a random\n");
     HDprintf("seed (no -r given).\n");
     HDprintf("\n");
-    HDexit(1);
+    HDexit(EXIT_FAILURE);
 } /* end usage() */
 
 int main(int argc, const char *argv[])
@@ -377,7 +377,7 @@ int main(int argc, const char *argv[])
     /* Generate file skeleton */
     if(gen_skeleton(FILENAME, verbose, swmr_write, comp_level, index_type, random_seed) < 0) {
         HDfprintf(stderr, "Error generating skeleton file!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     return 0;
diff --git a/test/swmr_reader.c b/test/swmr_reader.c
index c994a71..cb354a7 100644
--- a/test/swmr_reader.c
+++ b/test/swmr_reader.c
@@ -384,7 +384,7 @@ usage(void)
     HDprintf("5 common symbols to poll ('-h 5'), 10 random symbols to poll ('-l 10'),\n");
     HDprintf("and will generate a random seed (no -r given).\n");
     HDprintf("\n");
-    HDexit(1);
+    HDexit(EXIT_FAILURE);
 }
 
 int main(int argc, const char *argv[])
@@ -485,7 +485,7 @@ int main(int argc, const char *argv[])
         HDsnprintf(verbose_name, sizeof(verbose_name), "swmr_reader.out.%u", random_seed);
         if(NULL == (verbose_file = HDfopen(verbose_name, "w"))) {
             HDfprintf(stderr, "Can't open verbose output file!\n");
-            HDexit(1);
+            HDexit(EXIT_FAILURE);
         }
     } /* end if */
 
@@ -508,7 +508,7 @@ int main(int argc, const char *argv[])
     /* Generate dataset names */
     if(generate_symbols() < 0) {
         HDfprintf(stderr, "Error generating symbol names!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Create datatype for creating datasets */
@@ -518,7 +518,7 @@ int main(int argc, const char *argv[])
     /* Reading records from datasets */
     if(read_records(FILENAME, verbose, verbose_file, random_seed, (unsigned long)nseconds, (unsigned)poll_time, (unsigned)ncommon, (unsigned)nrandom) < 0) {
         HDfprintf(stderr, "Error reading records from datasets (random_seed = %u)!\n", random_seed);
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Emit informational message */
@@ -528,7 +528,7 @@ int main(int argc, const char *argv[])
     /* Clean up the symbols */
     if(shutdown_symbols() < 0) {
         HDfprintf(stderr, "Error releasing symbols!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Emit informational message */
@@ -538,7 +538,7 @@ int main(int argc, const char *argv[])
     /* Close objects created */
     if(H5Tclose(symbol_tid) < 0) {
         HDfprintf(stderr, "Error closing symbol datatype!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     return 0;
diff --git a/test/swmr_remove_reader.c b/test/swmr_remove_reader.c
index b4f0d5b..9ca6045 100644
--- a/test/swmr_remove_reader.c
+++ b/test/swmr_remove_reader.c
@@ -370,7 +370,7 @@ usage(void)
     HDprintf("5 common symbols to poll ('-h 5'), 10 random symbols to poll ('-l 10'),\n");
     HDprintf("and will generate a random seed (no -r given).\n");
     HDprintf("\n");
-    HDexit(1);
+    HDexit(EXIT_FAILURE);
 } 
 
 int main(int argc, const char *argv[])
@@ -480,7 +480,7 @@ int main(int argc, const char *argv[])
     /* Generate dataset names */
     if(generate_symbols() < 0) {
         HDfprintf(stderr, "Error generating symbol names!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Create datatype for creating datasets */
@@ -490,7 +490,7 @@ int main(int argc, const char *argv[])
     /* Reading records from datasets */
     if(read_records(FILENAME, verbose, (unsigned long)nseconds, (unsigned)poll_time, (unsigned)ncommon, (unsigned)nrandom) < 0) {
         HDfprintf(stderr, "Error reading records from datasets!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Emit informational message */
@@ -500,7 +500,7 @@ int main(int argc, const char *argv[])
     /* Clean up the symbols */
     if(shutdown_symbols() < 0) {
         HDfprintf(stderr, "Error releasing symbols!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Emit informational message */
@@ -510,7 +510,7 @@ int main(int argc, const char *argv[])
     /* Close objects created */
     if(H5Tclose(symbol_tid) < 0) {
         HDfprintf(stderr, "Error closing symbol datatype!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     return 0;
diff --git a/test/swmr_remove_writer.c b/test/swmr_remove_writer.c
index c4f7b6e..e6d23de 100644
--- a/test/swmr_remove_writer.c
+++ b/test/swmr_remove_writer.c
@@ -236,7 +236,7 @@ usage(void)
     HDprintf("Defaults to verbose (no '-q' given), latest format when opening file (no '-o' given),\n");
     HDprintf("flushing every 1000 shrinks ('-f 1000'), and will generate a random seed (no -r given).\n");
     HDprintf("\n");
-    HDexit(1);
+    HDexit(EXIT_FAILURE);
 }
 
 int main(int argc, const char *argv[])
@@ -339,7 +339,7 @@ int main(int argc, const char *argv[])
     /* Open file skeleton */
     if((fid = open_skeleton(FILENAME, verbose, old)) < 0) {
         HDfprintf(stderr, "Error opening skeleton file!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Send a message to indicate "H5Fopen" is complete--releasing the file lock */
@@ -352,7 +352,7 @@ int main(int argc, const char *argv[])
     /* Remove records from datasets */
     if(remove_records(fid, verbose, (unsigned long)nshrinks, (unsigned long)flush_count) < 0) {
         HDfprintf(stderr, "Error removing records from datasets!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Emit informational message */
@@ -362,7 +362,7 @@ int main(int argc, const char *argv[])
     /* Clean up the symbols */
     if(shutdown_symbols() < 0) {
         HDfprintf(stderr, "Error releasing symbols!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Emit informational message */
@@ -372,7 +372,7 @@ int main(int argc, const char *argv[])
     /* Close objects opened */
     if(H5Fclose(fid) < 0) {
         HDfprintf(stderr, "Error closing file!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     return 0;
diff --git a/test/swmr_sparse_reader.c b/test/swmr_sparse_reader.c
index cd0ece6..6adc6c5 100644
--- a/test/swmr_sparse_reader.c
+++ b/test/swmr_sparse_reader.c
@@ -338,7 +338,7 @@ usage(void)
     HDprintf("Note that the # of records *must* be the same as that supplied to\n");
     HDprintf("swmr_sparse_writer\n");
     HDprintf("\n");
-    HDexit(1);
+    HDexit(EXIT_FAILURE);
 } /* end usage() */
 
 int main(int argc, const char *argv[])
@@ -410,7 +410,7 @@ int main(int argc, const char *argv[])
     /* Generate dataset names */
     if(generate_symbols() < 0) {
         HDfprintf(stderr, "Error generating symbol names!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Create datatype for creating datasets */
@@ -420,7 +420,7 @@ int main(int argc, const char *argv[])
     /* Reading records from datasets */
     if(read_records(FILENAME, verbose, (unsigned long) nrecords, (unsigned)poll_time, (unsigned)reopen_count) < 0) {
         HDfprintf(stderr, "Error reading records from datasets!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Emit informational message */
@@ -430,7 +430,7 @@ int main(int argc, const char *argv[])
     /* Clean up the symbols */
     if(shutdown_symbols() < 0) {
         HDfprintf(stderr, "Error releasing symbols!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Emit informational message */
@@ -440,7 +440,7 @@ int main(int argc, const char *argv[])
     /* Close objects created */
     if(H5Tclose(symbol_tid) < 0) {
         HDfprintf(stderr, "Error closing symbol datatype!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     return 0;
diff --git a/test/swmr_sparse_writer.c b/test/swmr_sparse_writer.c
index 17d8c61..5173c71 100644
--- a/test/swmr_sparse_writer.c
+++ b/test/swmr_sparse_writer.c
@@ -337,7 +337,7 @@ usage(void)
     HDprintf("Defaults to verbose (no '-q' given) and flushing every 1000 records\n");
     HDprintf("('-f 1000')\n");
     HDprintf("\n");
-    HDexit(1);
+    HDexit(EXIT_FAILURE);
 }
 
 int main(int argc, const char *argv[])
@@ -412,7 +412,7 @@ int main(int argc, const char *argv[])
     /* Open file skeleton */
     if((fid = open_skeleton(FILENAME, verbose)) < 0) {
         HDfprintf(stderr, "Error opening skeleton file!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Send a message to indicate "H5Fopen" is complete--releasing the file lock */
@@ -425,7 +425,7 @@ int main(int argc, const char *argv[])
     /* Append records to datasets */
     if(add_records(fid, verbose, (unsigned long)nrecords, (unsigned long)flush_count) < 0) {
         HDfprintf(stderr, "Error appending records to datasets!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Emit informational message */
@@ -435,7 +435,7 @@ int main(int argc, const char *argv[])
     /* Clean up the symbols */
     if(shutdown_symbols() < 0) {
         HDfprintf(stderr, "Error releasing symbols!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Emit informational message */
@@ -445,7 +445,7 @@ int main(int argc, const char *argv[])
     /* Close objects opened */
     if(H5Fclose(fid) < 0) {
         HDfprintf(stderr, "Error closing file!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     return 0;
diff --git a/test/swmr_start_write.c b/test/swmr_start_write.c
index 0ee382d..c4222ad 100644
--- a/test/swmr_start_write.c
+++ b/test/swmr_start_write.c
@@ -357,7 +357,7 @@ usage(void)
     HDprintf("v1 b-tree indexing (-i b1), compression ('-c -1'),\n");
     HDprintf("will generate a random seed (no -r given), and verbose (no '-q' given)\n");
     HDprintf("\n");
-    HDexit(1);
+    HDexit(EXIT_FAILURE);
 } /* usage() */
 
 /*
@@ -468,7 +468,7 @@ int main(int argc, const char *argv[])
         HDsnprintf(verbose_name, sizeof(verbose_name), "swmr_writer.out.%u", random_seed);
         if(NULL == (verbose_file = HDfopen(verbose_name, "w"))) {
             HDfprintf(stderr, "Can't open verbose output file!\n");
-            HDexit(1);
+            HDexit(EXIT_FAILURE);
         }
     } /* end if */
 
@@ -487,7 +487,7 @@ int main(int argc, const char *argv[])
     /* Create the test file */
     if((fid = create_file(FILENAME, verbose, verbose_file, random_seed)) < 0) {
         HDfprintf(stderr, "Error creating the file...\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     }
 
     /* Emit informational message */
@@ -501,13 +501,13 @@ int main(int argc, const char *argv[])
     /* Create the datasets in the file */
     if(create_datasets(fid, comp_level, verbose, verbose_file, index_type) < 0) {
         HDfprintf(stderr, "Error creating datasets...\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     }
 
     /* Enable SWMR writing mode */
     if(H5Fstart_swmr_write(fid) < 0) {
         HDfprintf(stderr, "Error starting SWMR writing mode...\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     }
 
     /* Send a message to indicate "H5Fopen" is complete--releasing the file lock */
@@ -520,7 +520,7 @@ int main(int argc, const char *argv[])
     /* Append records to datasets */
     if(add_records(fid, verbose, verbose_file, (unsigned long)nrecords, (unsigned long)flush_count) < 0) {
         HDfprintf(stderr, "Error appending records to datasets!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Emit informational message */
@@ -530,7 +530,7 @@ int main(int argc, const char *argv[])
     /* Clean up the symbols */
     if(shutdown_symbols() < 0) {
         HDfprintf(stderr, "Error releasing symbols!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Emit informational message */
@@ -540,7 +540,7 @@ int main(int argc, const char *argv[])
     /* Close objects opened */
     if(H5Fclose(fid) < 0) {
         HDfprintf(stderr, "Error closing file!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     return 0;
diff --git a/test/swmr_writer.c b/test/swmr_writer.c
index 6df7355..4c3e64a 100644
--- a/test/swmr_writer.c
+++ b/test/swmr_writer.c
@@ -291,7 +291,7 @@ usage(void)
     HDprintf("Defaults to verbose (no '-q' given), latest format when opening file (no '-o' given),\n");
     HDprintf("flushing every 10000 records ('-f 10000'), and will generate a random seed (no -r given).\n");
     HDprintf("\n");
-    HDexit(1);
+    HDexit(EXIT_FAILURE);
 }
 
 int main(int argc, const char *argv[])
@@ -379,7 +379,7 @@ int main(int argc, const char *argv[])
         HDsnprintf(verbose_name, sizeof(verbose_name), "swmr_writer.out.%u", random_seed);
         if(NULL == (verbose_file = HDfopen(verbose_name, "w"))) {
             HDfprintf(stderr, "Can't open verbose output file!\n");
-            HDexit(1);
+            HDexit(EXIT_FAILURE);
         }
     } /* end if */
 
@@ -408,7 +408,7 @@ int main(int argc, const char *argv[])
     /* Open file skeleton */
     if((fid = open_skeleton(FILENAME, verbose, verbose_file, random_seed, old)) < 0) {
         HDfprintf(stderr, "Error opening skeleton file!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Send a message to indicate "H5Fopen" is complete--releasing the file lock */
@@ -421,7 +421,7 @@ int main(int argc, const char *argv[])
     /* Append records to datasets */
     if(add_records(fid, verbose, verbose_file, (unsigned long)nrecords, (unsigned long)flush_count) < 0) {
         HDfprintf(stderr, "Error appending records to datasets!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Emit informational message */
@@ -431,7 +431,7 @@ int main(int argc, const char *argv[])
     /* Clean up the symbols */
     if(shutdown_symbols() < 0) {
         HDfprintf(stderr, "Error releasing symbols!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     /* Emit informational message */
@@ -441,7 +441,7 @@ int main(int argc, const char *argv[])
     /* Close objects opened */
     if(H5Fclose(fid) < 0) {
         HDfprintf(stderr, "Error closing file!\n");
-        HDexit(1);
+        HDexit(EXIT_FAILURE);
     } /* end if */
 
     return 0;
diff --git a/test/testframe.c b/test/testframe.c
index 68c66ec..3c2a335 100644
--- a/test/testframe.c
+++ b/test/testframe.c
@@ -90,7 +90,7 @@ AddTest(const char *TheName, void (*TheCall) (void), void (*Cleanup) (void), con
         /* Reallocate array */
         if(NULL == (newTest = (TestStruct *)HDrealloc(Test, newAlloc * sizeof(TestStruct)))) {
             HDprintf("Out of memory for tests, Index = %u, TestAlloc = %u, newAlloc = %u\n", Index, TestAlloc, newAlloc);
-            exit(EXIT_FAILURE);
+            HDexit(EXIT_FAILURE);
         } /* end if */
 
         /* Update info */
diff --git a/test/twriteorder.c b/test/twriteorder.c
index 60ee384..b104b72 100644
--- a/test/twriteorder.c
+++ b/test/twriteorder.c
@@ -134,7 +134,7 @@ parse_option(int argc, char * const argv[])
         switch (c) {
             case 'h':
                 usage(progname_g);
-                HDexit(0);
+                HDexit(EXIT_SUCCESS);
                 break;
             case 'b':   /* number of planes to write/read */
                 if ((blocksize_g = atoi(optarg)) <= 0) {
@@ -407,12 +407,12 @@ main(int argc, char *argv[])
             HDprintf("%d: launch reader process\n", mypid);
             if (read_wo_file() < 0) {
                 HDfprintf(stderr, "read_wo_file encountered error\n");
-                HDexit(1);
+                HDexit(EXIT_FAILURE);
             }
 
             /* Reader is done. Clean up by removing the data file */
             HDremove(DATAFILE);
-            HDexit(0);
+            HDexit(EXIT_SUCCESS);
         }
     }
 
diff --git a/test/unlink.c b/test/unlink.c
index f79aa29..6825dec 100644
--- a/test/unlink.c
+++ b/test/unlink.c
@@ -2421,17 +2421,13 @@ error:
 /*-------------------------------------------------------------------------
  * Function:    main
  *
- * Purpose:    Test unlinking operations
+ * Purpose:     Test unlinking operations
  *
- * Return:    Success:    zero
- *
- *        Failure:    non-zero
+ * Return:      EXIT_SUCCESS/EXIT_FAILURE
  *
  * Programmer:    Robb Matzke
  *              Friday, September 25, 1998
  *
- * Modifications:
- *
  *-------------------------------------------------------------------------
  */
 int
@@ -2551,16 +2547,16 @@ main(void)
 
     if (nerrors) {
         HDprintf("***** %d FAILURE%s! *****\n", nerrors, 1==nerrors?"":"S");
-        exit(EXIT_FAILURE);
+        HDexit(EXIT_FAILURE);
     }
 
     HDputs("All unlink tests passed.");
 
     h5_cleanup(FILENAME, fapl);
 
-    return 0;
+    HDexit(EXIT_SUCCESS);
 
 error:
-    return 1;
-}
+    HDexit(EXIT_FAILURE);
+} /* end main() */
 
diff --git a/test/use_append_chunk.c b/test/use_append_chunk.c
index 4e8c672..6b34f1e 100644
--- a/test/use_append_chunk.c
+++ b/test/use_append_chunk.c
@@ -174,9 +174,9 @@ main(int argc, char *argv[])
             HDprintf("%d: launch reader process\n", mypid);
             if (read_uc_file(send_wait) < 0){
                 HDfprintf(stderr, "read_uc_file encountered error\n");
-                HDexit(1);
+                HDexit(EXIT_FAILURE);
             }
-            HDexit(0);
+            HDexit(EXIT_SUCCESS);
         }
     }
 
diff --git a/test/use_append_mchunks.c b/test/use_append_mchunks.c
index 0414628..b7d45a4 100644
--- a/test/use_append_mchunks.c
+++ b/test/use_append_mchunks.c
@@ -167,9 +167,9 @@ main(int argc, char *argv[])
             HDprintf("%d: launch reader process\n", mypid);
             if (read_uc_file(send_wait) < 0){
                 HDfprintf(stderr, "read_uc_file encountered error\n");
-                HDexit(1);
+                HDexit(EXIT_FAILURE);
             }
-            HDexit(0);
+            HDexit(EXIT_SUCCESS);
         }
     }
 
diff --git a/test/use_common.c b/test/use_common.c
index b600dca..9effa06 100644
--- a/test/use_common.c
+++ b/test/use_common.c
@@ -63,7 +63,7 @@ parse_option(int argc, char * const argv[])
     switch (c) {
     case 'h':
         usage(progname_g);
-        exit(0);
+        HDexit(EXIT_SUCCESS);
         break;
     case 'f':    /* usecase data file name */
         UC_opts.filename = optarg;
diff --git a/test/use_disable_mdc_flushes.c b/test/use_disable_mdc_flushes.c
index b349269..9cd202c 100644
--- a/test/use_disable_mdc_flushes.c
+++ b/test/use_disable_mdc_flushes.c
@@ -102,7 +102,7 @@ parse_option(int argc, char * const argv[])
     switch (c) {
     case 'h':
         usage(progname_g);
-        exit(0);
+        HDexit(EXIT_SUCCESS);
         break;
     case 'f':    /* usecase data file name */
         filename_g = optarg;
@@ -540,7 +540,7 @@ int
 main(void)
 {
     HDfprintf(stderr, "Non-POSIX platform. Skipping.\n");
-    return EXIT_SUCCESS;
+    HDexit(EXIT_SUCCESS);
 } /* end main() */
 
 #endif /* H5_HAVE_FORK */