updated

Thu Jun 29 15:57:28 2000  Owen Taylor  <otaylor@redhat.com>

        * NEWS: updated

	* Makefile.am: added snapcheck target to go along with snapshot

	* gstring.c glib.h (g_string_hash): Add g_string_hash to
	go along with g_string_equal.

Tue Jun 27 12:40:23 EDT 2000  David A. Wheeler <dwheeler@dwheeler.com>

	* glib.h: Added g_string_equal for comparing GStrings;
	changed g_str_equal so it returns gboolean (instead of gint).

	* gstring.c: Modified GString implementation to support embedded
	ASCII NUL ('\0') characters, and implemented g_string_equal.

	* testglib.c tests/string-test.c: Added tests for g_string_equal
	and tests for proper handling of embedded ASCII NUL characters.

ChangeLog

@@ -1,3 +1,23 @@
+Thu Jun 29 15:57:28 2000  Owen Taylor  <otaylor@redhat.com>
+
+        * NEWS: updated
+
+	* Makefile.am: added snapcheck target to go along with snapshot
+	
+	* gstring.c glib.h (g_string_hash): Add g_string_hash to 
+	go along with g_string_equal.
+
+Tue Jun 27 12:40:23 EDT 2000  David A. Wheeler <dwheeler@dwheeler.com>
+
+	* glib.h: Added g_string_equal for comparing GStrings;
+	changed g_str_equal so it returns gboolean (instead of gint).
+
+	* gstring.c: Modified GString implementation to support embedded
+	ASCII NUL ('\0') characters, and implemented g_string_equal.
+
+	* testglib.c tests/string-test.c: Added tests for g_string_equal
+	and tests for proper handling of embedded ASCII NUL characters.
+
 Wed Jun 28 22:52:00 2000  Owen Taylor  <otaylor@redhat.com>
 
 	* Makefile.am (libglib_la_SOURCES): Fix
@@ -52,7 +72,6 @@ Mon May 29 14:10:35 2000  Owen Taylor  <otaylor@redhat.com>
 
 Fri May 19 11:39:29 2000  Tim Janik  <timj@gtk.org>
 
-
         * gutils.c (g_snprintf):
         (g_vsnprintf): added argument assertments.
 

ChangeLog.pre-2-0

@@ -1,3 +1,23 @@
+Thu Jun 29 15:57:28 2000  Owen Taylor  <otaylor@redhat.com>
+
+        * NEWS: updated
+
+	* Makefile.am: added snapcheck target to go along with snapshot
+	
+	* gstring.c glib.h (g_string_hash): Add g_string_hash to 
+	go along with g_string_equal.
+
+Tue Jun 27 12:40:23 EDT 2000  David A. Wheeler <dwheeler@dwheeler.com>
+
+	* glib.h: Added g_string_equal for comparing GStrings;
+	changed g_str_equal so it returns gboolean (instead of gint).
+
+	* gstring.c: Modified GString implementation to support embedded
+	ASCII NUL ('\0') characters, and implemented g_string_equal.
+
+	* testglib.c tests/string-test.c: Added tests for g_string_equal
+	and tests for proper handling of embedded ASCII NUL characters.
+
 Wed Jun 28 22:52:00 2000  Owen Taylor  <otaylor@redhat.com>
 
 	* Makefile.am (libglib_la_SOURCES): Fix
@@ -52,7 +72,6 @@ Mon May 29 14:10:35 2000  Owen Taylor  <otaylor@redhat.com>
 
 Fri May 19 11:39:29 2000  Tim Janik  <timj@gtk.org>
 
-
         * gutils.c (g_snprintf):
         (g_vsnprintf): added argument assertments.
 

ChangeLog.pre-2-10

@@ -1,3 +1,23 @@
+Thu Jun 29 15:57:28 2000  Owen Taylor  <otaylor@redhat.com>
+
+        * NEWS: updated
+
+	* Makefile.am: added snapcheck target to go along with snapshot
+	
+	* gstring.c glib.h (g_string_hash): Add g_string_hash to 
+	go along with g_string_equal.
+
+Tue Jun 27 12:40:23 EDT 2000  David A. Wheeler <dwheeler@dwheeler.com>
+
+	* glib.h: Added g_string_equal for comparing GStrings;
+	changed g_str_equal so it returns gboolean (instead of gint).
+
+	* gstring.c: Modified GString implementation to support embedded
+	ASCII NUL ('\0') characters, and implemented g_string_equal.
+
+	* testglib.c tests/string-test.c: Added tests for g_string_equal
+	and tests for proper handling of embedded ASCII NUL characters.
+
 Wed Jun 28 22:52:00 2000  Owen Taylor  <otaylor@redhat.com>
 
 	* Makefile.am (libglib_la_SOURCES): Fix
@@ -52,7 +72,6 @@ Mon May 29 14:10:35 2000  Owen Taylor  <otaylor@redhat.com>
 
 Fri May 19 11:39:29 2000  Tim Janik  <timj@gtk.org>
 
-
         * gutils.c (g_snprintf):
         (g_vsnprintf): added argument assertments.
 

ChangeLog.pre-2-12

@@ -1,3 +1,23 @@
+Thu Jun 29 15:57:28 2000  Owen Taylor  <otaylor@redhat.com>
+
+        * NEWS: updated
+
+	* Makefile.am: added snapcheck target to go along with snapshot
+	
+	* gstring.c glib.h (g_string_hash): Add g_string_hash to 
+	go along with g_string_equal.
+
+Tue Jun 27 12:40:23 EDT 2000  David A. Wheeler <dwheeler@dwheeler.com>
+
+	* glib.h: Added g_string_equal for comparing GStrings;
+	changed g_str_equal so it returns gboolean (instead of gint).
+
+	* gstring.c: Modified GString implementation to support embedded
+	ASCII NUL ('\0') characters, and implemented g_string_equal.
+
+	* testglib.c tests/string-test.c: Added tests for g_string_equal
+	and tests for proper handling of embedded ASCII NUL characters.
+
 Wed Jun 28 22:52:00 2000  Owen Taylor  <otaylor@redhat.com>
 
 	* Makefile.am (libglib_la_SOURCES): Fix
@@ -52,7 +72,6 @@ Mon May 29 14:10:35 2000  Owen Taylor  <otaylor@redhat.com>
 
 Fri May 19 11:39:29 2000  Tim Janik  <timj@gtk.org>
 
-
         * gutils.c (g_snprintf):
         (g_vsnprintf): added argument assertments.
 

ChangeLog.pre-2-2

@@ -1,3 +1,23 @@
+Thu Jun 29 15:57:28 2000  Owen Taylor  <otaylor@redhat.com>
+
+        * NEWS: updated
+
+	* Makefile.am: added snapcheck target to go along with snapshot
+	
+	* gstring.c glib.h (g_string_hash): Add g_string_hash to 
+	go along with g_string_equal.
+
+Tue Jun 27 12:40:23 EDT 2000  David A. Wheeler <dwheeler@dwheeler.com>
+
+	* glib.h: Added g_string_equal for comparing GStrings;
+	changed g_str_equal so it returns gboolean (instead of gint).
+
+	* gstring.c: Modified GString implementation to support embedded
+	ASCII NUL ('\0') characters, and implemented g_string_equal.
+
+	* testglib.c tests/string-test.c: Added tests for g_string_equal
+	and tests for proper handling of embedded ASCII NUL characters.
+
 Wed Jun 28 22:52:00 2000  Owen Taylor  <otaylor@redhat.com>
 
 	* Makefile.am (libglib_la_SOURCES): Fix
@@ -52,7 +72,6 @@ Mon May 29 14:10:35 2000  Owen Taylor  <otaylor@redhat.com>
 
 Fri May 19 11:39:29 2000  Tim Janik  <timj@gtk.org>
 
-
         * gutils.c (g_snprintf):
         (g_vsnprintf): added argument assertments.
 

ChangeLog.pre-2-4

@@ -1,3 +1,23 @@
+Thu Jun 29 15:57:28 2000  Owen Taylor  <otaylor@redhat.com>
+
+        * NEWS: updated
+
+	* Makefile.am: added snapcheck target to go along with snapshot
+	
+	* gstring.c glib.h (g_string_hash): Add g_string_hash to 
+	go along with g_string_equal.
+
+Tue Jun 27 12:40:23 EDT 2000  David A. Wheeler <dwheeler@dwheeler.com>
+
+	* glib.h: Added g_string_equal for comparing GStrings;
+	changed g_str_equal so it returns gboolean (instead of gint).
+
+	* gstring.c: Modified GString implementation to support embedded
+	ASCII NUL ('\0') characters, and implemented g_string_equal.
+
+	* testglib.c tests/string-test.c: Added tests for g_string_equal
+	and tests for proper handling of embedded ASCII NUL characters.
+
 Wed Jun 28 22:52:00 2000  Owen Taylor  <otaylor@redhat.com>
 
 	* Makefile.am (libglib_la_SOURCES): Fix
@@ -52,7 +72,6 @@ Mon May 29 14:10:35 2000  Owen Taylor  <otaylor@redhat.com>
 
 Fri May 19 11:39:29 2000  Tim Janik  <timj@gtk.org>
 
-
         * gutils.c (g_snprintf):
         (g_vsnprintf): added argument assertments.
 

ChangeLog.pre-2-6

@@ -1,3 +1,23 @@
+Thu Jun 29 15:57:28 2000  Owen Taylor  <otaylor@redhat.com>
+
+        * NEWS: updated
+
+	* Makefile.am: added snapcheck target to go along with snapshot
+	
+	* gstring.c glib.h (g_string_hash): Add g_string_hash to 
+	go along with g_string_equal.
+
+Tue Jun 27 12:40:23 EDT 2000  David A. Wheeler <dwheeler@dwheeler.com>
+
+	* glib.h: Added g_string_equal for comparing GStrings;
+	changed g_str_equal so it returns gboolean (instead of gint).
+
+	* gstring.c: Modified GString implementation to support embedded
+	ASCII NUL ('\0') characters, and implemented g_string_equal.
+
+	* testglib.c tests/string-test.c: Added tests for g_string_equal
+	and tests for proper handling of embedded ASCII NUL characters.
+
 Wed Jun 28 22:52:00 2000  Owen Taylor  <otaylor@redhat.com>
 
 	* Makefile.am (libglib_la_SOURCES): Fix
@@ -52,7 +72,6 @@ Mon May 29 14:10:35 2000  Owen Taylor  <otaylor@redhat.com>
 
 Fri May 19 11:39:29 2000  Tim Janik  <timj@gtk.org>
 
-
         * gutils.c (g_snprintf):
         (g_vsnprintf): added argument assertments.
 

ChangeLog.pre-2-8

@@ -1,3 +1,23 @@
+Thu Jun 29 15:57:28 2000  Owen Taylor  <otaylor@redhat.com>
+
+        * NEWS: updated
+
+	* Makefile.am: added snapcheck target to go along with snapshot
+	
+	* gstring.c glib.h (g_string_hash): Add g_string_hash to 
+	go along with g_string_equal.
+
+Tue Jun 27 12:40:23 EDT 2000  David A. Wheeler <dwheeler@dwheeler.com>
+
+	* glib.h: Added g_string_equal for comparing GStrings;
+	changed g_str_equal so it returns gboolean (instead of gint).
+
+	* gstring.c: Modified GString implementation to support embedded
+	ASCII NUL ('\0') characters, and implemented g_string_equal.
+
+	* testglib.c tests/string-test.c: Added tests for g_string_equal
+	and tests for proper handling of embedded ASCII NUL characters.
+
 Wed Jun 28 22:52:00 2000  Owen Taylor  <otaylor@redhat.com>
 
 	* Makefile.am (libglib_la_SOURCES): Fix
@@ -52,7 +72,6 @@ Mon May 29 14:10:35 2000  Owen Taylor  <otaylor@redhat.com>
 
 Fri May 19 11:39:29 2000  Tim Janik  <timj@gtk.org>
 
-
         * gutils.c (g_snprintf):
         (g_vsnprintf): added argument assertments.
 

Makefile.am

@@ -134,7 +134,10 @@ sanity:
 	./sanity_check $(VERSION)
 
 snapshot:
-	$(MAKE) dist distdir=$(PACKAGE)`date +"%y%m%d"`
+	$(MAKE) dist distdir=$(PACKAGE)-snap`date +"%Y%m%d"`
+
+snapcheck:
+	$(MAKE) distcheck distdir=$(PACKAGE)-snap`date +"%Y%m%d"`
 
 dist-hook:
 	cp glib.spec $(distdir)

NEWS

@@ -1,5 +1,11 @@
 What's new in GLib 1.3.1:
-
+* New GObject library added including object system based on
+  the GTK+ object system. 
+* Functions for getting the properties of Unicode characters, 
+  computing the canonical decomposition and ordering combining
+  characters aand manipulating UTF-8 string manipulation based
+  on libunicode.
+* GString now properly handles embedded nuls.
 * Multiple fixes from the 1.2.x branch.
 * Upgrade to libtool 1.3.3
 * Full thread support (thread creation and destruction).

glib.h

@@ -1865,6 +1865,9 @@ GString*     g_string_new	        (const gchar	 *init);
 GString*     g_string_sized_new         (guint		  dfl_size);
 void	     g_string_free	        (GString	 *string,
 					 gboolean	  free_segment);
+gboolean     g_string_equal             (const GString	 *v,
+					 const GString 	 *v2);
+guint        g_string_hash              (const GString   *str);
 GString*     g_string_assign            (GString	 *string,
 					 const gchar	 *rval);
 GString*     g_string_truncate          (GString	 *string,
@@ -1989,13 +1992,13 @@ GByteArray* g_byte_array_remove_index_fast (GByteArray	 *array,
 
 /* Hash Functions
  */
-gint  g_str_equal (gconstpointer   v,
+gboolean g_str_equal (gconstpointer   v,
-		   gconstpointer   v2);
+		      gconstpointer   v2);
-guint g_str_hash  (gconstpointer   v);
+guint	 g_str_hash  (gconstpointer   v);
 
-gint  g_int_equal (gconstpointer   v,
+gint	 g_int_equal (gconstpointer   v,
-		   gconstpointer   v2);
+		      gconstpointer   v2);
-guint g_int_hash  (gconstpointer   v);
+guint	 g_int_hash  (gconstpointer   v);
 
 /* This "hash" function will just return the key's adress as an
  * unsigned integer. Useful for hashing on plain adresses or

glib/Makefile.am

@@ -134,7 +134,10 @@ sanity:
 	./sanity_check $(VERSION)
 
 snapshot:
-	$(MAKE) dist distdir=$(PACKAGE)`date +"%y%m%d"`
+	$(MAKE) dist distdir=$(PACKAGE)-snap`date +"%Y%m%d"`
+
+snapcheck:
+	$(MAKE) distcheck distdir=$(PACKAGE)-snap`date +"%Y%m%d"`
 
 dist-hook:
 	cp glib.spec $(distdir)

glib/glib.h

@@ -1865,6 +1865,9 @@ GString*     g_string_new	        (const gchar	 *init);
 GString*     g_string_sized_new         (guint		  dfl_size);
 void	     g_string_free	        (GString	 *string,
 					 gboolean	  free_segment);
+gboolean     g_string_equal             (const GString	 *v,
+					 const GString 	 *v2);
+guint        g_string_hash              (const GString   *str);
 GString*     g_string_assign            (GString	 *string,
 					 const gchar	 *rval);
 GString*     g_string_truncate          (GString	 *string,
@@ -1989,13 +1992,13 @@ GByteArray* g_byte_array_remove_index_fast (GByteArray	 *array,
 
 /* Hash Functions
  */
-gint  g_str_equal (gconstpointer   v,
+gboolean g_str_equal (gconstpointer   v,
-		   gconstpointer   v2);
+		      gconstpointer   v2);
-guint g_str_hash  (gconstpointer   v);
+guint	 g_str_hash  (gconstpointer   v);
 
-gint  g_int_equal (gconstpointer   v,
+gint	 g_int_equal (gconstpointer   v,
-		   gconstpointer   v2);
+		      gconstpointer   v2);
-guint g_int_hash  (gconstpointer   v);
+guint	 g_int_hash  (gconstpointer   v);
 
 /* This "hash" function will just return the key's adress as an
  * unsigned integer. Useful for hashing on plain adresses or

glib/gstring.c

@@ -67,7 +67,7 @@ static GMemChunk *string_mem_chunk = NULL;
 /* Hash Functions.
  */
 
-gint
+gboolean
 g_str_equal (gconstpointer v1,
 	     gconstpointer v2)
 {
@@ -265,6 +265,48 @@ g_string_free (GString *string,
   G_UNLOCK (string_mem_chunk);
 }
 
+gboolean
+g_string_equal (const GString *v,
+                const GString *v2)
+{
+  gchar *p, *q;
+  GRealString *string1 = (GRealString *) v;
+  GRealString *string2 = (GRealString *) v2;
+  gint i = string1->len;
+
+  if (i != string2->len)
+    return FALSE;
+
+  p = string1->str;
+  q = string2->str;
+  while (i)
+    {
+      if (*p != *q)
+	return FALSE;
+      p++;
+      q++;
+      i--;
+    }
+  return TRUE;
+}
+
+/* 31 bit hash function */
+guint
+g_string_hash (const GString *str)
+{
+  const gchar *p = str->str;
+  gint n = str->len;
+  guint h = 0;
+
+  while (n--)
+    {
+      h = (h << 5) - h + *p;
+      p++;
+    }
+
+  return h;
+}
+
 GString*
 g_string_assign (GString     *string,
 		 const gchar *rval)
@@ -320,7 +362,7 @@ g_string_insert_len (GString     *fstring,
     g_memmove (string->str + pos + len, string->str + pos, string->len - pos);
   
   /* insert the new string */
-  strncpy (string->str + pos, val, len);
+  g_memmove (string->str + pos, val, len);
 
   string->len += len;
 
@@ -457,15 +499,17 @@ g_string_down (GString *fstring)
 {
   GRealString *string = (GRealString *) fstring;
   guchar *s;
+  gint n = string->len;
 
   g_return_val_if_fail (string != NULL, NULL);
 
   s = string->str;
 
-  while (*s)
+  while (n)
     {
       *s = tolower (*s);
       s++;
+      n--;
     }
 
   return fstring;
@@ -476,15 +520,17 @@ g_string_up (GString *fstring)
 {
   GRealString *string = (GRealString *) fstring;
   guchar *s;
+  gint n = string->len;
 
   g_return_val_if_fail (string != NULL, NULL);
 
   s = string->str;
 
-  while (*s)
+  while (n)
     {
       *s = toupper (*s);
       s++;
+      n--;
     }
 
   return fstring;

gstring.c

@@ -67,7 +67,7 @@ static GMemChunk *string_mem_chunk = NULL;
 /* Hash Functions.
  */
 
-gint
+gboolean
 g_str_equal (gconstpointer v1,
 	     gconstpointer v2)
 {
@@ -265,6 +265,48 @@ g_string_free (GString *string,
   G_UNLOCK (string_mem_chunk);
 }
 
+gboolean
+g_string_equal (const GString *v,
+                const GString *v2)
+{
+  gchar *p, *q;
+  GRealString *string1 = (GRealString *) v;
+  GRealString *string2 = (GRealString *) v2;
+  gint i = string1->len;
+
+  if (i != string2->len)
+    return FALSE;
+
+  p = string1->str;
+  q = string2->str;
+  while (i)
+    {
+      if (*p != *q)
+	return FALSE;
+      p++;
+      q++;
+      i--;
+    }
+  return TRUE;
+}
+
+/* 31 bit hash function */
+guint
+g_string_hash (const GString *str)
+{
+  const gchar *p = str->str;
+  gint n = str->len;
+  guint h = 0;
+
+  while (n--)
+    {
+      h = (h << 5) - h + *p;
+      p++;
+    }
+
+  return h;
+}
+
 GString*
 g_string_assign (GString     *string,
 		 const gchar *rval)
@@ -320,7 +362,7 @@ g_string_insert_len (GString     *fstring,
     g_memmove (string->str + pos + len, string->str + pos, string->len - pos);
   
   /* insert the new string */
-  strncpy (string->str + pos, val, len);
+  g_memmove (string->str + pos, val, len);
 
   string->len += len;
 
@@ -457,15 +499,17 @@ g_string_down (GString *fstring)
 {
   GRealString *string = (GRealString *) fstring;
   guchar *s;
+  gint n = string->len;
 
   g_return_val_if_fail (string != NULL, NULL);
 
   s = string->str;
 
-  while (*s)
+  while (n)
     {
       *s = tolower (*s);
       s++;
+      n--;
     }
 
   return fstring;
@@ -476,15 +520,17 @@ g_string_up (GString *fstring)
 {
   GRealString *string = (GRealString *) fstring;
   guchar *s;
+  gint n = string->len;
 
   g_return_val_if_fail (string != NULL, NULL);
 
   s = string->str;
 
-  while (*s)
+  while (n)
     {
       *s = toupper (*s);
       s++;
+      n--;
     }
 
   return fstring;

testglib.c

@@ -798,6 +798,35 @@ main (int   argc,
   
   g_print ("ok\n");
 
+  /* g_string_equal */
+  string1 = g_string_new ("test");
+  string2 = g_string_new ("te");
+  g_assert (! g_string_equal(string1, string2));
+  g_string_append (string2, "st");
+  g_assert (g_string_equal(string1, string2));
+  g_string_free (string1, TRUE);
+  g_string_free (string2, TRUE);
+  
+  /* Check handling of embedded ASCII 0 (NUL) characters in GString. */
+  string1 = g_string_new ("fiddle");
+  string2 = g_string_new ("fiddle");
+  g_assert (g_string_equal(string1, string2));
+  g_string_append_c(string1, '\0');
+  g_assert (! g_string_equal(string1, string2));
+  g_string_append_c(string2, '\0');
+  g_assert (g_string_equal(string1, string2));
+  g_string_append_c(string1, 'x');
+  g_string_append_c(string2, 'y');
+  g_assert (! g_string_equal(string1, string2));
+  g_assert (string1->len == 8);
+  g_string_append(string1, "yzzy");
+  g_assert (string1->len == 12);
+  g_assert ( memcmp(string1->str, "fiddle\0xyzzy", 13) == 0);
+  g_string_insert(string1, 1, "QED");
+  g_assert ( memcmp(string1->str, "fQEDiddle\0xyzzy", 16) == 0);
+  g_string_free (string1, TRUE);
+  g_string_free (string2, TRUE);
+  
   g_print ("checking timers...\n");
   
   timer = g_timer_new ();

tests/string-test.c

@@ -180,6 +180,35 @@ main (int   argc,
   g_assert (strcmp (string1->str, "firstlast") == 0);
   g_string_free (string1, TRUE);
 
+  /* g_string_equal */
+  string1 = g_string_new ("test");
+  string2 = g_string_new ("te");
+  g_assert (! g_string_equal(string1, string2));
+  g_string_append (string2, "st");
+  g_assert (g_string_equal(string1, string2));
+  g_string_free (string1, TRUE);
+  g_string_free (string2, TRUE);
+  
+  /* Check handling of embedded ASCII 0 (NUL) characters in GString. */
+  string1 = g_string_new ("fiddle");
+  string2 = g_string_new ("fiddle");
+  g_assert (g_string_equal(string1, string2));
+  g_string_append_c(string1, '\0');
+  g_assert (! g_string_equal(string1, string2));
+  g_string_append_c(string2, '\0');
+  g_assert (g_string_equal(string1, string2));
+  g_string_append_c(string1, 'x');
+  g_string_append_c(string2, 'y');
+  g_assert (! g_string_equal(string1, string2));
+  g_assert (string1->len == 8);
+  g_string_append(string1, "yzzy");
+  g_assert (string1->len == 12);
+  g_assert ( memcmp(string1->str, "fiddle\0xyzzy", 13) == 0);
+  g_string_insert(string1, 1, "QED");
+  g_assert ( memcmp(string1->str, "fQEDiddle\0xyzzy", 16) == 0);
+  g_string_free (string1, TRUE);
+  g_string_free (string2, TRUE);
+  
   return 0;
 }
 

tests/testglib.c

@@ -798,6 +798,35 @@ main (int   argc,
   
   g_print ("ok\n");
 
+  /* g_string_equal */
+  string1 = g_string_new ("test");
+  string2 = g_string_new ("te");
+  g_assert (! g_string_equal(string1, string2));
+  g_string_append (string2, "st");
+  g_assert (g_string_equal(string1, string2));
+  g_string_free (string1, TRUE);
+  g_string_free (string2, TRUE);
+  
+  /* Check handling of embedded ASCII 0 (NUL) characters in GString. */
+  string1 = g_string_new ("fiddle");
+  string2 = g_string_new ("fiddle");
+  g_assert (g_string_equal(string1, string2));
+  g_string_append_c(string1, '\0');
+  g_assert (! g_string_equal(string1, string2));
+  g_string_append_c(string2, '\0');
+  g_assert (g_string_equal(string1, string2));
+  g_string_append_c(string1, 'x');
+  g_string_append_c(string2, 'y');
+  g_assert (! g_string_equal(string1, string2));
+  g_assert (string1->len == 8);
+  g_string_append(string1, "yzzy");
+  g_assert (string1->len == 12);
+  g_assert ( memcmp(string1->str, "fiddle\0xyzzy", 13) == 0);
+  g_string_insert(string1, 1, "QED");
+  g_assert ( memcmp(string1->str, "fQEDiddle\0xyzzy", 16) == 0);
+  g_string_free (string1, TRUE);
+  g_string_free (string2, TRUE);
+  
   g_print ("checking timers...\n");
   
   timer = g_timer_new ();