Improve generation of pseudo-random integers. (#99720, Morten Welinder

2002-12-10  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>

        * glib/grand.c (g_rand_int_range): Improve generation of
        pseudo-random integers. (#99720, Morten Welinder <terra@diku.dk>)

        * README.in, docs/reference/glib/running.sgml,
        docs/reference/glib/tmpl/random_numbers.sgml,
        docs/reference/glib/changes.sgml: Added notes about the new
        algorithm.

2CVS: ----------------------------------------------------------------------

diff --git a/ChangeLog b/ChangeLog
index 6f1201f..272b36d 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2002-12-10  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>
+
+       * glib/grand.c (g_rand_int_range): Improve generation of
+       pseudo-random integers. (#99720, Morten Welinder <terra@diku.dk>)
+
+       * README.in, docs/reference/glib/running.sgml,
+       docs/reference/glib/tmpl/random_numbers.sgml,
+       docs/reference/glib/changes.sgml: Added notes about the new
+       algorithm.
+
 2002-12-09  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>
 
        * configure.in: use 0 instead of $defattr, as it isn't defined

diff --git a/ChangeLog.pre-2-10 b/ChangeLog.pre-2-10
index 6f1201f..272b36d 100644 (file)
--- a/ChangeLog.pre-2-10
+++ b/ChangeLog.pre-2-10
@@ -1,3 +1,13 @@
+2002-12-10  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>
+
+       * glib/grand.c (g_rand_int_range): Improve generation of
+       pseudo-random integers. (#99720, Morten Welinder <terra@diku.dk>)
+
+       * README.in, docs/reference/glib/running.sgml,
+       docs/reference/glib/tmpl/random_numbers.sgml,
+       docs/reference/glib/changes.sgml: Added notes about the new
+       algorithm.
+
 2002-12-09  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>
 
        * configure.in: use 0 instead of $defattr, as it isn't defined

diff --git a/ChangeLog.pre-2-12 b/ChangeLog.pre-2-12
index 6f1201f..272b36d 100644 (file)
--- a/ChangeLog.pre-2-12
+++ b/ChangeLog.pre-2-12
@@ -1,3 +1,13 @@
+2002-12-10  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>
+
+       * glib/grand.c (g_rand_int_range): Improve generation of
+       pseudo-random integers. (#99720, Morten Welinder <terra@diku.dk>)
+
+       * README.in, docs/reference/glib/running.sgml,
+       docs/reference/glib/tmpl/random_numbers.sgml,
+       docs/reference/glib/changes.sgml: Added notes about the new
+       algorithm.
+
 2002-12-09  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>
 
        * configure.in: use 0 instead of $defattr, as it isn't defined

diff --git a/ChangeLog.pre-2-2 b/ChangeLog.pre-2-2
index 6f1201f..272b36d 100644 (file)
--- a/ChangeLog.pre-2-2
+++ b/ChangeLog.pre-2-2
@@ -1,3 +1,13 @@
+2002-12-10  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>
+
+       * glib/grand.c (g_rand_int_range): Improve generation of
+       pseudo-random integers. (#99720, Morten Welinder <terra@diku.dk>)
+
+       * README.in, docs/reference/glib/running.sgml,
+       docs/reference/glib/tmpl/random_numbers.sgml,
+       docs/reference/glib/changes.sgml: Added notes about the new
+       algorithm.
+
 2002-12-09  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>
 
        * configure.in: use 0 instead of $defattr, as it isn't defined

diff --git a/ChangeLog.pre-2-4 b/ChangeLog.pre-2-4
index 6f1201f..272b36d 100644 (file)
--- a/ChangeLog.pre-2-4
+++ b/ChangeLog.pre-2-4
@@ -1,3 +1,13 @@
+2002-12-10  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>
+
+       * glib/grand.c (g_rand_int_range): Improve generation of
+       pseudo-random integers. (#99720, Morten Welinder <terra@diku.dk>)
+
+       * README.in, docs/reference/glib/running.sgml,
+       docs/reference/glib/tmpl/random_numbers.sgml,
+       docs/reference/glib/changes.sgml: Added notes about the new
+       algorithm.
+
 2002-12-09  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>
 
        * configure.in: use 0 instead of $defattr, as it isn't defined

diff --git a/ChangeLog.pre-2-6 b/ChangeLog.pre-2-6
index 6f1201f..272b36d 100644 (file)
--- a/ChangeLog.pre-2-6
+++ b/ChangeLog.pre-2-6
@@ -1,3 +1,13 @@
+2002-12-10  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>
+
+       * glib/grand.c (g_rand_int_range): Improve generation of
+       pseudo-random integers. (#99720, Morten Welinder <terra@diku.dk>)
+
+       * README.in, docs/reference/glib/running.sgml,
+       docs/reference/glib/tmpl/random_numbers.sgml,
+       docs/reference/glib/changes.sgml: Added notes about the new
+       algorithm.
+
 2002-12-09  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>
 
        * configure.in: use 0 instead of $defattr, as it isn't defined

diff --git a/ChangeLog.pre-2-8 b/ChangeLog.pre-2-8
index 6f1201f..272b36d 100644 (file)
--- a/ChangeLog.pre-2-8
+++ b/ChangeLog.pre-2-8
@@ -1,3 +1,13 @@
+2002-12-10  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>
+
+       * glib/grand.c (g_rand_int_range): Improve generation of
+       pseudo-random integers. (#99720, Morten Welinder <terra@diku.dk>)
+
+       * README.in, docs/reference/glib/running.sgml,
+       docs/reference/glib/tmpl/random_numbers.sgml,
+       docs/reference/glib/changes.sgml: Added notes about the new
+       algorithm.
+
 2002-12-09  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>
 
        * configure.in: use 0 instead of $defattr, as it isn't defined

diff --git a/README.in b/README.in
index 856bab4..56ab9aa 100644 (file)
--- a/README.in
+++ b/README.in
@@ -34,11 +34,16 @@ Notes about GLib-2.2.0
 
           http://www.math.keio.ac.jp/~matumoto/emt.html
 
-  The original seeding algorithm, as found in GLib-2.0.x, can be used
-  instead of the new one by setting the environment variable
-  G_RANDOM_VERSION to the value of "2.0". Use the GLib-2.0 algorithm 
-  only if you have sequences of numbers generated with Glib-2.0 that 
-  you need to reproduce exactly.
+  Also the pseudo-random integers generated by g_rand_int_range and 
+  g_random_int_range will have a slightly better equal distribution
+  with the new version of GLib.
+ 
+  The original algorithms, as found in GLib-2.0.x, can be used instead
+  of the new ones by setting the environment variable G_RANDOM_VERSION
+  to the value of "2.0".
+
+  Use the GLib-2.0 algorithms only if you have sequences of numbers
+  generated with Glib-2.0 that you need to reproduce exactly.
 
 How to report bugs
 ==================

diff --git a/docs/reference/glib/changes.sgml b/docs/reference/glib/changes.sgml
index ae8f503..1dbb74a 100644 (file)
--- a/docs/reference/glib/changes.sgml
+++ b/docs/reference/glib/changes.sgml
@@ -23,7 +23,10 @@ Incompatible changes made between successing versions of GLib
 GLib changed the seeding algorithm for the pseudo-random number
 generator Mersenne Twister, as used by <structname>GRand</structname>
 and <structname>GRandom</structname>. This was necessary, because some
-seeds would yield very bad pseudo-random streams.
+seeds would yield very bad pseudo-random streams. Also the
+pseudo-random integers generated by
+<function>g_rand*_int_range()</function> will have a
+slightly better equal distribution with the new version of GLib.
 </para>
 
 <para>
@@ -33,12 +36,13 @@ url="http://www.math.keio.ac.jp/~matumoto/emt.html">http://www.math.keio.ac.jp/~
 </para> 
 
 <para>
-The original seeding algorithm, as found in GLib 2.0.x, can be used
-instead of the new one by setting the environment variable
-<envar>G_RANDOM_VERSION</envar> to the value of '2.0'. Use the
-GLib-2.0 algorithm only if you have sequences of numbers generated
-with Glib-2.0 that you need to reproduce exactly.
+The original seeding and generation algorithms, as found in GLib
+2.0.x, can be used instead of the new ones by setting the environment
+variable <envar>G_RANDOM_VERSION</envar> to the value of '2.0'. Use
+the GLib-2.0 algorithms only if you have sequences of numbers generated
+with Glib-2.0 that you need to reproduce exactly.  
 </para> 
+
 </listitem>
 
 </itemizedlist>

diff --git a/docs/reference/glib/running.sgml b/docs/reference/glib/running.sgml
index b933883..4335b4f 100644 (file)
--- a/docs/reference/glib/running.sgml
+++ b/docs/reference/glib/running.sgml
@@ -67,12 +67,13 @@ variables like <envar>LANG</envar>, <envar>PATH</envar> or <envar>HOME</envar>.
 
   <para>
     If this environment variable is set to '2.0', the outdated
-    pseudo-random number seeding algorithm from GLib-2.0 is used
-    instead of the new better one. Use the GLib-2.0 algorithm only if
-    you have sequences of numbers generated with Glib-2.0 that you
-    need to reproduce exactly.
-  </para> 
+    pseudo-random number seeding and generation algorithms from
+    GLib-2.0 are used instead of the new better ones. Use the GLib-2.0
+    algorithms only if you have sequences of numbers generated with
+    Glib-2.0 that you need to reproduce exactly.  
+  </para>
 </formalpara> 
+
 </refsect2>
 
 <refsect2>