Use bool for Emacs Lisp booleans.

This is more natural, and on my platform (GCC 4.7.1 x86-64) it
makes Emacs's text size .03% smaller and presumably a bit faster.
* admin/merge-gnulib (GNULIB_MODULES): Add stdbool.  This documents a
new direct dependency; stdbool was already being used indirectly
via other gnulib modules.
* lib-src/make-docfile.c (enum global_type): Sort values roughly in
decreasing alignment, except put functions last.
(compare_globals): Use this new property of enum global_type.
(write_globals): Use bool, not int, for booleans.
* src/lisp.h: Include <stdbool.h>.
(struct Lisp_Boolfwd, defvar_bool):
* src/lread.c (defvar_bool): Use bool, not int, for Lisp booleans.
* src/regex.c [!emacs]: Include <stdbool.h>.
(false, true): Remove; <stdbool.h> does this for us now.

diff --git a/admin/ChangeLog b/admin/ChangeLog
index 18bb444..c579930 100644 (file)
--- a/admin/ChangeLog
+++ b/admin/ChangeLog
@@ -1,3 +1,10 @@
+2012-08-14  Paul Eggert  <eggert@cs.ucla.edu>
+
+       Use bool for Emacs Lisp booleans.
+       * merge-gnulib (GNULIB_MODULES): Add stdbool.  This documents a
+       new direct dependency; stdbool was already being used indirectly
+       via other gnulib modules.
+
 2012-08-11  Glenn Morris  <rgm@gnu.org>
 
        * bzrmerge.el (bzrmerge-resolve): Disable local eval:.

diff --git a/admin/merge-gnulib b/admin/merge-gnulib
index 49d194c..c5b9eba 100755 (executable)
--- a/admin/merge-gnulib
+++ b/admin/merge-gnulib
@@ -32,7 +32,7 @@ GNULIB_MODULES='
   filemode getloadavg getopt-gnu gettime gettimeofday
   ignore-value intprops largefile lstat
   manywarnings mktime pselect pthread_sigmask readlink
-  socklen stat-time stdalign stdarg stdio
+  socklen stat-time stdalign stdarg stdbool stdio
   strftime strtoimax strtoumax symlink sys_stat
   sys_time time timespec-add timespec-sub utimens
   warnings

diff --git a/lib-src/ChangeLog b/lib-src/ChangeLog
index 98a7b25..01248e5 100644 (file)
--- a/lib-src/ChangeLog
+++ b/lib-src/ChangeLog
@@ -1,3 +1,10 @@
+2012-08-14  Paul Eggert  <eggert@cs.ucla.edu>
+
+       * make-docfile.c (enum global_type): Sort values roughly in
+       decreasing alignment, except put functions last.
+       (compare_globals): Use this new property of enum global_type.
+       (write_globals): Use bool, not int, for booleans.
+
 2012-08-10  Glenn Morris  <rgm@gnu.org>
 
        * make-docfile.c (IF_LINT):

diff --git a/lib-src/make-docfile.c b/lib-src/make-docfile.c
index dafb7c0..2654387 100644 (file)
--- a/lib-src/make-docfile.c
+++ b/lib-src/make-docfile.c
@@ -545,14 +545,15 @@ write_c_args (FILE *out, char *func, char *buf, int minargs, int maxargs)
   putc (')', out);
 }
 \f
-/* The types of globals.  */
+/* The types of globals.  These are sorted roughly in decreasing alignment
+   order to avoid allocation gaps, except that functions are last.  */
 enum global_type
 {
-  FUNCTION,
+  INVALID,
+  LISP_OBJECT,
   EMACS_INTEGER,
   BOOLEAN,
-  LISP_OBJECT,
-  INVALID
+  FUNCTION,
 };
 
 /* A single global.  */
@@ -601,13 +602,8 @@ compare_globals (const void *a, const void *b)
   const struct global *ga = a;
   const struct global *gb = b;
 
-  if (ga->type == FUNCTION)
-    {
-      if (gb->type != FUNCTION)
-       return 1;
-    }
-  else if (gb->type == FUNCTION)
-    return -1;
+  if (ga->type != gb->type)
+    return ga->type - gb->type;
 
   return strcmp (ga->name, gb->name);
 }
@@ -634,7 +630,7 @@ write_globals (void)
          type = "EMACS_INT";
          break;
        case BOOLEAN:
-         type = "int";
+         type = "bool";
          break;
        case LISP_OBJECT:
          type = "Lisp_Object";

diff --git a/src/ChangeLog b/src/ChangeLog
index 956d692..ed711b3 100644 (file)
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,14 @@
+2012-08-14  Paul Eggert  <eggert@cs.ucla.edu>
+
+       Use bool, not int, for Lisp booleans.
+       This is more natural, and on my platform (GCC 4.7.1 x86-64) it
+       makes Emacs a bit smaller and presumably a bit faster.
+       * lisp.h: Include <stdbool.h>.
+       (struct Lisp_Boolfwd, defvar_bool):
+       * lread.c (defvar_bool): Use bool, not int, for Lisp booleans.
+       * regex.c [!emacs]: Include <stdbool.h>.
+       (false, true): Remove; <stdbool.h> does this for us now.
+
 2012-08-14  Chong Yidong  <cyd@gnu.org>
 
        * character.c (Fcharacterp): Doc fix (Bug#12076).

diff --git a/src/lisp.h b/src/lisp.h
index f6aa46d..a0d47b3 100644 (file)
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -22,6 +22,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <stdalign.h>
 #include <stdarg.h>
+#include <stdbool.h>
 #include <stddef.h>
 #include <inttypes.h>
 #include <limits.h>
@@ -1394,7 +1395,7 @@ struct Lisp_Intfwd
 struct Lisp_Boolfwd
   {
     enum Lisp_Fwd_Type type;   /* = Lisp_Fwd_Bool */
-    int *boolvar;
+    bool *boolvar;
   };
 
 /* Forwarding pointer to a Lisp_Object variable.
@@ -1929,7 +1930,7 @@ enum maxargs
 
 extern void defvar_lisp (struct Lisp_Objfwd *, const char *, Lisp_Object *);
 extern void defvar_lisp_nopro (struct Lisp_Objfwd *, const char *, Lisp_Object *);
-extern void defvar_bool (struct Lisp_Boolfwd *, const char *, int *);
+extern void defvar_bool (struct Lisp_Boolfwd *, const char *, bool *);
 extern void defvar_int (struct Lisp_Intfwd *, const char *, EMACS_INT *);
 extern void defvar_kboard (struct Lisp_Kboard_Objfwd *, const char *, int);
 

diff --git a/src/lread.c b/src/lread.c
index 3dd13c3..72991e9 100644 (file)
--- a/src/lread.c
+++ b/src/lread.c
@@ -3987,7 +3987,7 @@ defvar_int (struct Lisp_Intfwd *i_fwd,
    nil if address contains 0.  */
 void
 defvar_bool (struct Lisp_Boolfwd *b_fwd,
-            const char *namestring, int *address)
+            const char *namestring, bool *address)
 {
   Lisp_Object sym;
   sym = intern_c_string (namestring);

diff --git a/src/regex.c b/src/regex.c
index afe3751..472ef72 100644 (file)
--- a/src/regex.c
+++ b/src/regex.c
@@ -248,6 +248,7 @@ xrealloc (void *block, size_t size)
 # endif
 # define realloc xrealloc
 
+# include <stdbool.h>
 # include <string.h>
 
 /* Define the syntax stuff for \<, \>, etc.  */
@@ -535,8 +536,6 @@ typedef const unsigned char re_char;
 #endif
 
 typedef char boolean;
-#define false 0
-#define true 1
 
 static regoff_t re_match_2_internal (struct re_pattern_buffer *bufp,
                                     re_char *string1, size_t size1,