* src/lisp.h (CHECK_BOOLEAN): New function.

* src/alloc.c (Fbool_vector): New function.
(syms_of_alloc): Defsubr it.
* src/data.c (Qbooleanp): New symbol.
(syms_of_data): DEFSYM it.
* src/dbusbind.c (xd_signature): Use CHECK_BOOLEAN.
* doc/lispref/sequences.texi (Bool-vectors): Mention bool-vector.

5 files changed, 38 insertions, 4 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 31fe13e074c..06377ba257d 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,12 @@
+2014-05-19  Dmitry Antipov  <dmantipov@yandex.ru>
+
+        * lisp.h (CHECK_BOOLEAN): New function.
+        * alloc.c (Fbool_vector): New function.
+        (syms_of_alloc): Defsubr it.
+        * data.c (Qbooleanp): New symbol.
+        (syms_of_data): DEFSYM it.
+        * dbusbind.c (xd_signature): Use CHECK_BOOLEAN.
+
 2014-05-17  Paul Eggert  <eggert@cs.ucla.edu>
 
         Assume C99 or later (Bug#17487).
diff --git a/src/alloc.c b/src/alloc.c
index 7159d1fa747..e808c3d4bf3 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -2174,6 +2174,25 @@ LENGTH must be a number.  INIT matters only in whether it is t or nil.  */)
   return bool_vector_fill (val, init);
 }
 
+DEFUN ("bool-vector", Fbool_vector, Sbool_vector, 0, MANY, 0,
+       doc: /* Return a new bool-vector with specified arguments as elements.
+Any number of arguments, even zero arguments, are allowed.
+Each argument should be either t or nil.
+usage: (bool-vector &rest OBJECTS)  */)
+  (ptrdiff_t nargs, Lisp_Object *args)
+{
+  ptrdiff_t i;
+  Lisp_Object vector;
+
+  for (i = 0; i < nargs; i++)
+    CHECK_BOOLEAN (args[i]);
+
+  vector = make_uninit_bool_vector (nargs);
+  for (i = 0; i < nargs; i++)
+    bool_vector_set (vector, i, !NILP (args[i]));
+
+  return vector;
+}
 
 /* Make a string from NBYTES bytes at CONTENTS, and compute the number
    of characters from the contents.  This string may be unibyte or
@@ -7102,6 +7121,7 @@ The time is in seconds as a floating point value.  */);
   defsubr (&Scons);
   defsubr (&Slist);
   defsubr (&Svector);
+  defsubr (&Sbool_vector);
   defsubr (&Smake_byte_code);
   defsubr (&Smake_list);
   defsubr (&Smake_vector);
diff --git a/src/data.c b/src/data.c
index bf863aaed79..4061311e7ba 100644
--- a/src/data.c
+++ b/src/data.c
@@ -54,7 +54,7 @@ Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive;
 Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only;
 Lisp_Object Qtext_read_only;
 
-Lisp_Object Qintegerp, Qwholenump, Qsymbolp, Qlistp, Qconsp;
+Lisp_Object Qintegerp, Qwholenump, Qsymbolp, Qlistp, Qconsp, Qbooleanp;
 static Lisp_Object Qnatnump;
 Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp;
 Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp;
@@ -3442,6 +3442,7 @@ syms_of_data (void)
 
   DEFSYM (Qlistp, "listp");
   DEFSYM (Qconsp, "consp");
+  DEFSYM (Qbooleanp, "booleanp");
   DEFSYM (Qsymbolp, "symbolp");
   DEFSYM (Qkeywordp, "keywordp");
   DEFSYM (Qintegerp, "integerp");
diff --git a/src/dbusbind.c b/src/dbusbind.c
index 8997e01b068..768e0a11b1c 100644
--- a/src/dbusbind.c
+++ b/src/dbusbind.c
@@ -387,8 +387,7 @@ xd_signature (char *signature, int dtype, int parent_type, Lisp_Object object)
       break;
 
     case DBUS_TYPE_BOOLEAN:
-      if (!EQ (object, Qt) && !EQ (object, Qnil))
-        wrong_type_argument (intern ("booleanp"), object);
+      CHECK_BOOLEAN (object);
       sprintf (signature, "%c", dtype);
       break;
 
diff --git a/src/lisp.h b/src/lisp.h
index 67b26ef91c7..88ccaec4070 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -796,7 +796,7 @@ extern int char_table_translate (Lisp_Object, int);
 /* Defined in data.c.  */
 extern Lisp_Object Qarrayp, Qbufferp, Qbuffer_or_string_p, Qchar_table_p;
 extern Lisp_Object Qconsp, Qfloatp, Qintegerp, Qlambda, Qlistp, Qmarkerp, Qnil;
-extern Lisp_Object Qnumberp, Qstringp, Qsymbolp, Qt, Qvectorp;
+extern Lisp_Object Qnumberp, Qstringp, Qsymbolp, Qt, Qvectorp, Qbooleanp;
 extern Lisp_Object Qbool_vector_p;
 extern Lisp_Object Qvector_or_char_table_p, Qwholenump;
 extern Lisp_Object Qwindow;
@@ -2510,6 +2510,11 @@ CHECK_CONS (Lisp_Object x)
   CHECK_TYPE (CONSP (x), Qconsp, x);
 }
 INLINE void
+CHECK_BOOLEAN (Lisp_Object x)
+{
+  CHECK_TYPE (EQ (x, Qt) || EQ (x, Qnil), Qbooleanp, x);
+}
+INLINE void
 CHECK_VECTOR (Lisp_Object x)
 {
   CHECK_TYPE (VECTORP (x), Qvectorp, x);