Fix Imenu regression.

[gnu-emacs] / src / data.c

diff --git a/src/data.c b/src/data.c
index 415a89623504fbbd6272024f9c572140d4f1bca4..abcdd4dca0d0953918e8dbfacc0ca2e03fe1b758 100644 (file)
--- a/src/data.c
+++ b/src/data.c
@@ -19,9 +19,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
-#include <signal.h>
 #include <stdio.h>
-#include <setjmp.h>
 
 #include <intprops.h>
 
@@ -36,19 +34,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #include "font.h"
 #include "keymap.h"
 
-#include <float.h>
-/* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*.  */
-#ifndef IEEE_FLOATING_POINT
-#if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \
-     && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128)
-#define IEEE_FLOATING_POINT 1
-#else
-#define IEEE_FLOATING_POINT 0
-#endif
-#endif
-
-#include <math.h>
-
 Lisp_Object Qnil, Qt, Qquote, Qlambda, Qunbound;
 static Lisp_Object Qsubr;
 Lisp_Object Qerror_conditions, Qerror_message, Qtop_level;
@@ -77,8 +62,8 @@ Lisp_Object Qchar_table_p, Qvector_or_char_table_p;
 Lisp_Object Qcdr;
 static Lisp_Object Qad_advice_info, Qad_activate_internal;
 
-Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error;
-Lisp_Object Qoverflow_error, Qunderflow_error;
+static Lisp_Object Qdomain_error, Qsingularity_error, Qunderflow_error;
+Lisp_Object Qrange_error, Qoverflow_error;
 
 Lisp_Object Qfloatp;
 Lisp_Object Qnumberp, Qnumber_or_marker_p;
@@ -954,8 +939,10 @@ store_symval_forwarding (union Lisp_Fwd *valcontents, register Lisp_Object newva
     }
 }
 
-/* Set up SYMBOL to refer to its global binding.
-   This makes it safe to alter the status of other bindings.  */
+/* Set up SYMBOL to refer to its global binding.  This makes it safe
+   to alter the status of other bindings.  BEWARE: this may be called
+   during the mark phase of GC, where we assume that Lisp_Object slots
+   of BLV are marked after this function has changed them.  */
 
 void
 swap_in_global_binding (struct Lisp_Symbol *symbol)
@@ -1014,7 +1001,7 @@ swap_in_symval_forwarding (struct Lisp_Symbol *symbol, struct Lisp_Buffer_Local_
        else
          {
            tem1 = assq_no_quit (var, BVAR (current_buffer, local_var_alist));
-           XSETBUFFER (blv->where, current_buffer);
+           set_blv_where (blv, Fcurrent_buffer ());
          }
       }
       if (!(blv->found = !NILP (tem1)))
@@ -1168,7 +1155,7 @@ set_internal (Lisp_Object symbol, Lisp_Object newval, Lisp_Object where,
           the default binding is loaded, the loaded binding may be the
           wrong one.  */
        if (!EQ (blv->where, where)
-           /* Also unload a global binding (if the var is local_if_set). */
+           /* Also unload a global binding (if the var is local_if_set).  */
            || (EQ (blv->valcell, blv->defcell)))
          {
            /* The currently loaded binding is not necessarily valid.
@@ -1883,12 +1870,12 @@ BUFFER defaults to the current buffer.  */)
 
 DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p,
        1, 2, 0,
-       doc: /* Non-nil if VARIABLE will be local in buffer BUFFER when set there.
-More precisely, this means that setting the variable \(with `set' or`setq'),
-while it does not have a `let'-style binding that was made in BUFFER,
-will produce a buffer local binding.  See Info node
-`(elisp)Creating Buffer-Local'.
-BUFFER defaults to the current buffer.  */)
+       doc: /* Non-nil if VARIABLE is local in buffer BUFFER when set there.
+BUFFER defaults to the current buffer.
+
+More precisely, return non-nil if either VARIABLE already has a local
+value in BUFFER, or if VARIABLE is automatically buffer-local (see
+`make-variable-buffer-local').  */)
   (register Lisp_Object variable, Lisp_Object buffer)
 {
   struct Lisp_Symbol *sym;
@@ -2738,28 +2725,6 @@ Both must be integers or markers.  */)
   return val;
 }
 
-#ifndef HAVE_FMOD
-double
-fmod (double f1, double f2)
-{
-  double r = f1;
-
-  if (f2 < 0.0)
-    f2 = -f2;
-
-  /* If the magnitude of the result exceeds that of the divisor, or
-     the sign of the result does not agree with that of the dividend,
-     iterate with the reduced value.  This does not yield a
-     particularly accurate result, but at least it will be in the
-     range promised by fmod.  */
-  do
-    r -= f2 * floor (r / f2);
-  while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r)));
-
-  return r;
-}
-#endif /* ! HAVE_FMOD */
-
 DEFUN ("mod", Fmod, Smod, 2, 2, 0,
        doc: /* Return X modulo Y.
 The result falls between zero (inclusive) and Y (exclusive).
@@ -3206,29 +3171,3 @@ syms_of_data (void)
   Vmost_negative_fixnum = make_number (MOST_NEGATIVE_FIXNUM);
   XSYMBOL (intern_c_string ("most-negative-fixnum"))->constant = 1;
 }
-
-#ifndef FORWARD_SIGNAL_TO_MAIN_THREAD
-_Noreturn
-#endif
-static void
-arith_error (int signo)
-{
-  sigsetmask (SIGEMPTYMASK);
-
-  SIGNAL_THREAD_CHECK (signo);
-  xsignal0 (Qarith_error);
-}
-
-void
-init_data (void)
-{
-  /* Don't do this if just dumping out.
-     We don't want to call `signal' in this case
-     so that we don't have trouble with dumping
-     signal-delivering routines in an inconsistent state.  */
-#ifndef CANNOT_DUMP
-  if (!initialized)
-    return;
-#endif /* CANNOT_DUMP */
-  signal (SIGFPE, arith_error);
-}