/* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter.
- Copyright (C) 1985-1986, 1988, 1993-1995, 1997-2013 Free Software
+ Copyright (C) 1985-1986, 1988, 1993-1995, 1997-2014 Free Software
Foundation, Inc.
This file is part of GNU Emacs.
#include <config.h>
#include <stdio.h>
+#include <byteswap.h>
+#include <count-one-bits.h>
+#include <count-trailing-zeros.h>
#include <intprops.h>
#include "lisp.h"
#include "keymap.h"
Lisp_Object Qnil, Qt, Qquote, Qlambda, Qunbound;
+Lisp_Object Qnil_, Qt_;
static Lisp_Object Qsubr;
Lisp_Object Qerror_conditions, Qerror_message, Qtop_level;
Lisp_Object Qerror, Quser_error, Qquit, Qargs_out_of_range;
+static Lisp_Object Qwrong_length_argument;
static Lisp_Object Qwrong_type_argument;
Lisp_Object Qvoid_variable, Qvoid_function;
static Lisp_Object Qcyclic_function_indirection;
static Lisp_Object Qnatnump;
Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp;
Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp;
+Lisp_Object Qbool_vector_p;
Lisp_Object Qbuffer_or_string_p;
static Lisp_Object Qkeywordp, Qboundp;
Lisp_Object Qfboundp;
blv->valcell = val;
}
+static _Noreturn void
+wrong_length_argument (Lisp_Object a1, Lisp_Object a2, Lisp_Object a3)
+{
+ Lisp_Object size1 = make_number (bool_vector_size (a1));
+ Lisp_Object size2 = make_number (bool_vector_size (a2));
+ if (NILP (a3))
+ xsignal2 (Qwrong_length_argument, size1, size2);
+ else
+ xsignal3 (Qwrong_length_argument, size1, size2,
+ make_number (bool_vector_size (a3)));
+}
+
Lisp_Object
wrong_type_argument (register Lisp_Object predicate, register Lisp_Object value)
{
xsignal2 (Qwrong_type_argument, predicate, value);
}
-void
-pure_write_error (Lisp_Object obj)
-{
- xsignal2 (Qerror, build_string ("Attempt to modify read-only object"), obj);
-}
-
void
args_out_of_range (Lisp_Object a1, Lisp_Object a2)
{
for example, (type-of 1) returns `integer'. */)
(Lisp_Object object)
{
- switch (XTYPE (object))
+ if (INTEGERP (object))
+ return Qinteger;
+ else if (SYMBOLP (object))
+ return Qsymbol;
+ else if (STRINGP (object))
+ return Qstring;
+ else if (CONSP (object))
+ return Qcons;
+ else if (MISCP (object))
{
- case_Lisp_Int:
- return Qinteger;
-
- case Lisp_Symbol:
- return Qsymbol;
-
- case Lisp_String:
- return Qstring;
-
- case Lisp_Cons:
- return Qcons;
-
- case Lisp_Misc:
switch (XMISCTYPE (object))
{
case Lisp_Misc_Marker:
return Qfloat;
}
emacs_abort ();
-
- case Lisp_Vectorlike:
+ }
+ else if (VECTORLIKEP (object))
+ {
if (WINDOW_CONFIGURATIONP (object))
return Qwindow_configuration;
if (PROCESSP (object))
if (FONT_OBJECT_P (object))
return Qfont_object;
return Qvector;
-
- case Lisp_Float:
- return Qfloat;
-
- default:
- emacs_abort ();
}
+ else if (FLOATP (object))
+ return Qfloat;
+ else
+ return Qt;
}
DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0,
return Qnil;
}
+static bool
+SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (Lisp_Object sym)
+{
+ /* Should be initial_obarray */
+ Lisp_Object tem = Ffind_symbol (SYMBOL_NAME (sym), Vobarray);
+ return (! NILP (scm_c_value_ref (tem, 1))
+ && (EQ (sym, scm_c_value_ref (tem, 0))));
+}
+
/* Define this in C to avoid unnecessarily consing up the symbol
name. */
DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0,
DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p,
1, 1, 0,
- doc: /* Return t if OBJECT is a multibyte string. */)
+ doc: /* Return t if OBJECT is a multibyte string.
+Return nil if OBJECT is either a unibyte string, or not a string. */)
(Lisp_Object object)
{
if (STRINGP (object) && STRING_MULTIBYTE (object))
struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym);
if (blv->fwd)
/* In set_internal, we un-forward vars when their value is
- set to Qunbound. */
+ set to Qunbound. */
return Qt;
else
{
}
case SYMBOL_FORWARDED:
/* In set_internal, we un-forward vars when their value is
- set to Qunbound. */
+ set to Qunbound. */
return Qt;
default: emacs_abort ();
}
(register Lisp_Object symbol)
{
CHECK_SYMBOL (symbol);
- return NILP (XSYMBOL (symbol)->function) ? Qnil : Qt;
+ return NILP (SYMBOL_FUNCTION (symbol)) ? Qnil : Qt;
}
DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0,
}
DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0,
- doc: /* Return SYMBOL's function definition. Error if that is void. */)
+ doc: /* Return SYMBOL's function definition, or nil if that is void. */)
(register Lisp_Object symbol)
{
CHECK_SYMBOL (symbol);
- return XSYMBOL (symbol)->function;
+ return SYMBOL_FUNCTION (symbol);
}
DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0,
(register Lisp_Object symbol)
{
CHECK_SYMBOL (symbol);
- return XSYMBOL (symbol)->plist;
+ return symbol_plist (symbol);
}
DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0,
register Lisp_Object function;
CHECK_SYMBOL (symbol);
- function = XSYMBOL (symbol)->function;
+ function = SYMBOL_FUNCTION (symbol);
if (!NILP (Vautoload_queue) && !NILP (function))
Vautoload_queue = Fcons (Fcons (symbol, function), Vautoload_queue);
if (AUTOLOADP (function))
Fput (symbol, Qautoload, XCDR (function));
+ /* Convert to eassert or remove after GC bug is found. In the
+ meantime, check unconditionally, at a slight perf hit. */
+ if (valid_lisp_object_p (definition) < 1)
+ emacs_abort ();
+
set_symbol_function (symbol, definition);
return definition;
The optional third argument DOCSTRING specifies the documentation string
for SYMBOL; if it is omitted or nil, SYMBOL uses the documentation string
determined by DEFINITION.
+
+Internally, this normally uses `fset', but if SYMBOL has a
+`defalias-fset-function' property, the associated value is used instead.
+
The return value is undefined. */)
(register Lisp_Object symbol, Lisp_Object definition, Lisp_Object docstring)
{
{ /* Only add autoload entries after dumping, because the ones before are
not useful and else we get loads of them from the loaddefs.el. */
- if (AUTOLOADP (XSYMBOL (symbol)->function))
+ if (AUTOLOADP (SYMBOL_FUNCTION (symbol)))
/* Remember that the function was already an autoload. */
LOADHIST_ATTACH (Fcons (Qt, symbol));
LOADHIST_ATTACH (Fcons (autoload ? Qautoload : Qdefun, symbol));
- (char *) &buffer_defaults);
int idx = PER_BUFFER_IDX (offset);
- Lisp_Object tail;
+ Lisp_Object tail, buf;
if (idx <= 0)
break;
- for (tail = Vbuffer_alist; CONSP (tail); tail = XCDR (tail))
+ FOR_EACH_LIVE_BUFFER (tail, buf)
{
- Lisp_Object lbuf;
- struct buffer *b;
-
- lbuf = Fcdr (XCAR (tail));
- if (!BUFFERP (lbuf)) continue;
- b = XBUFFER (lbuf);
+ struct buffer *b = XBUFFER (buf);
if (! PER_BUFFER_VALUE_P (b, idx))
set_per_buffer_value (b, offset, newval);
local bindings in certain buffers. */)
(Lisp_Object symbol)
{
- register Lisp_Object value;
-
- value = default_value (symbol);
+ Lisp_Object value = default_value (symbol);
if (!EQ (value, Qunbound))
return value;
usage: (setq-default [VAR VALUE]...) */)
(Lisp_Object args)
{
- register Lisp_Object args_left;
- register Lisp_Object val, symbol;
+ Lisp_Object args_left, symbol, val;
struct gcpro gcpro1;
- if (NILP (args))
- return Qnil;
-
- args_left = args;
+ args_left = val = args;
GCPRO1 (args);
- do
+ while (CONSP (args_left))
{
- val = eval_sub (Fcar (Fcdr (args_left)));
+ val = eval_sub (Fcar (XCDR (args_left)));
symbol = XCAR (args_left);
Fset_default (symbol, val);
args_left = Fcdr (XCDR (args_left));
}
- while (!NILP (args_left));
UNGCPRO;
return val;
a `let'-style binding made in this buffer is in effect,
does not make the variable buffer-local. Return VARIABLE.
-In most cases it is better to use `make-local-variable',
-which makes a variable local in just one buffer.
+This globally affects all uses of this variable, so it belongs together with
+the variable declaration, rather than with its uses (if you just want to make
+a variable local to the current buffer for one particular use, use
+`make-local-variable'). Buffer-local bindings are normally cleared
+while setting up a new major mode, unless they have a `permanent-local'
+property.
The function `default-value' gets the default value and `set-default' sets it. */)
(register Lisp_Object variable)
{
union Lisp_Fwd *valcontents = SYMBOL_FWD (sym);
if (KBOARD_OBJFWDP (valcontents))
- return Fframe_terminal (Fselected_frame ());
+ return Fframe_terminal (selected_frame);
else if (!BUFFER_OBJFWDP (valcontents))
return Qnil;
}
}
/* This code is disabled now that we use the selected frame to return
- keyboard-local-values. */
+ keyboard-local-values. */
#if 0
extern struct terminal *get_terminal (Lisp_Object display, int);
{
if (!SYMBOLP (hare) || NILP (hare))
break;
- hare = XSYMBOL (hare)->function;
+ hare = SYMBOL_FUNCTION (hare);
if (!SYMBOLP (hare) || NILP (hare))
break;
- hare = XSYMBOL (hare)->function;
+ hare = SYMBOL_FUNCTION (hare);
- tortoise = XSYMBOL (tortoise)->function;
+ tortoise = SYMBOL_FUNCTION (tortoise);
if (EQ (hare, tortoise))
xsignal1 (Qcyclic_function_indirection, object);
/* Optimize for no indirection. */
result = object;
if (SYMBOLP (result) && !NILP (result)
- && (result = XSYMBOL (result)->function, SYMBOLP (result)))
+ && (result = SYMBOL_FUNCTION (result), SYMBOLP (result)))
result = indirect_function (result);
if (!NILP (result))
return result;
}
else if (BOOL_VECTOR_P (array))
{
- int val;
-
- if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size)
+ if (idxval < 0 || idxval >= bool_vector_size (array))
args_out_of_range (array, idx);
-
- val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR];
- return (val & (1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)) ? Qt : Qnil);
+ return bool_vector_ref (array, idxval);
}
else if (CHAR_TABLE_P (array))
{
}
else if (BOOL_VECTOR_P (array))
{
- int val;
-
- if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size)
+ if (idxval < 0 || idxval >= bool_vector_size (array))
args_out_of_range (array, idx);
-
- val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR];
-
- if (! NILP (newelt))
- val |= 1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR);
- else
- val &= ~(1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR));
- XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR] = val;
+ bool_vector_set (array, idxval, !NILP (newelt));
}
else if (CHAR_TABLE_P (array))
{
\f
/* Arithmetic functions */
-enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal };
-
-static Lisp_Object
-arithcompare (Lisp_Object num1, Lisp_Object num2, enum comparison comparison)
+Lisp_Object
+arithcompare (Lisp_Object num1, Lisp_Object num2, enum Arith_Comparison comparison)
{
double f1 = 0, f2 = 0;
bool floatp = 0;
switch (comparison)
{
- case equal:
+ case ARITH_EQUAL:
if (floatp ? f1 == f2 : XINT (num1) == XINT (num2))
return Qt;
return Qnil;
- case notequal:
+ case ARITH_NOTEQUAL:
if (floatp ? f1 != f2 : XINT (num1) != XINT (num2))
return Qt;
return Qnil;
- case less:
+ case ARITH_LESS:
if (floatp ? f1 < f2 : XINT (num1) < XINT (num2))
return Qt;
return Qnil;
- case less_or_equal:
+ case ARITH_LESS_OR_EQUAL:
if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2))
return Qt;
return Qnil;
- case grtr:
+ case ARITH_GRTR:
if (floatp ? f1 > f2 : XINT (num1) > XINT (num2))
return Qt;
return Qnil;
- case grtr_or_equal:
+ case ARITH_GRTR_OR_EQUAL:
if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2))
return Qt;
return Qnil;
}
}
-DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0,
- doc: /* Return t if two args, both numbers or markers, are equal. */)
- (register Lisp_Object num1, Lisp_Object num2)
+static Lisp_Object
+arithcompare_driver (ptrdiff_t nargs, Lisp_Object *args,
+ enum Arith_Comparison comparison)
{
- return arithcompare (num1, num2, equal);
+ ptrdiff_t argnum;
+ for (argnum = 1; argnum < nargs; ++argnum)
+ {
+ if (EQ (Qnil, arithcompare (args[argnum - 1], args[argnum], comparison)))
+ return Qnil;
+ }
+ return Qt;
}
-DEFUN ("<", Flss, Slss, 2, 2, 0,
- doc: /* Return t if first arg is less than second arg. Both must be numbers or markers. */)
- (register Lisp_Object num1, Lisp_Object num2)
+DEFUN ("=", Feqlsign, Seqlsign, 1, MANY, 0,
+ doc: /* Return t if args, all numbers or markers, are equal.
+usage: (= NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */)
+ (ptrdiff_t nargs, Lisp_Object *args)
{
- return arithcompare (num1, num2, less);
+ return arithcompare_driver (nargs, args, ARITH_EQUAL);
}
-DEFUN (">", Fgtr, Sgtr, 2, 2, 0,
- doc: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */)
- (register Lisp_Object num1, Lisp_Object num2)
+DEFUN ("<", Flss, Slss, 1, MANY, 0,
+ doc: /* Return t if each arg (a number or marker), is less than the next arg.
+usage: (< NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */)
+ (ptrdiff_t nargs, Lisp_Object *args)
{
- return arithcompare (num1, num2, grtr);
+ return arithcompare_driver (nargs, args, ARITH_LESS);
}
-DEFUN ("<=", Fleq, Sleq, 2, 2, 0,
- doc: /* Return t if first arg is less than or equal to second arg.
-Both must be numbers or markers. */)
- (register Lisp_Object num1, Lisp_Object num2)
+DEFUN (">", Fgtr, Sgtr, 1, MANY, 0,
+ doc: /* Return t if each arg (a number or marker) is greater than the next arg.
+usage: (> NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */)
+ (ptrdiff_t nargs, Lisp_Object *args)
{
- return arithcompare (num1, num2, less_or_equal);
+ return arithcompare_driver (nargs, args, ARITH_GRTR);
}
-DEFUN (">=", Fgeq, Sgeq, 2, 2, 0,
- doc: /* Return t if first arg is greater than or equal to second arg.
-Both must be numbers or markers. */)
- (register Lisp_Object num1, Lisp_Object num2)
+DEFUN ("<=", Fleq, Sleq, 1, MANY, 0,
+ doc: /* Return t if each arg (a number or marker) is less than or equal to the next.
+usage: (<= NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */)
+ (ptrdiff_t nargs, Lisp_Object *args)
+{
+ return arithcompare_driver (nargs, args, ARITH_LESS_OR_EQUAL);
+}
+
+DEFUN (">=", Fgeq, Sgeq, 1, MANY, 0,
+ doc: /* Return t if each arg (a number or marker) is greater than or equal to the next.
+usage: (>= NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */)
+ (ptrdiff_t nargs, Lisp_Object *args)
{
- return arithcompare (num1, num2, grtr_or_equal);
+ return arithcompare_driver (nargs, args, ARITH_GRTR_OR_EQUAL);
}
DEFUN ("/=", Fneq, Sneq, 2, 2, 0,
doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */)
(register Lisp_Object num1, Lisp_Object num2)
{
- return arithcompare (num1, num2, notequal);
-}
-
-DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0,
- doc: /* Return t if NUMBER is zero. */)
- (register Lisp_Object number)
-{
- CHECK_NUMBER_OR_FLOAT (number);
-
- if (FLOATP (number))
- {
- if (XFLOAT_DATA (number) == 0.0)
- return Qt;
- return Qnil;
- }
-
- if (!XINT (number))
- return Qt;
- return Qnil;
+ return arithcompare (num1, num2, ARITH_NOTEQUAL);
}
\f
/* Convert the cons-of-integers, integer, or float value C to an
DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0,
doc: /* Parse STRING as a decimal number and return the number.
-This parses both integers and floating point numbers.
-It ignores leading spaces and tabs, and all trailing chars.
+Ignore leading spaces and tabs, and all trailing chars. Return 0 if
+STRING cannot be parsed as an integer or floating point number.
If BASE, interpret STRING as a number in that base. If BASE isn't
present, base 10 is used. BASE must be between 2 and 16 (inclusive).
-If the base used is not 10, STRING is always parsed as integer. */)
+If the base used is not 10, STRING is always parsed as an integer. */)
(register Lisp_Object string, Lisp_Object base)
{
register char *p;
if (XINT (count) >= BITS_PER_EMACS_INT)
XSETINT (val, 0);
else if (XINT (count) > 0)
- XSETINT (val, XINT (value) << XFASTINT (count));
+ XSETINT (val, XUINT (value) << XFASTINT (count));
else if (XINT (count) <= -BITS_PER_EMACS_INT)
XSETINT (val, XINT (value) < 0 ? -1 : 0);
else
return make_number (order);
}
+/* Because we round up the bool vector allocate size to word_size
+ units, we can safely read past the "end" of the vector in the
+ operations below. These extra bits are always zero. */
+
+static bits_word
+bool_vector_spare_mask (EMACS_INT nr_bits)
+{
+ return (((bits_word) 1) << (nr_bits % BITS_PER_BITS_WORD)) - 1;
+}
+
+/* Info about unsigned long long, falling back on unsigned long
+ if unsigned long long is not available. */
+
+#if HAVE_UNSIGNED_LONG_LONG_INT && defined ULLONG_MAX
+enum { BITS_PER_ULL = CHAR_BIT * sizeof (unsigned long long) };
+# define ULL_MAX ULLONG_MAX
+#else
+enum { BITS_PER_ULL = CHAR_BIT * sizeof (unsigned long) };
+# define ULL_MAX ULONG_MAX
+# define count_one_bits_ll count_one_bits_l
+# define count_trailing_zeros_ll count_trailing_zeros_l
+#endif
+
+/* Shift VAL right by the width of an unsigned long long.
+ BITS_PER_ULL must be less than BITS_PER_BITS_WORD. */
+
+static bits_word
+shift_right_ull (bits_word w)
+{
+ /* Pacify bogus GCC warning about shift count exceeding type width. */
+ int shift = BITS_PER_ULL - BITS_PER_BITS_WORD < 0 ? BITS_PER_ULL : 0;
+ return w >> shift;
+}
+
+/* Return the number of 1 bits in W. */
+
+static int
+count_one_bits_word (bits_word w)
+{
+ if (BITS_WORD_MAX <= UINT_MAX)
+ return count_one_bits (w);
+ else if (BITS_WORD_MAX <= ULONG_MAX)
+ return count_one_bits_l (w);
+ else
+ {
+ int i = 0, count = 0;
+ while (count += count_one_bits_ll (w),
+ (i += BITS_PER_ULL) < BITS_PER_BITS_WORD)
+ w = shift_right_ull (w);
+ return count;
+ }
+}
+
+enum bool_vector_op { bool_vector_exclusive_or,
+ bool_vector_union,
+ bool_vector_intersection,
+ bool_vector_set_difference,
+ bool_vector_subsetp };
+
+static Lisp_Object
+bool_vector_binop_driver (Lisp_Object a,
+ Lisp_Object b,
+ Lisp_Object dest,
+ enum bool_vector_op op)
+{
+ EMACS_INT nr_bits;
+ bits_word *adata, *bdata, *destdata;
+ ptrdiff_t i = 0;
+ ptrdiff_t nr_words;
+
+ CHECK_BOOL_VECTOR (a);
+ CHECK_BOOL_VECTOR (b);
+
+ nr_bits = bool_vector_size (a);
+ if (bool_vector_size (b) != nr_bits)
+ wrong_length_argument (a, b, dest);
+
+ nr_words = bool_vector_words (nr_bits);
+ adata = bool_vector_data (a);
+ bdata = bool_vector_data (b);
+
+ if (NILP (dest))
+ {
+ dest = make_uninit_bool_vector (nr_bits);
+ destdata = bool_vector_data (dest);
+ }
+ else
+ {
+ CHECK_BOOL_VECTOR (dest);
+ destdata = bool_vector_data (dest);
+ if (bool_vector_size (dest) != nr_bits)
+ wrong_length_argument (a, b, dest);
+
+ switch (op)
+ {
+ case bool_vector_exclusive_or:
+ for (; i < nr_words; i++)
+ if (destdata[i] != (adata[i] ^ bdata[i]))
+ goto set_dest;
+ break;
+
+ case bool_vector_subsetp:
+ for (; i < nr_words; i++)
+ if (adata[i] &~ bdata[i])
+ return Qnil;
+ return Qt;
+
+ case bool_vector_union:
+ for (; i < nr_words; i++)
+ if (destdata[i] != (adata[i] | bdata[i]))
+ goto set_dest;
+ break;
+
+ case bool_vector_intersection:
+ for (; i < nr_words; i++)
+ if (destdata[i] != (adata[i] & bdata[i]))
+ goto set_dest;
+ break;
+
+ case bool_vector_set_difference:
+ for (; i < nr_words; i++)
+ if (destdata[i] != (adata[i] &~ bdata[i]))
+ goto set_dest;
+ break;
+ }
+
+ return Qnil;
+ }
+
+ set_dest:
+ switch (op)
+ {
+ case bool_vector_exclusive_or:
+ for (; i < nr_words; i++)
+ destdata[i] = adata[i] ^ bdata[i];
+ break;
+
+ case bool_vector_union:
+ for (; i < nr_words; i++)
+ destdata[i] = adata[i] | bdata[i];
+ break;
+
+ case bool_vector_intersection:
+ for (; i < nr_words; i++)
+ destdata[i] = adata[i] & bdata[i];
+ break;
+
+ case bool_vector_set_difference:
+ for (; i < nr_words; i++)
+ destdata[i] = adata[i] &~ bdata[i];
+ break;
+
+ default:
+ eassume (0);
+ }
+
+ return dest;
+}
+
+/* PRECONDITION must be true. Return VALUE. This odd construction
+ works around a bogus GCC diagnostic "shift count >= width of type". */
+
+static int
+pre_value (bool precondition, int value)
+{
+ eassume (precondition);
+ return precondition ? value : 0;
+}
+
+/* Compute the number of trailing zero bits in val. If val is zero,
+ return the number of bits in val. */
+static int
+count_trailing_zero_bits (bits_word val)
+{
+ if (BITS_WORD_MAX == UINT_MAX)
+ return count_trailing_zeros (val);
+ if (BITS_WORD_MAX == ULONG_MAX)
+ return count_trailing_zeros_l (val);
+ if (BITS_WORD_MAX == ULL_MAX)
+ return count_trailing_zeros_ll (val);
+
+ /* The rest of this code is for the unlikely platform where bits_word differs
+ in width from unsigned int, unsigned long, and unsigned long long. */
+ val |= ~ BITS_WORD_MAX;
+ if (BITS_WORD_MAX <= UINT_MAX)
+ return count_trailing_zeros (val);
+ if (BITS_WORD_MAX <= ULONG_MAX)
+ return count_trailing_zeros_l (val);
+ else
+ {
+ int count;
+ for (count = 0;
+ count < BITS_PER_BITS_WORD - BITS_PER_ULL;
+ count += BITS_PER_ULL)
+ {
+ if (val & ULL_MAX)
+ return count + count_trailing_zeros_ll (val);
+ val = shift_right_ull (val);
+ }
+
+ if (BITS_PER_BITS_WORD % BITS_PER_ULL != 0
+ && BITS_WORD_MAX == (bits_word) -1)
+ val |= (bits_word) 1 << pre_value (ULONG_MAX < BITS_WORD_MAX,
+ BITS_PER_BITS_WORD % BITS_PER_ULL);
+ return count + count_trailing_zeros_ll (val);
+ }
+}
+
+static bits_word
+bits_word_to_host_endian (bits_word val)
+{
+#ifndef WORDS_BIGENDIAN
+ return val;
+#else
+ if (BITS_WORD_MAX >> 31 == 1)
+ return bswap_32 (val);
+# if HAVE_UNSIGNED_LONG_LONG
+ if (BITS_WORD_MAX >> 31 >> 31 >> 1 == 1)
+ return bswap_64 (val);
+# endif
+ {
+ int i;
+ bits_word r = 0;
+ for (i = 0; i < sizeof val; i++)
+ {
+ r = ((r << 1 << (CHAR_BIT - 1))
+ | (val & ((1u << 1 << (CHAR_BIT - 1)) - 1)));
+ val = val >> 1 >> (CHAR_BIT - 1);
+ }
+ return r;
+ }
+#endif
+}
+
+DEFUN ("bool-vector-exclusive-or", Fbool_vector_exclusive_or,
+ Sbool_vector_exclusive_or, 2, 3, 0,
+ doc: /* Return A ^ B, bitwise exclusive or.
+If optional third argument C is given, store result into C.
+A, B, and C must be bool vectors of the same length.
+Return the destination vector if it changed or nil otherwise. */)
+ (Lisp_Object a, Lisp_Object b, Lisp_Object c)
+{
+ return bool_vector_binop_driver (a, b, c, bool_vector_exclusive_or);
+}
+
+DEFUN ("bool-vector-union", Fbool_vector_union,
+ Sbool_vector_union, 2, 3, 0,
+ doc: /* Return A | B, bitwise or.
+If optional third argument C is given, store result into C.
+A, B, and C must be bool vectors of the same length.
+Return the destination vector if it changed or nil otherwise. */)
+ (Lisp_Object a, Lisp_Object b, Lisp_Object c)
+{
+ return bool_vector_binop_driver (a, b, c, bool_vector_union);
+}
+
+DEFUN ("bool-vector-intersection", Fbool_vector_intersection,
+ Sbool_vector_intersection, 2, 3, 0,
+ doc: /* Return A & B, bitwise and.
+If optional third argument C is given, store result into C.
+A, B, and C must be bool vectors of the same length.
+Return the destination vector if it changed or nil otherwise. */)
+ (Lisp_Object a, Lisp_Object b, Lisp_Object c)
+{
+ return bool_vector_binop_driver (a, b, c, bool_vector_intersection);
+}
+
+DEFUN ("bool-vector-set-difference", Fbool_vector_set_difference,
+ Sbool_vector_set_difference, 2, 3, 0,
+ doc: /* Return A &~ B, set difference.
+If optional third argument C is given, store result into C.
+A, B, and C must be bool vectors of the same length.
+Return the destination vector if it changed or nil otherwise. */)
+ (Lisp_Object a, Lisp_Object b, Lisp_Object c)
+{
+ return bool_vector_binop_driver (a, b, c, bool_vector_set_difference);
+}
+
+DEFUN ("bool-vector-subsetp", Fbool_vector_subsetp,
+ Sbool_vector_subsetp, 2, 2, 0,
+ doc: /* Return t if every t value in A is also t in B, nil otherwise.
+A and B must be bool vectors of the same length. */)
+ (Lisp_Object a, Lisp_Object b)
+{
+ return bool_vector_binop_driver (a, b, b, bool_vector_subsetp);
+}
+
+DEFUN ("bool-vector-not", Fbool_vector_not,
+ Sbool_vector_not, 1, 2, 0,
+ doc: /* Compute ~A, set complement.
+If optional second argument B is given, store result into B.
+A and B must be bool vectors of the same length.
+Return the destination vector. */)
+ (Lisp_Object a, Lisp_Object b)
+{
+ EMACS_INT nr_bits;
+ bits_word *bdata, *adata;
+ ptrdiff_t i;
+
+ CHECK_BOOL_VECTOR (a);
+ nr_bits = bool_vector_size (a);
+
+ if (NILP (b))
+ b = make_uninit_bool_vector (nr_bits);
+ else
+ {
+ CHECK_BOOL_VECTOR (b);
+ if (bool_vector_size (b) != nr_bits)
+ wrong_length_argument (a, b, Qnil);
+ }
+
+ bdata = bool_vector_data (b);
+ adata = bool_vector_data (a);
+
+ for (i = 0; i < nr_bits / BITS_PER_BITS_WORD; i++)
+ bdata[i] = BITS_WORD_MAX & ~adata[i];
+
+ if (nr_bits % BITS_PER_BITS_WORD)
+ {
+ bits_word mword = bits_word_to_host_endian (adata[i]);
+ mword = ~mword;
+ mword &= bool_vector_spare_mask (nr_bits);
+ bdata[i] = bits_word_to_host_endian (mword);
+ }
+
+ return b;
+}
+
+DEFUN ("bool-vector-count-population", Fbool_vector_count_population,
+ Sbool_vector_count_population, 1, 1, 0,
+ doc: /* Count how many elements in A are t.
+A is a bool vector. To count A's nil elements, subtract the return
+value from A's length. */)
+ (Lisp_Object a)
+{
+ EMACS_INT count;
+ EMACS_INT nr_bits;
+ bits_word *adata;
+ ptrdiff_t i, nwords;
+
+ CHECK_BOOL_VECTOR (a);
+
+ nr_bits = bool_vector_size (a);
+ nwords = bool_vector_words (nr_bits);
+ count = 0;
+ adata = bool_vector_data (a);
+
+ for (i = 0; i < nwords; i++)
+ count += count_one_bits_word (adata[i]);
+
+ return make_number (count);
+}
+
+DEFUN ("bool-vector-count-consecutive", Fbool_vector_count_consecutive,
+ Sbool_vector_count_consecutive, 3, 3, 0,
+ doc: /* Count how many consecutive elements in A equal B starting at I.
+A is a bool vector, B is t or nil, and I is an index into A. */)
+ (Lisp_Object a, Lisp_Object b, Lisp_Object i)
+{
+ EMACS_INT count;
+ EMACS_INT nr_bits;
+ int offset;
+ bits_word *adata;
+ bits_word twiddle;
+ bits_word mword; /* Machine word. */
+ ptrdiff_t pos, pos0;
+ ptrdiff_t nr_words;
+
+ CHECK_BOOL_VECTOR (a);
+ CHECK_NATNUM (i);
+
+ nr_bits = bool_vector_size (a);
+ if (XFASTINT (i) > nr_bits) /* Allow one past the end for convenience */
+ args_out_of_range (a, i);
+
+ adata = bool_vector_data (a);
+ nr_words = bool_vector_words (nr_bits);
+ pos = XFASTINT (i) / BITS_PER_BITS_WORD;
+ offset = XFASTINT (i) % BITS_PER_BITS_WORD;
+ count = 0;
+
+ /* By XORing with twiddle, we transform the problem of "count
+ consecutive equal values" into "count the zero bits". The latter
+ operation usually has hardware support. */
+ twiddle = NILP (b) ? 0 : BITS_WORD_MAX;
+
+ /* Scan the remainder of the mword at the current offset. */
+ if (pos < nr_words && offset != 0)
+ {
+ mword = bits_word_to_host_endian (adata[pos]);
+ mword ^= twiddle;
+ mword >>= offset;
+
+ /* Do not count the pad bits. */
+ mword |= (bits_word) 1 << (BITS_PER_BITS_WORD - offset);
+
+ count = count_trailing_zero_bits (mword);
+ pos++;
+ if (count + offset < BITS_PER_BITS_WORD)
+ return make_number (count);
+ }
+
+ /* Scan whole words until we either reach the end of the vector or
+ find an mword that doesn't completely match. twiddle is
+ endian-independent. */
+ pos0 = pos;
+ while (pos < nr_words && adata[pos] == twiddle)
+ pos++;
+ count += (pos - pos0) * BITS_PER_BITS_WORD;
+
+ if (pos < nr_words)
+ {
+ /* If we stopped because of a mismatch, see how many bits match
+ in the current mword. */
+ mword = bits_word_to_host_endian (adata[pos]);
+ mword ^= twiddle;
+ count += count_trailing_zero_bits (mword);
+ }
+ else if (nr_bits % BITS_PER_BITS_WORD != 0)
+ {
+ /* If we hit the end, we might have overshot our count. Reduce
+ the total by the number of spare bits at the end of the
+ vector. */
+ count -= BITS_PER_BITS_WORD - nr_bits % BITS_PER_BITS_WORD;
+ }
+
+ return make_number (count);
+}
\f
void
{
Lisp_Object error_tail, arith_tail;
+#include "data.x"
+
DEFSYM (Qquote, "quote");
DEFSYM (Qlambda, "lambda");
DEFSYM (Qsubr, "subr");
DEFSYM (Qerror, "error");
DEFSYM (Quser_error, "user-error");
DEFSYM (Qquit, "quit");
+ DEFSYM (Qwrong_length_argument, "wrong-length-argument");
DEFSYM (Qwrong_type_argument, "wrong-type-argument");
DEFSYM (Qargs_out_of_range, "args-out-of-range");
DEFSYM (Qvoid_function, "void-function");
DEFSYM (Qsequencep, "sequencep");
DEFSYM (Qbufferp, "bufferp");
DEFSYM (Qvectorp, "vectorp");
+ DEFSYM (Qbool_vector_p, "bool-vector-p");
DEFSYM (Qchar_or_string_p, "char-or-string-p");
DEFSYM (Qmarkerp, "markerp");
DEFSYM (Qbuffer_or_string_p, "buffer-or-string-p");
PUT_ERROR (Qquit, Qnil, "Quit");
PUT_ERROR (Quser_error, error_tail, "");
+ PUT_ERROR (Qwrong_length_argument, error_tail, "Wrong length argument");
PUT_ERROR (Qwrong_type_argument, error_tail, "Wrong type argument");
PUT_ERROR (Qargs_out_of_range, error_tail, "Args out of range");
PUT_ERROR (Qvoid_function, error_tail,
DEFSYM (Qinteractive_form, "interactive-form");
DEFSYM (Qdefalias_fset_function, "defalias-fset-function");
- defsubr (&Sindirect_variable);
- defsubr (&Sinteractive_form);
- defsubr (&Seq);
- defsubr (&Snull);
- defsubr (&Stype_of);
- defsubr (&Slistp);
- defsubr (&Snlistp);
- defsubr (&Sconsp);
- defsubr (&Satom);
- defsubr (&Sintegerp);
- defsubr (&Sinteger_or_marker_p);
- defsubr (&Snumberp);
- defsubr (&Snumber_or_marker_p);
- defsubr (&Sfloatp);
- defsubr (&Snatnump);
- defsubr (&Ssymbolp);
- defsubr (&Skeywordp);
- defsubr (&Sstringp);
- defsubr (&Smultibyte_string_p);
- defsubr (&Svectorp);
- defsubr (&Schar_table_p);
- defsubr (&Svector_or_char_table_p);
- defsubr (&Sbool_vector_p);
- defsubr (&Sarrayp);
- defsubr (&Ssequencep);
- defsubr (&Sbufferp);
- defsubr (&Smarkerp);
- defsubr (&Ssubrp);
- defsubr (&Sbyte_code_function_p);
- defsubr (&Schar_or_string_p);
- defsubr (&Scar);
- defsubr (&Scdr);
- defsubr (&Scar_safe);
- defsubr (&Scdr_safe);
- defsubr (&Ssetcar);
- defsubr (&Ssetcdr);
- defsubr (&Ssymbol_function);
- defsubr (&Sindirect_function);
- defsubr (&Ssymbol_plist);
- defsubr (&Ssymbol_name);
- defsubr (&Smakunbound);
- defsubr (&Sfmakunbound);
- defsubr (&Sboundp);
- defsubr (&Sfboundp);
- defsubr (&Sfset);
- defsubr (&Sdefalias);
- defsubr (&Ssetplist);
- defsubr (&Ssymbol_value);
- defsubr (&Sset);
- defsubr (&Sdefault_boundp);
- defsubr (&Sdefault_value);
- defsubr (&Sset_default);
- defsubr (&Ssetq_default);
- defsubr (&Smake_variable_buffer_local);
- defsubr (&Smake_local_variable);
- defsubr (&Skill_local_variable);
- defsubr (&Smake_variable_frame_local);
- defsubr (&Slocal_variable_p);
- defsubr (&Slocal_variable_if_set_p);
- defsubr (&Svariable_binding_locus);
-#if 0 /* XXX Remove this. --lorentey */
- defsubr (&Sterminal_local_value);
- defsubr (&Sset_terminal_local_value);
-#endif
- defsubr (&Saref);
- defsubr (&Saset);
- defsubr (&Snumber_to_string);
- defsubr (&Sstring_to_number);
- defsubr (&Seqlsign);
- defsubr (&Slss);
- defsubr (&Sgtr);
- defsubr (&Sleq);
- defsubr (&Sgeq);
- defsubr (&Sneq);
- defsubr (&Szerop);
- defsubr (&Splus);
- defsubr (&Sminus);
- defsubr (&Stimes);
- defsubr (&Squo);
- defsubr (&Srem);
- defsubr (&Smod);
- defsubr (&Smax);
- defsubr (&Smin);
- defsubr (&Slogand);
- defsubr (&Slogior);
- defsubr (&Slogxor);
- defsubr (&Slsh);
- defsubr (&Sash);
- defsubr (&Sadd1);
- defsubr (&Ssub1);
- defsubr (&Slognot);
- defsubr (&Sbyteorder);
- defsubr (&Ssubr_arity);
- defsubr (&Ssubr_name);
-
- set_symbol_function (Qwholenump, XSYMBOL (Qnatnump)->function);
+ set_symbol_function (Qwholenump, SYMBOL_FUNCTION (Qnatnump));
DEFVAR_LISP ("most-positive-fixnum", Vmost_positive_fixnum,
doc: /* The largest value that is representable in a Lisp integer. */);
HCoop / bpt / emacs.git / blobdiff