* lib/alloca.c: Update, from fileutils.

diff --git a/ChangeLog b/ChangeLog
index ed5eae41a76053ad11033a4ad49537552667d291..c9937f641ed6161df985f51cba4b16e5667c51dc 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2001-11-23  Akim Demaille  <akim@epita.fr>
+
+       * lib/alloca.c: Update, from fileutils.
+

 2001-11-23  Akim Demaille  <akim@epita.fr>
 
        * lib/Makefile.am (libbison_a_LIBADD): Add @ALLOCA@.
 2001-11-23  Akim Demaille  <akim@epita.fr>
 
        * lib/Makefile.am (libbison_a_LIBADD): Add @ALLOCA@.

diff --git a/lib/alloca.c b/lib/alloca.c
index 8f98b73dbb90788101e7e83c2909ab60de28d719..6ad425a4cd6cdd2224c6f0aad359da5e32f9ec61 100644 (file)
--- a/lib/alloca.c
+++ b/lib/alloca.c
@@ -22,18 +22,18 @@
    your main control loop, etc. to force garbage collection.  */
 
 #ifdef HAVE_CONFIG_H
    your main control loop, etc. to force garbage collection.  */
 
 #ifdef HAVE_CONFIG_H

-#include <config.h>
+# include <config.h>

 #endif
 
 #endif
 

-#ifdef HAVE_STRING_H
-#include <string.h>
+#if HAVE_STRING_H
+# include <string.h>

 #endif
 #endif

-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
+#if HAVE_STDLIB_H
+# include <stdlib.h>

 #endif
 
 #ifdef emacs
 #endif
 
 #ifdef emacs

-#include "blockinput.h"
+# include "blockinput.h"

 #endif
 
 /* If compiling with GCC 2, this file's not needed.  */
 #endif
 
 /* If compiling with GCC 2, this file's not needed.  */


@@ -41,41 +41,41 @@
 
 /* If someone has defined alloca as a macro,
    there must be some other way alloca is supposed to work.  */
 
 /* If someone has defined alloca as a macro,
    there must be some other way alloca is supposed to work.  */

-#ifndef alloca
+# ifndef alloca

 
 

-#ifdef emacs
-#ifdef static
+#  ifdef emacs
+#   ifdef static

 /* actually, only want this if static is defined as ""
    -- this is for usg, in which emacs must undefine static
    in order to make unexec workable
    */
 /* actually, only want this if static is defined as ""
    -- this is for usg, in which emacs must undefine static
    in order to make unexec workable
    */

-#ifndef STACK_DIRECTION
+#    ifndef STACK_DIRECTION

 you
 lose
 -- must know STACK_DIRECTION at compile-time
 you
 lose
 -- must know STACK_DIRECTION at compile-time

-#endif /* STACK_DIRECTION undefined */
-#endif /* static */
-#endif /* emacs */
+#    endif /* STACK_DIRECTION undefined */
+#   endif /* static */
+#  endif /* emacs */

 
 /* If your stack is a linked list of frames, you have to
    provide an "address metric" ADDRESS_FUNCTION macro.  */
 
 
 /* If your stack is a linked list of frames, you have to
    provide an "address metric" ADDRESS_FUNCTION macro.  */
 

-#if defined (CRAY) && defined (CRAY_STACKSEG_END)
+#  if defined (CRAY) && defined (CRAY_STACKSEG_END)

 long i00afunc ();
 long i00afunc ();

-#define ADDRESS_FUNCTION(arg) (char *) i00afunc (&(arg))
-#else
-#define ADDRESS_FUNCTION(arg) &(arg)
-#endif
+#   define ADDRESS_FUNCTION(arg) (char *) i00afunc (&(arg))
+#  else
+#   define ADDRESS_FUNCTION(arg) &(arg)
+#  endif

 
 

-#if __STDC__
+#  if __STDC__

 typedef void *pointer;
 typedef void *pointer;

-#else
+#  else

 typedef char *pointer;
 typedef char *pointer;

-#endif
+#  endif

 
 

-#ifndef NULL
-#define        NULL    0
-#endif
+#  ifndef NULL
+#   define NULL 0
+#  endif

 
 /* Different portions of Emacs need to call different versions of
    malloc.  The Emacs executable needs alloca to call xmalloc, because
 
 /* Different portions of Emacs need to call different versions of
    malloc.  The Emacs executable needs alloca to call xmalloc, because


@@ -83,13 +83,14 @@ typedef char *pointer;
    hand, the utilities in lib-src need alloca to call malloc; some of
    them are very simple, and don't have an xmalloc routine.
 
    hand, the utilities in lib-src need alloca to call malloc; some of
    them are very simple, and don't have an xmalloc routine.
 

-   Non-Emacs programs expect this to call use xmalloc.
+   Non-Emacs programs expect this to call xmalloc.

 
    Callers below should use malloc.  */
 
 
    Callers below should use malloc.  */
 

-#ifndef emacs
-#define malloc xmalloc
-#endif
+#  ifndef emacs
+#   undef malloc
+#   define malloc xmalloc
+#  endif

 extern pointer malloc ();
 
 /* Define STACK_DIRECTION if you know the direction of stack
 extern pointer malloc ();
 
 /* Define STACK_DIRECTION if you know the direction of stack


@@ -100,18 +101,18 @@ extern pointer malloc ();
    STACK_DIRECTION < 0 => grows toward lower addresses
    STACK_DIRECTION = 0 => direction of growth unknown  */
 
    STACK_DIRECTION < 0 => grows toward lower addresses
    STACK_DIRECTION = 0 => direction of growth unknown  */
 

-#ifndef STACK_DIRECTION
-#define        STACK_DIRECTION 0       /* Direction unknown.  */
-#endif
+#  ifndef STACK_DIRECTION
+#   define STACK_DIRECTION     0       /* Direction unknown.  */
+#  endif

 
 

-#if STACK_DIRECTION != 0
+#  if STACK_DIRECTION != 0

 
 

-#define        STACK_DIR       STACK_DIRECTION /* Known at compile-time.  */
+#   define STACK_DIR   STACK_DIRECTION /* Known at compile-time.  */

 
 

-#else /* STACK_DIRECTION == 0; need run-time code.  */
+#  else /* STACK_DIRECTION == 0; need run-time code.  */

 
 static int stack_dir;          /* 1 or -1 once known.  */
 
 static int stack_dir;          /* 1 or -1 once known.  */

-#define        STACK_DIR       stack_dir
+#   define STACK_DIR   stack_dir

 
 static void
 find_stack_direction ()
 
 static void
 find_stack_direction ()


@@ -135,7 +136,7 @@ find_stack_direction ()
     }
 }
 
     }
 }
 

-#endif /* STACK_DIRECTION == 0 */
+#  endif /* STACK_DIRECTION == 0 */

 
 /* An "alloca header" is used to:
    (a) chain together all alloca'ed blocks;
 
 /* An "alloca header" is used to:
    (a) chain together all alloca'ed blocks;


@@ -144,9 +145,9 @@ find_stack_direction ()
    It is very important that sizeof(header) agree with malloc
    alignment chunk size.  The following default should work okay.  */
 
    It is very important that sizeof(header) agree with malloc
    alignment chunk size.  The following default should work okay.  */
 

-#ifndef        ALIGN_SIZE
-#define        ALIGN_SIZE      sizeof(double)
-#endif
+#  ifndef      ALIGN_SIZE
+#   define ALIGN_SIZE  sizeof(double)
+#  endif

 
 typedef union hdr
 {
 
 typedef union hdr
 {


@@ -168,16 +169,15 @@ static header *last_alloca_header = NULL; /* -> last alloca header.  */
    implementations of C, for example under Gould's UTX/32.  */
 
 pointer
    implementations of C, for example under Gould's UTX/32.  */
 
 pointer

-alloca (size)
-     unsigned size;
+alloca (size_t size)

 {
   auto char probe;             /* Probes stack depth: */
   register char *depth = ADDRESS_FUNCTION (probe);
 
 {
   auto char probe;             /* Probes stack depth: */
   register char *depth = ADDRESS_FUNCTION (probe);
 

-#if STACK_DIRECTION == 0
+#  if STACK_DIRECTION == 0

   if (STACK_DIR == 0)          /* Unknown growth direction.  */
     find_stack_direction ();
   if (STACK_DIR == 0)          /* Unknown growth direction.  */
     find_stack_direction ();

-#endif
+#  endif

 
   /* Reclaim garbage, defined as all alloca'd storage that
      was allocated from deeper in the stack than currently.  */
 
   /* Reclaim garbage, defined as all alloca'd storage that
      was allocated from deeper in the stack than currently.  */


@@ -185,9 +185,9 @@ alloca (size)
   {
     register header *hp;       /* Traverses linked list.  */
 
   {
     register header *hp;       /* Traverses linked list.  */
 

-#ifdef emacs
+#  ifdef emacs

     BLOCK_INPUT;
     BLOCK_INPUT;

-#endif
+#  endif

 
     for (hp = last_alloca_header; hp != NULL;)
       if ((STACK_DIR > 0 && hp->h.deep > depth)
 
     for (hp = last_alloca_header; hp != NULL;)
       if ((STACK_DIR > 0 && hp->h.deep > depth)


@@ -204,9 +204,9 @@ alloca (size)
 
     last_alloca_header = hp;   /* -> last valid storage.  */
 
 
     last_alloca_header = hp;   /* -> last valid storage.  */
 

-#ifdef emacs
+#  ifdef emacs

     UNBLOCK_INPUT;
     UNBLOCK_INPUT;

-#endif
+#  endif

   }
 
   if (size == 0)
   }
 
   if (size == 0)


@@ -232,15 +232,15 @@ alloca (size)
   }
 }
 
   }
 }
 

-#if defined (CRAY) && defined (CRAY_STACKSEG_END)
+#  if defined (CRAY) && defined (CRAY_STACKSEG_END)

 
 

-#ifdef DEBUG_I00AFUNC
-#include <stdio.h>
-#endif
+#   ifdef DEBUG_I00AFUNC
+#    include <stdio.h>
+#   endif

 
 

-#ifndef CRAY_STACK
-#define CRAY_STACK
-#ifndef CRAY2
+#   ifndef CRAY_STACK
+#    define CRAY_STACK
+#    ifndef CRAY2

 /* Stack structures for CRAY-1, CRAY X-MP, and CRAY Y-MP */
 struct stack_control_header
   {
 /* Stack structures for CRAY-1, CRAY X-MP, and CRAY Y-MP */
 struct stack_control_header
   {


@@ -292,7 +292,7 @@ struct stack_segment_linkage
     long sss7;
   };
 
     long sss7;
   };
 

-#else /* CRAY2 */
+#    else /* CRAY2 */

 /* The following structure defines the vector of words
    returned by the STKSTAT library routine.  */
 struct stk_stat
 /* The following structure defines the vector of words
    returned by the STKSTAT library routine.  */
 struct stk_stat


@@ -345,10 +345,10 @@ struct stk_trailer
     long unknown14;
   };
 
     long unknown14;
   };
 

-#endif /* CRAY2 */
-#endif /* not CRAY_STACK */
+#    endif /* CRAY2 */
+#   endif /* not CRAY_STACK */

 
 

-#ifdef CRAY2
+#   ifdef CRAY2

 /* Determine a "stack measure" for an arbitrary ADDRESS.
    I doubt that "lint" will like this much.  */
 
 /* Determine a "stack measure" for an arbitrary ADDRESS.
    I doubt that "lint" will like this much.  */
 


@@ -419,7 +419,7 @@ i00afunc (long *address)
   return (result);
 }
 
   return (result);
 }
 

-#else /* not CRAY2 */
+#   else /* not CRAY2 */

 /* Stack address function for a CRAY-1, CRAY X-MP, or CRAY Y-MP.
    Determine the number of the cell within the stack,
    given the address of the cell.  The purpose of this
 /* Stack address function for a CRAY-1, CRAY X-MP, or CRAY Y-MP.
    Determine the number of the cell within the stack,
    given the address of the cell.  The purpose of this


@@ -464,9 +464,9 @@ i00afunc (long address)
 
   while (!(this_segment <= address && address <= stkl))
     {
 
   while (!(this_segment <= address && address <= stkl))
     {

-#ifdef DEBUG_I00AFUNC
+#    ifdef DEBUG_I00AFUNC

       fprintf (stderr, "%011o %011o %011o\n", this_segment, address, stkl);
       fprintf (stderr, "%011o %011o %011o\n", this_segment, address, stkl);

-#endif
+#    endif

       if (pseg == 0)
        break;
       stkl = stkl - pseg;
       if (pseg == 0)
        break;
       stkl = stkl - pseg;


@@ -485,9 +485,9 @@ i00afunc (long address)
 
   while (pseg != 0)
     {
 
   while (pseg != 0)
     {

-#ifdef DEBUG_I00AFUNC
+#    ifdef DEBUG_I00AFUNC

       fprintf (stderr, "%011o %011o\n", pseg, size);
       fprintf (stderr, "%011o %011o\n", pseg, size);

-#endif
+#    endif

       stkl = stkl - pseg;
       ssptr = (struct stack_segment_linkage *) stkl;
       size = ssptr->sssize;
       stkl = stkl - pseg;
       ssptr = (struct stack_segment_linkage *) stkl;
       size = ssptr->sssize;


@@ -497,8 +497,8 @@ i00afunc (long address)
   return (result);
 }
 
   return (result);
 }
 

-#endif /* not CRAY2 */
-#endif /* CRAY */
+#   endif /* not CRAY2 */
+#  endif /* CRAY */

 
 

-#endif /* no alloca */
+# endif /* no alloca */

 #endif /* not GCC version 2 */
 #endif /* not GCC version 2 */