64-bitness, based on

	To: perl-64bit@perl.org
	Message-ID: <yd8u30zyerl.fsf@hoshi.engr.sgi.com>
	Subject: Re: Configure problems/questions...

p4raw-id: //depot/cfgperl@2025

diff --git a/perl.h b/perl.h
index b5fea5c..7e9fd94 100644 (file)
--- a/perl.h
+++ b/perl.h
@@ -863,37 +863,66 @@ Free_t   Perl_free _((Malloc_t where));
 #   endif
 #endif
 
-#ifdef HAS_INT64_T
-#   define Quad_t int64_t
-#   define PERL_QUAD_IS_INT64_T
-#else
-#   if LONGSIZE == 8
-#       define Quad_t long
+#ifndef Quad_t
+#    if LONGSIZE == 8
+#       define Quad_t  long
 #       define PERL_QUAD_IS_LONG
-#   else
-#       ifdef USE_LONG_LONG /* See above note about LP32. --jhi */
-#           if defined(HAS_LONG_LONG) && LONGLONGSIZE == 8
-#               define Quad_t long long
-#                define PERL_QUAD_IS_LONG_LONG
-#           endif
-#       endif
-#       ifndef Quad_t
-#          if INTSIZE == 8
-#              define Quad_t int
-#               define PERL_QUAD_IS_INT
-#          endif
+#    endif
+#endif
+
+#ifndef Quad_t
+#    if INTSIZE == 8
+#       define Quad_t  int
+#       define PERL_QUAD_IS_INT
+#    endif
+#endif
+
+#ifndef Quad_t
+#    ifdef USE_LONG_LONG /* See above note about LP32. --jhi */
+#       if defined(HAS_LONG_LONG) && LONGLONGSIZE == 8
+#          define Quad_t  long long
+#           define PERL_QUAD_IS_LONG_LONG
 #       endif
-#   endif
+#    endif
+#endif
+
+#ifndef Quad_t
+#    ifdef HAS_INT64_T
+#        define Quad_t  int64_t
+#        define Uquad_t uint64_t
+#        define PERL_QUAD_IS_INT64_T
+#    endif
 #endif
 
 #ifdef Quad_t
 #   define HAS_QUAD
+#   ifndef Uquad_t
+    /* Note that if your Quad_t is a typedef you *must* have defined
+     * also Uquad_t yourself because 'unsigned type' is illegal. */
+#       define Uquad_t unsigned Quad_t
+#   endif
 #endif
 
-/* See above note on LP32 about the PTRSIZE test. --jhi */
-#if defined(HAS_QUAD) && (PTRSIZE > 4 || defined(USE_LONG_LONG))
-   typedef          Quad_t IV;
-   typedef unsigned Quad_t UV;
+#if defined(USE_64_BITS) && defined(HAS_QUAD)
+#  ifdef PERL_QUAD_IS_LONG                     /* LP64 */
+   typedef          long               IV;
+   typedef         unsigned long      UV;
+#  else
+#      ifdef PERL_QUAD_IS_INT                  /* ILP64 */
+   typedef          int                IV;
+   typedef         unsigned int       UV;
+#      else
+#          ifdef PERL_QUAD_IS_LONG_LONG                /* LL64 */
+   typedef          long long          IV;
+   typedef         unsigned long long UV;
+#          else
+#              ifdef PERL_QUAD_IS_INT64_T      /* C9X */
+   typedef          int64_t            IV;
+   typedef         uint64_t           UV;
+#              endif
+#          endif
+#      endif
+#  endif     
 #  if defined(PERL_QUAD_IS_INT64_T) && defined(INT64_MAX)
 #    define IV_MAX INT64_MAX
 #    define IV_MIN INT64_MIN
@@ -906,8 +935,8 @@ Free_t   Perl_free _((Malloc_t where));
 #    define UV_MIN PERL_UQUAD_MIN
 #  endif
 #else
-   typedef          long IV;
-   typedef unsigned long UV;
+   typedef          long               IV;
+   typedef         unsigned long      UV;
 #  if defined(INT32_MAX) && LONGSIZE == 4
 #    define IV_MAX INT32_MAX
 #    define IV_MIN INT32_MIN
@@ -1165,10 +1194,14 @@ typedef union any ANY;
 
 #include "handy.h"
 
+/* Some day when we have more 64-bit experience under our belts we may
+ * be able to merge some of the USE_64_BIT_{FILES,OFFSETS,STDIO,DBM}. At
+ * the moment (Oct 1998), though, keep them separate. --jhi
+ */
 #ifdef USE_64_BITS
 #   ifdef USE_64_BIT_FILES
-#       ifndef USE_64_BIT_IO
-#          define USE_64_BIT_IO
+#       ifndef USE_64_BIT_OFFSETS
+#          define USE_64_BIT_OFFSETS
 #       endif
 #       ifndef USE_64_BIT_STDIO
 #           define USE_64_BIT_STDIO
@@ -1177,7 +1210,8 @@ typedef union any ANY;
 #           define USE_64_BIT_DBM
 #       endif
 #   endif
-#   ifdef USE_64_BIT_IO
+/* Mention LSEEKSIZE here to get it included in %Config. */
+#   ifdef USE_64_BIT_OFFSETS
 #       ifdef HAS_FSTAT64
 #           define fstat fstat64
 #       endif