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Diff for /embedaddon/confuse/m4/longlong.m4 between versions 1.1.1.1 and 1.1.1.2

version 1.1.1.1, 2017/01/24 14:48:55 version 1.1.1.2, 2021/03/17 00:49:17
Line 1 Line 1
# longlong.m4 serial 8# longlong.m4 serial 17
dnl Copyright (C) 1999-2006 Free Software Foundation, Inc.dnl Copyright (C) 1999-2007, 2009-2013 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation  dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,  dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.  dnl with or without modifications, as long as this notice is preserved.
Line 7  dnl with or without modifications, as long as this not Line 7  dnl with or without modifications, as long as this not
 dnl From Paul Eggert.  dnl From Paul Eggert.
   
 # Define HAVE_LONG_LONG_INT if 'long long int' works.  # Define HAVE_LONG_LONG_INT if 'long long int' works.
# This fixes a bug in Autoconf 2.60, but can be removed once we# This fixes a bug in Autoconf 2.61, and can be faster
# assume 2.61 everywhere.# than what's in Autoconf 2.62 through 2.68.
   
 # Note: If the type 'long long int' exists but is only 32 bits large  # Note: If the type 'long long int' exists but is only 32 bits large
# (as on some very old compilers), AC_TYPE_LONG_LONG_INT will not be# (as on some very old compilers), HAVE_LONG_LONG_INT will not be
 # defined. In this case you can treat 'long long int' like 'long int'.  # defined. In this case you can treat 'long long int' like 'long int'.
   
 AC_DEFUN([AC_TYPE_LONG_LONG_INT],  AC_DEFUN([AC_TYPE_LONG_LONG_INT],
 [  [
     AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT])
   AC_CACHE_CHECK([for long long int], [ac_cv_type_long_long_int],    AC_CACHE_CHECK([for long long int], [ac_cv_type_long_long_int],
    [AC_LINK_IFELSE(     [ac_cv_type_long_long_int=yes
       [AC_LANG_PROGRAM(      if test "x${ac_cv_prog_cc_c99-no}" = xno; then
          [[long long int ll = 9223372036854775807ll;        ac_cv_type_long_long_int=$ac_cv_type_unsigned_long_long_int
            long long int nll = -9223372036854775807LL;        if test $ac_cv_type_long_long_int = yes; then
            typedef int a[((-9223372036854775807LL < 0          dnl Catch a bug in Tandem NonStop Kernel (OSS) cc -O circa 2004.
                            && 0 < 9223372036854775807ll)          dnl If cross compiling, assume the bug is not important, since
                           ? 1 : -1)];          dnl nobody cross compiles for this platform as far as we know.
            int i = 63;]],          AC_RUN_IFELSE(
          [[long long int llmax = 9223372036854775807ll;            [AC_LANG_PROGRAM(
            return ((ll << 63) | (ll >> 63) | (ll < i) | (ll > i)               [[@%:@include <limits.h>
                    | (llmax / ll) | (llmax % ll));]])],                 @%:@ifndef LLONG_MAX
       [ac_cv_type_long_long_int=yes],                 @%:@ define HALF \
       [ac_cv_type_long_long_int=no])])                          (1LL << (sizeof (long long int) * CHAR_BIT - 2))
                  @%:@ define LLONG_MAX (HALF - 1 + HALF)
                  @%:@endif]],
                [[long long int n = 1;
                  int i;
                  for (i = 0; ; i++)
                    {
                      long long int m = n << i;
                      if (m >> i != n)
                        return 1;
                      if (LLONG_MAX / 2 < m)
                        break;
                    }
                  return 0;]])],
             [],
             [ac_cv_type_long_long_int=no],
             [:])
         fi
       fi])
   if test $ac_cv_type_long_long_int = yes; then    if test $ac_cv_type_long_long_int = yes; then
    AC_DEFINE([HAVE_LONG_LONG_INT], 1,    AC_DEFINE([HAVE_LONG_LONG_INT], [1],
      [Define to 1 if the system has the type `long long int'.])      [Define to 1 if the system has the type 'long long int'.])
   fi    fi
 ])  ])
   
# This macro is obsolescent and should go away soon.# Define HAVE_UNSIGNED_LONG_LONG_INT if 'unsigned long long int' works.
AC_DEFUN([gl_AC_TYPE_LONG_LONG],# This fixes a bug in Autoconf 2.61, and can be faster
 # than what's in Autoconf 2.62 through 2.68.
 
 # Note: If the type 'unsigned long long int' exists but is only 32 bits
 # large (as on some very old compilers), AC_TYPE_UNSIGNED_LONG_LONG_INT
 # will not be defined. In this case you can treat 'unsigned long long int'
 # like 'unsigned long int'.
 
 AC_DEFUN([AC_TYPE_UNSIGNED_LONG_LONG_INT],
 [  [
  AC_REQUIRE([AC_TYPE_LONG_LONG_INT])  AC_CACHE_CHECK([for unsigned long long int],
  ac_cv_type_long_long=$ac_cv_type_long_long_int    [ac_cv_type_unsigned_long_long_int],
  if test $ac_cv_type_long_long = yes; then    [ac_cv_type_unsigned_long_long_int=yes
    AC_DEFINE(HAVE_LONG_LONG, 1,     if test "x${ac_cv_prog_cc_c99-no}" = xno; then
      [Define if you have the 'long long' type.])       AC_LINK_IFELSE(
          [_AC_TYPE_LONG_LONG_SNIPPET],
          [],
          [ac_cv_type_unsigned_long_long_int=no])
      fi])
   if test $ac_cv_type_unsigned_long_long_int = yes; then
     AC_DEFINE([HAVE_UNSIGNED_LONG_LONG_INT], [1],
       [Define to 1 if the system has the type 'unsigned long long int'.])
   fi    fi
   ])
   
   # Expands to a C program that can be used to test for simultaneous support
   # of 'long long' and 'unsigned long long'. We don't want to say that
   # 'long long' is available if 'unsigned long long' is not, or vice versa,
   # because too many programs rely on the symmetry between signed and unsigned
   # integer types (excluding 'bool').
   AC_DEFUN([_AC_TYPE_LONG_LONG_SNIPPET],
   [
     AC_LANG_PROGRAM(
       [[/* For now, do not test the preprocessor; as of 2007 there are too many
            implementations with broken preprocessors.  Perhaps this can
            be revisited in 2012.  In the meantime, code should not expect
            #if to work with literals wider than 32 bits.  */
         /* Test literals.  */
         long long int ll = 9223372036854775807ll;
         long long int nll = -9223372036854775807LL;
         unsigned long long int ull = 18446744073709551615ULL;
         /* Test constant expressions.   */
         typedef int a[((-9223372036854775807LL < 0 && 0 < 9223372036854775807ll)
                        ? 1 : -1)];
         typedef int b[(18446744073709551615ULL <= (unsigned long long int) -1
                        ? 1 : -1)];
         int i = 63;]],
       [[/* Test availability of runtime routines for shift and division.  */
         long long int llmax = 9223372036854775807ll;
         unsigned long long int ullmax = 18446744073709551615ull;
         return ((ll << 63) | (ll >> 63) | (ll < i) | (ll > i)
                 | (llmax / ll) | (llmax % ll)
                 | (ull << 63) | (ull >> 63) | (ull << i) | (ull >> i)
                 | (ullmax / ull) | (ullmax % ull));]])
 ])  ])
Removed from v.1.1.1.1  
changed lines
  Added in v.1.1.1.2

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