Algorithm-MedianSelect-XS

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Changes  view on Meta::CPAN

 - Merged development version to stable.

0.21_01  2021-04-05  <schubiger@cpan.org>

 - Refactor {quick,bubble}_sort().

 - Allocate space on heap instead of stack for numbers.

 - Define croak() wrappers.

 - Adjust fatal error messages.

 - Use Perl's TRUE/FALSE. [rt #76474 - Slaven Rezić]

 - Reword documentation.

 - Update broken license link.

 - Add metadata repository link.

 - Do no longer recommend Test::Pod and Test::Pod::Coverage.

XS.xs  view on Meta::CPAN

#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

#include "ppport.h"

#define croak_msg(msg) \
    croak ("median(): %s", msg)
#define croak_msg_internal(msg) \
    croak ("median(): internal error: %s", msg)

enum { LESS_THAN = -1, EQUAL_TO, GREATER_THAN };

static int
quick_sort (const void *arg1, const void *arg2)
{
    const long num1 = *(long *)arg1, num2 = *(long *)arg2;
    if (num1 < num2)
      return LESS_THAN;
    else if (num1 == num2)

ppport.h  view on Meta::CPAN


  --version                   show version

  --patch=file                write one patch file with changes
  --copy=suffix               write changed copies with suffix
  --diff=program              use diff program and options

  --compat-version=version    provide compatibility with Perl version
  --cplusplus                 accept C++ comments

  --quiet                     don't output anything except fatal errors
  --nodiag                    don't show diagnostics
  --nohints                   don't show hints
  --nochanges                 don't suggest changes
  --nofilter                  don't filter input files

  --strip                     strip all script and doc functionality from
                              ppport.h

  --list-provided             list provided API
  --list-unsupported          list unsupported API

ppport.h  view on Meta::CPAN


=head2 --cplusplus

Usually, F<ppport.h> will detect C++ style comments and
replace them with C style comments for portability reasons.
Using this option instructs F<ppport.h> to leave C++
comments untouched.

=head2 --quiet

Be quiet. Don't print anything except fatal errors.

=head2 --nodiag

Don't output any diagnostic messages. Only portability
alerts will be printed.

=head2 --nohints

Don't output any hints. Hints often contain useful portability
notes. Warnings will still be displayed.

ppport.h  view on Meta::CPAN

PUSHmortal|5.009002||p
PUSHn|||
PUSHp|||
PUSHs|||
PUSHu|5.004000||p
PUTBACK|||
PerlIO_clearerr||5.007003|
PerlIO_close||5.007003|
PerlIO_context_layers||5.009004|
PerlIO_eof||5.007003|
PerlIO_error||5.007003|
PerlIO_fileno||5.007003|
PerlIO_fill||5.007003|
PerlIO_flush||5.007003|
PerlIO_get_base||5.007003|
PerlIO_get_bufsiz||5.007003|
PerlIO_get_cnt||5.007003|
PerlIO_get_ptr||5.007003|
PerlIO_read||5.007003|
PerlIO_seek||5.007003|
PerlIO_set_cnt||5.007003|

ppport.h  view on Meta::CPAN

ptr_table_free||5.009005|
ptr_table_new||5.009005|
ptr_table_split||5.009005|
ptr_table_store||5.009005|
push_scope|||
put_byte|||
pv_display||5.006000|
pv_escape||5.009004|
pv_pretty||5.009004|
pv_uni_display||5.007003|
qerror|||
qsortsvu|||
re_compile||5.009005|
re_croak2|||
re_dup|||
re_intuit_start||5.009005|
re_intuit_string||5.006000|
readpipe_override|||
realloc||5.007002|n
reentrant_free|||
reentrant_init|||

ppport.h  view on Meta::CPAN

write_no_mem|||
write_to_stderr|||
xmldump_all|||
xmldump_attr|||
xmldump_eval|||
xmldump_form|||
xmldump_indent|||v
xmldump_packsubs|||
xmldump_sub|||
xmldump_vindent|||
yyerror|||
yylex|||
yyparse|||
yywarn|||
);

if (exists $opt{'list-unsupported'}) {
  my $f;
  for $f (sort { lc $a cmp lc $b } keys %API) {
    next unless $API{$f}{todo};
    print "$f ", '.'x(40-length($f)), " ", format_version($API{$f}{todo}), "\n";

ppport.h  view on Meta::CPAN

  }

  my $s = $warnings != 1 ? 's' : '';
  my $warn = $warnings ? " ($warnings warning$s)" : '';
  info("Analysis completed$warn");

  if ($file{changes}) {
    if (exists $opt{copy}) {
      my $newfile = "$filename$opt{copy}";
      if (-e $newfile) {
        error("'$newfile' already exists, refusing to write copy of '$filename'");
      }
      else {
        local *F;
        if (open F, ">$newfile") {
          info("Writing copy of '$filename' with changes to '$newfile'");
          print F $c;
          close F;
        }
        else {
          error("Cannot open '$newfile' for writing: $!");
        }
      }
    }
    elsif (exists $opt{patch} || $opt{changes}) {
      if (exists $opt{patch}) {
        unless ($patch_opened) {
          if (open PATCH, ">$opt{patch}") {
            $patch_opened = 1;
          }
          else {
            error("Cannot open '$opt{patch}' for writing: $!");
            delete $opt{patch};
            $opt{changes} = 1;
            goto fallback;
          }
        }
        mydiff(\*PATCH, $filename, $c);
      }
      else {
fallback:
        info("Suggested changes:");

ppport.h  view on Meta::CPAN


  if (!defined $diff) {
    $diff = run_diff('diff -u', $file, $str);
  }

  if (!defined $diff) {
    $diff = run_diff('diff', $file, $str);
  }

  if (!defined $diff) {
    error("Cannot generate a diff. Please install Text::Diff or use --copy.");
    return;
  }

  print F $diff;
}

sub run_diff
{
  my($prog, $file, $str) = @_;
  my $tmp = 'dppptemp';

ppport.h  view on Meta::CPAN

        $diff .= $_;
      }
      close F;
      unlink $tmp;
      return $diff;
    }

    unlink $tmp;
  }
  else {
    error("Cannot open '$tmp' for writing: $!");
  }

  return undef;
}

sub rec_depend
{
  my($func, $seen) = @_;
  return () unless exists $depends{$func};
  $seen = {%{$seen||{}}};

ppport.h  view on Meta::CPAN

  $opt{quiet} and return;
  $opt{diag} and print @_, "\n";
}

sub warning
{
  $opt{quiet} and return;
  print "*** ", @_, "\n";
}

sub error
{
  print "*** ERROR: ", @_, "\n";
}

my %given_hints;
my %given_warnings;
sub hint
{
  $opt{quiet} and return;
  my $func = shift;

ppport.h  view on Meta::CPAN

#  endif
#endif

#define _dpppDEC2BCD(dec) ((((dec)/100)<<8)|((((dec)%100)/10)<<4)|((dec)%10))
#define PERL_BCDVERSION ((_dpppDEC2BCD(PERL_REVISION)<<24)|(_dpppDEC2BCD(PERL_VERSION)<<12)|_dpppDEC2BCD(PERL_SUBVERSION))

/* It is very unlikely that anyone will try to use this with Perl 6
   (or greater), but who knows.
 */
#if PERL_REVISION != 5
#  error ppport.h only works with Perl version 5
#endif /* PERL_REVISION != 5 */

#ifdef I_LIMITS
#  include <limits.h>
#endif

#ifndef PERL_UCHAR_MIN
#  define PERL_UCHAR_MIN ((unsigned char)0)
#endif

ppport.h  view on Meta::CPAN

#ifndef PERL_LOADMOD_IMPORT_OPS
#  define PERL_LOADMOD_IMPORT_OPS        0x4
#endif

/* Replace: 0 */

/* Replace perl_eval_pv with eval_pv */

#ifndef eval_pv
#if defined(NEED_eval_pv)
static SV* DPPP_(my_eval_pv)(char *p, I32 croak_on_error);
static
#else
extern SV* DPPP_(my_eval_pv)(char *p, I32 croak_on_error);
#endif

#ifdef eval_pv
#  undef eval_pv
#endif
#define eval_pv(a,b) DPPP_(my_eval_pv)(aTHX_ a,b)
#define Perl_eval_pv DPPP_(my_eval_pv)

#if defined(NEED_eval_pv) || defined(NEED_eval_pv_GLOBAL)

SV*
DPPP_(my_eval_pv)(char *p, I32 croak_on_error)
{
    dSP;
    SV* sv = newSVpv(p, 0);

    PUSHMARK(sp);
    eval_sv(sv, G_SCALAR);
    SvREFCNT_dec(sv);

    SPAGAIN;
    sv = POPs;
    PUTBACK;

    if (croak_on_error && SvTRUE(GvSV(errgv)))
	croak(SvPVx(GvSV(errgv), na));

    return sv;
}

#endif
#endif

#ifndef vload_module
#if defined(NEED_vload_module)



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