[perl5.git] / t / bigmem / regexp.t

#!perl
BEGIN {
    chdir 't' if -d 't';
    @INC = "../lib";
    require './test.pl';
}

use Config qw(%Config);

$ENV{PERL_TEST_MEMORY} >= 2
    or skip_all("Need ~2Gb for this test");
$Config{ptrsize} >= 8
    or skip_all("Need 64-bit pointers for this test");

plan(6);

# [perl #116907]
# ${\2} to defeat constant folding, which in this case actually slows
# things down
my $x=" "x(${\2}**31) . "abcdefg";
ok $x =~ /./, 'match against long string succeeded';
is "$-[0]-$+[0]", '0-1', '@-/@+ after match against long string';

pos $x = 2**31-1;
my $result;
for(1..5) {
    $x =~ /./g;
    $result .= "$&-";
}
is $result," -a-b-c-d-", 'scalar //g hopping past the 2**31 threshold';
pos $x = 2**31+3;
$x =~ /./g;
is "$'", 'efg', q "$' after match against long string";
is "$-[0],$+[0]", '2147483651,2147483652',
   '@- and @+ after matches past 2**31';

# Substring optimisations
is $x =~ /(?:(?:.{32766}){32766}){2}(?:.{32766}){8}.{8}ef/, 1,
  'anchored substr past 2**31';
Commit	Line	Data
389ecb56 FC	1	#!perl
389ecb56 FC	2	BEGIN {
a817e89d	3	chdir 't' if -d 't';
9224f6d1	4	@INC = "../lib";
389ecb56 FC	5	require './test.pl';
	6	}
	7
	8	use Config qw(%Config);
	9
	10	$ENV{PERL_TEST_MEMORY} >= 2
	11	or skip_all("Need ~2Gb for this test");
	12	$Config{ptrsize} >= 8
	13	or skip_all("Need 64-bit pointers for this test");
	14
49f55535	15	plan(6);
389ecb56 FC	16
	17	# [perl #116907]
	18	# ${\2} to defeat constant folding, which in this case actually slows
	19	# things down
99a90e59	20	my $x=" "x(${\2}**31) . "abcdefg";
389ecb56 FC	21	ok $x =~ /./, 'match against long string succeeded';
389ecb56 FC	22	is "$-[0]-$+[0]", '0-1', '@-/@+ after match against long string';
99a90e59 FC	23
	24	pos $x = 2**31-1;
	25	my $result;
	26	for(1..5) {
	27	$x =~ /./g;
	28	$result .= "$&-";
	29	}
	30	is $result," -a-b-c-d-", 'scalar //g hopping past the 2**31 threshold';
19394178 FC	31	pos $x = 2**31+3;
	32	$x =~ /./g;
	33	is "$'", 'efg', q "$' after match against long string";
a10eae29 FC	34	is "$-[0],$+[0]", '2147483651,2147483652',
a10eae29 FC	35	'@- and @+ after matches past 2**31';
49f55535 FC	36
	37	# Substring optimisations
	38	is $x =~ /(?:(?:.{32766}){32766}){2}(?:.{32766}){8}.{8}ef/, 1,
	39	'anchored substr past 2**31';