[perl5.git] / t / bigmem / pos.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(3);

# [perl #116907]
# ${\2} to defeat constant folding, which in this case actually slows
# things down
my $x=" "x(${\2}**31+20);
pos $x = 2**31-5;
is pos $x, 2147483643, 'setting pos on large string';
pos $x += 10;
is pos $x, 2147483653, 'reading lvalue pos after setting it > 2**31';
is scalar(pos $x), 2147483653, 'reading it with pos() in rvalue context';
Commit	Line	Data
6174b39a FC	1	#!perl
6174b39a FC	2	BEGIN {
a817e89d	3	chdir 't' if -d 't';
9224f6d1	4	@INC = "../lib";
6174b39a 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
	15	plan(3);
	16
	17	# [perl #116907]
	18	# ${\2} to defeat constant folding, which in this case actually slows
	19	# things down
	20	my $x=" "x(${\2}**31+20);
	21	pos $x = 2**31-5;
	22	is pos $x, 2147483643, 'setting pos on large string';
	23	pos $x += 10;
	24	is pos $x, 2147483653, 'reading lvalue pos after setting it > 2**31';
	25	is scalar(pos $x), 2147483653, 'reading it with pos() in rvalue context';