require './test.pl';
}
-plan tests => 7 + 256;
+plan tests => 1368;
+
+use strict;
+use Config;
is(
sprintf("%.40g ",0.01),
sprintf("%.40f", 0.01)." ",
q(the sprintf "%.<number>f" optimization)
);
-{
- chop(my $utf8_format = "%-3s\x{100}");
- is(
- sprintf($utf8_format, "\xe4"),
- "\xe4 ",
- q(width calculation under utf8 upgrade)
- );
+
+# cases of $i > 1 are against [perl #39126]
+for my $i (1, 5, 10, 20, 50, 100) {
+ chop(my $utf8_format = "%-*s\x{100}");
+ my $string = "\xB4"x$i; # latin1 ACUTE or ebcdic COPYRIGHT
+ my $expect = $string." "x$i; # followed by 2*$i spaces
+ is(sprintf($utf8_format, 3*$i, $string), $expect,
+ "width calculation under utf8 upgrade, length=$i");
+}
+
+# check simultaneous width & precision with wide characters
+for my $i (1, 3, 5, 10) {
+ my $string = "\x{0410}"x($i+10); # cyrillic capital A
+ my $expect = "\x{0410}"x$i; # cut down to exactly $i characters
+ my $format = "%$i.${i}s";
+ is(sprintf($format, $string), $expect,
+ "width & precision interplay with utf8 strings, length=$i");
}
# Used to mangle PL_sv_undef
q(%n should not be able to modify read-only constants),
);
-# check %NNN$ for range bounds, especially negative 2's complement
+# check overflows
+for (int(~0/2+1), ~0, "9999999999999999999") {
+ is(eval {sprintf "%${_}d", 0}, undef, "no sprintf result expected %${_}d");
+ like($@, qr/^Integer overflow in format string for sprintf /, "overflow in sprintf");
+ is(eval {printf "%${_}d\n", 0}, undef, "no printf result expected %${_}d");
+ like($@, qr/^Integer overflow in format string for prtf /, "overflow in printf");
+}
+# check %NNN$ for range bounds
{
my ($warn, $bad) = (0,0);
local $SIG{__WARN__} = sub {
$bad++
}
};
- my $result = sprintf join('', map("%$_\$s%" . ~$_ . '$s', 1..20)),
- qw(a b c d);
- is($result, "abcd", "only four valid values");
+
+ my $fmt = join('', map("%$_\$s%" . ((1 << 31)-$_) . '$s', 1..20));
+ my $result = sprintf $fmt, qw(a b c d);
+ is($result, "abcd", "only four valid values in $fmt");
is($warn, 36, "expected warnings");
is($bad, 0, "unexpected warnings");
}
is ($bad, 0, "pattern '%v' . chr $ord");
}
}
+
+sub mysprintf_int_flags {
+ my ($fmt, $num) = @_;
+ die "wrong format $fmt" if $fmt !~ /^%([-+ 0]+)([1-9][0-9]*)d\z/;
+ my $flag = $1;
+ my $width = $2;
+ my $sign = $num < 0 ? '-' :
+ $flag =~ /\+/ ? '+' :
+ $flag =~ /\ / ? ' ' :
+ '';
+ my $abs = abs($num);
+ my $padlen = $width - length($sign.$abs);
+ return
+ $flag =~ /0/ && $flag !~ /-/ # do zero padding
+ ? $sign . '0' x $padlen . $abs
+ : $flag =~ /-/ # left or right
+ ? $sign . $abs . ' ' x $padlen
+ : ' ' x $padlen . $sign . $abs;
+}
+
+# Whole tests for "%4d" with 2 to 4 flags;
+# total counts: 3 * (4**2 + 4**3 + 4**4) == 1008
+
+my @flags = ("-", "+", " ", "0");
+for my $num (0, -1, 1) {
+ for my $f1 (@flags) {
+ for my $f2 (@flags) {
+ for my $f3 ('', @flags) { # '' for doubled flags
+ my $flag = $f1.$f2.$f3;
+ my $width = 4;
+ my $fmt = '%'."${flag}${width}d";
+ my $result = sprintf($fmt, $num);
+ my $expect = mysprintf_int_flags($fmt, $num);
+ is($result, $expect, qq/sprintf("$fmt",$num)/);
+
+ next if $f3 eq '';
+
+ for my $f4 (@flags) { # quadrupled flags
+ my $flag = $f1.$f2.$f3.$f4;
+ my $fmt = '%'."${flag}${width}d";
+ my $result = sprintf($fmt, $num);
+ my $expect = mysprintf_int_flags($fmt, $num);
+ is($result, $expect, qq/sprintf("$fmt",$num)/);
+ }
+ }
+ }
+ }
+}
+
+# test that %f doesn't panic with +Inf, -Inf, NaN [perl #45383]
+foreach my $n (2**1e100, -2**1e100, 2**1e100/2**1e100) { # +Inf, -Inf, NaN
+ eval { my $f = sprintf("%f", $n); };
+ is $@, "", "sprintf(\"%f\", $n)";
+}
+
+# test %ll formats with and without HAS_QUAD
+eval { my $q = pack "q", 0 };
+my $Q = $@ eq '';
+
+my @tests = (
+ [ '%lld' => [qw( 4294967296 -100000000000000 )] ],
+ [ '%lli' => [qw( 4294967296 -100000000000000 )] ],
+ [ '%llu' => [qw( 4294967296 100000000000000 )] ],
+ [ '%Ld' => [qw( 4294967296 -100000000000000 )] ],
+ [ '%Li' => [qw( 4294967296 -100000000000000 )] ],
+ [ '%Lu' => [qw( 4294967296 100000000000000 )] ],
+);
+
+for my $t (@tests) {
+ my($fmt, $nums) = @$t;
+ for my $num (@$nums) {
+ my $w; local $SIG{__WARN__} = sub { $w = shift };
+ is(sprintf($fmt, $num), $Q ? $num : $fmt, "quad: $fmt -> $num");
+ like($w, $Q ? '' : qr/Invalid conversion in sprintf: "$fmt"/, "warning: $fmt");
+ }
+}
+
+# Check unicode vs byte length
+for my $width (1,2,3,4,5,6,7) {
+ for my $precis (1,2,3,4,5,6,7) {
+ my $v = "\x{20ac}\x{20ac}";
+ my $format = "%" . $width . "." . $precis . "s";
+ my $chars = ($precis > 2 ? 2 : $precis);
+ my $space = ($width < 2 ? 0 : $width - $chars);
+ fresh_perl_is(
+ 'my $v = "\x{20ac}\x{20ac}"; my $x = sprintf "'.$format.'", $v; $x =~ /^(\s*)(\S*)$/; print "$_" for map {length} $1, $2',
+ "$space$chars",
+ {},
+ q(sprintf ").$format.q(", "\x{20ac}\x{20ac}"),
+ );
+ }
+}