#!./perl -w
+# Tests for sprintf that do not fit the format of sprintf.t.
+
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
require './test.pl';
}
-plan tests => 3;
+# We'll run 12 extra tests (see below) if $Q is false.
+eval { my $q = pack "q", 0 };
+my $Q = $@ eq '';
+
+my $doubledouble;
+
+# %a and %A depend on the floating point config
+# This totally doesn't test non-IEEE-754 float formats.
+my @hexfloat;
+print "# uvsize = $Config{uvsize}\n";
+print "# nvsize = $Config{nvsize}\n";
+print "# nv_preserves_uv_bits = $Config{nv_preserves_uv_bits}\n";
+print "# d_quad = $Config{d_quad}\n";
+if ($Config{nvsize} == 8 &&
+ (
+ # IEEE-754 64-bit ("double precision"), the most common out there
+ ($Config{uvsize} == 8 && $Config{nv_preserves_uv_bits} == 53)
+ ||
+ # If we have a quad we can still get the mantissa bits.
+ ($Config{uvsize} == 4 && $Config{d_quad})
+ )
+ ) {
+ @hexfloat = (
+ [ '%a', '0', '0x0p+0' ],
+ [ '%a', '1', '0x1p+0' ],
+ [ '%a', '1.0', '0x1p+0' ],
+ [ '%a', '0.5', '0x1p-1' ],
+ [ '%a', '0.25', '0x1p-2' ],
+ [ '%a', '0.75', '0x1.8p-1' ],
+ [ '%a', '3.14', '0x1.91eb851eb851fp+1' ],
+ [ '%a', '-1.0', '-0x1p+0' ],
+ [ '%a', '-3.14', '-0x1.91eb851eb851fp+1' ],
+ [ '%a', '0.1', '0x1.999999999999ap-4' ],
+ [ '%a', '1/7', '0x1.2492492492492p-3' ],
+ [ '%a', 'sqrt(2)', '0x1.6a09e667f3bcdp+0' ],
+ [ '%a', 'exp(1)', '0x1.5bf0a8b145769p+1' ],
+ [ '%a', '2**-10', '0x1p-10' ],
+ [ '%a', '2**10', '0x1p+10' ],
+ [ '%a', '1e-9', '0x1.12e0be826d695p-30' ],
+ [ '%a', '1e9', '0x1.dcd65p+29' ],
+
+ [ '%#a', '1', '0x1.p+0' ],
+ [ '%+a', '1', '+0x1p+0' ],
+ [ '%+a', '-1', '-0x1p+0' ],
+ [ '% a', ' 1', ' 0x1p+0' ],
+ [ '% a', '-1', '-0x1p+0' ],
+
+ [ '%8a', '3.14', '0x1.91eb851eb851fp+1' ],
+ [ '%13a', '3.14', '0x1.91eb851eb851fp+1' ],
+ [ '%20a', '3.14', '0x1.91eb851eb851fp+1' ],
+ [ '%.4a', '3.14', '0x1.91ecp+1' ],
+ [ '%.5a', '3.14', '0x1.91eb8p+1' ],
+ [ '%.6a', '3.14', '0x1.91eb85p+1' ],
+ [ '%.20a', '3.14', '0x1.91eb851eb851f0000000p+1' ],
+ [ '%20.10a', '3.14', ' 0x1.91eb851eb8p+1' ],
+ [ '%20.15a', '3.14', '0x1.91eb851eb851f00p+1' ],
+ [ '% 20.10a', '3.14', ' 0x1.91eb851eb8p+1' ],
+ [ '%020.10a', '3.14', '0x0001.91eb851eb8p+1' ],
+
+ [ '%30a', '3.14', ' 0x1.91eb851eb851fp+1' ],
+ [ '%-30a', '3.14', '0x1.91eb851eb851fp+1 ' ],
+ [ '%030a', '3.14', '0x00000000001.91eb851eb851fp+1' ],
+ [ '%-030a', '3.14', '0x1.91eb851eb851fp+1 ' ],
+
+ [ '%.40a', '3.14',
+ '0x1.91eb851eb851f000000000000000000000000000p+1' ],
+
+ [ '%A', '3.14', '0X1.91EB851EB851FP+1' ],
+ );
+} elsif (($Config{nvsize} == 16 || $Config{nvsize} == 12) &&
+ # 80-bit ("extended precision") long double, pack F is the NV
+ # cd cc cc cc cc cc cc cc fb bf 00 00 00 00 00 00
+ # cd cc cc cc cc cc cc cc fb bf 00 00
+ (pack("F", 0.1) =~ /^\xCD/ || # LE
+ pack("F", 0.1) =~ /\xCD$/)) { # BE (if this ever happens)
+ @hexfloat = (
+ [ '%a', '0', '0x0p+0' ],
+ [ '%a', '1', '0x8p-3' ],
+ [ '%a', '1.0', '0x8p-3' ],
+ [ '%a', '0.5', '0x8p-4' ],
+ [ '%a', '0.25', '0x8p-5' ],
+ [ '%a', '0.75', '0xcp-4' ],
+ [ '%a', '3.14', '0xc.8f5c28f5c28f5c3p-2' ],
+ [ '%a', '-1.0', '-0x8p-3' ],
+ [ '%a', '-3.14', '-0xc.8f5c28f5c28f5c3p-2' ],
+ [ '%a', '0.1', '0xc.ccccccccccccccdp-7' ],
+ [ '%a', '1/7', '0x9.249249249249249p-6' ],
+ [ '%a', 'sqrt(2)', '0xb.504f333f9de6484p-3' ],
+ [ '%a', 'exp(1)', '0xa.df85458a2bb4a9bp-2' ],
+ [ '%a', '2**-10', '0x8p-13' ],
+ [ '%a', '2**10', '0x8p+7' ],
+ [ '%a', '1e-9', '0x8.9705f4136b4a597p-33' ],
+ [ '%a', '1e9', '0xe.e6b28p+26' ],
+
+ [ '%#a', '1', '0x8.p-3' ],
+ [ '%+a', '1', '+0x8p-3' ],
+ [ '%+a', '-1', '-0x8p-3' ],
+ [ '% a', ' 1', ' 0x8p-3' ],
+ [ '% a', '-1', '-0x8p-3' ],
+
+ [ '%8a', '3.14', '0xc.8f5c28f5c28f5c3p-2' ],
+ [ '%13a', '3.14', '0xc.8f5c28f5c28f5c3p-2' ],
+ [ '%20a', '3.14', '0xc.8f5c28f5c28f5c3p-2' ],
+ [ '%.4a', '3.14', '0xc.8f5cp-2' ],
+ [ '%.5a', '3.14', '0xc.8f5c3p-2' ],
+ [ '%.6a', '3.14', '0xc.8f5c29p-2' ],
+ [ '%.20a', '3.14', '0xc.8f5c28f5c28f5c300000p-2' ],
+ [ '%20.10a', '3.14', ' 0xc.8f5c28f5c3p-2' ],
+ [ '%20.15a', '3.14', '0xc.8f5c28f5c28f5c3p-2' ],
+ [ '% 20.10a', '3.14', ' 0xc.8f5c28f5c3p-2' ],
+ [ '%020.10a', '3.14', '0x000c.8f5c28f5c3p-2' ],
+
+ [ '%30a', '3.14', ' 0xc.8f5c28f5c28f5c3p-2' ],
+ [ '%-30a', '3.14', '0xc.8f5c28f5c28f5c3p-2 ' ],
+ [ '%030a', '3.14', '0x00000000c.8f5c28f5c28f5c3p-2' ],
+ [ '%-030a', '3.14', '0xc.8f5c28f5c28f5c3p-2 ' ],
+
+ [ '%.40a', '3.14',
+ '0xc.8f5c28f5c28f5c30000000000000000000000000p-2' ],
+
+ [ '%A', '3.14', '0XC.8F5C28F5C28F5C3P-2' ],
+ );
+} elsif (
+ # IEEE 754 128-bit ("quadruple precision"), e.g. IA-64 (Itanium) in VMS
+ $Config{nvsize} == 16 &&
+ # 9a 99 99 99 99 99 99 99 99 99 99 99 99 99 fb 3f (LE), pack F is the NV
+ (pack("F", 0.1) =~ /^\x9A\x99{6}/ || # LE
+ pack("F", 0.1) =~ /\x99{6}\x9A$/) # BE
+ ) {
+ @hexfloat = (
+ [ '%a', '0', '0x0p+0' ],
+ [ '%a', '1', '0x1p+0' ],
+ [ '%a', '1.0', '0x1p+0' ],
+ [ '%a', '0.5', '0x1p-1' ],
+ [ '%a', '0.25', '0x1p-2' ],
+ [ '%a', '0.75', '0x1.8p-1' ],
+ [ '%a', '3.14', '0x1.91eb851eb851eb851eb851eb851fp+1' ],
+ [ '%a', '-1', '-0x1p+0' ],
+ [ '%a', '-3.14', '-0x1.91eb851eb851eb851eb851eb851fp+1' ],
+ [ '%a', '0.1', '0x1.999999999999999999999999999ap-4' ],
+ [ '%a', '1/7', '0x1.2492492492492492492492492492p-3' ],
+ [ '%a', 'sqrt(2)', '0x1.6a09e667f3bcc908b2fb1366ea95p+0' ],
+ [ '%a', 'exp(1)', '0x1.5bf0a8b1457695355fb8ac404e7ap+1' ],
+ [ '%a', '2**-10', '0x1p-10' ],
+ [ '%a', '2**10', '0x1p+10' ],
+ [ '%a', '1e-09', '0x1.12e0be826d694b2e62d01511f12ap-30' ],
+ [ '%a', '1e9', '0x1.dcd65p+29' ],
+
+ [ '%#a', '1', '0x1.p+0' ],
+ [ '%+a', '1', '+0x1p+0' ],
+ [ '%+a', '-1', '-0x1p+0' ],
+ [ '% a', '1', ' 0x1p+0' ],
+ [ '% a', '-1', '-0x1p+0' ],
+
+ [ '%8a', '3.14', '0x1.91eb851eb851eb851eb851eb851fp+1' ],
+ [ '%13a', '3.14', '0x1.91eb851eb851eb851eb851eb851fp+1' ],
+ [ '%20a', '3.14', '0x1.91eb851eb851eb851eb851eb851fp+1' ],
+ [ '%.4a', '3.14', '0x1.91ecp+1' ],
+ [ '%.5a', '3.14', '0x1.91eb8p+1' ],
+ [ '%.6a', '3.14', '0x1.91eb85p+1' ],
+ [ '%.20a', '3.14', '0x1.91eb851eb851eb851eb8p+1' ],
+ [ '%20.10a', '3.14', ' 0x1.91eb851eb8p+1' ],
+ [ '%20.15a', '3.14', '0x1.91eb851eb851eb8p+1' ],
+ [ '% 20.10a', '3.14', ' 0x1.91eb851eb8p+1' ],
+ [ '%020.10a', '3.14', '0x0001.91eb851eb8p+1' ],
+
+ [ '%30a', '3.14', '0x1.91eb851eb851eb851eb851eb851fp+1' ],
+ [ '%-30a', '3.14', '0x1.91eb851eb851eb851eb851eb851fp+1' ],
+ [ '%030a', '3.14', '0x1.91eb851eb851eb851eb851eb851fp+1' ],
+ [ '%-030a', '3.14', '0x1.91eb851eb851eb851eb851eb851fp+1' ],
+
+ [ '%.40a', '3.14',
+ '0x1.91eb851eb851eb851eb851eb851f000000000000p+1' ],
+
+ [ '%A', '3.14', '0X1.91EB851EB851EB851EB851EB851FP+1' ],
+ );
+} elsif (
+ # "double-double", two 64-bit doubles end to end
+ $Config{nvsize} == 16 &&
+ # bf b9 99 99 99 99 99 9a bc 59 99 99 99 99 99 9a (BE), pack F is the NV
+ (pack("F", 0.1) =~ /^\x9A\x99{5}\x59\xBC/ || # LE
+ pack("F", 0.1) =~ /\xBC\x59\x99{5}\x9A$/) # BE
+ ) {
+ $doubledouble = 1;
+ @hexfloat = (
+ [ '%a', '0', '0x0p+0' ],
+ [ '%a', '1', '0x1p+0' ],
+ [ '%a', '1.0', '0x1p+0' ],
+ [ '%a', '0.5', '0x1p-1' ],
+ [ '%a', '0.25', '0x1p-2' ],
+ [ '%a', '0.75', '0x1.8p-1' ],
+ [ '%a', '3.14', '0x1.91eb851eb851eb851eb851eb85p+1' ],
+ [ '%a', '-1', '-0x0p+0' ],
+ [ '%a', '-3.14', '-0x1.91eb851eb851eb851eb851eb85p+1' ],
+ [ '%a', '0.1', '0x1.999999999999999999999999998p-4' ],
+ [ '%a', '1/7', '0x1.249249249249249249249249248p-3' ],
+ [ '%a', 'sqrt(2)', '0x1.6a09e667f3bcc908b2fb1366ea8p+0' ],
+ [ '%a', 'exp(1)', '0x1.5bf0a8b1457695355fb8ac404e8p+1' ],
+ [ '%a', '2**-10', '0x1p-10' ],
+ [ '%a', '2**10', '0x1p+10' ],
+ [ '%a', '1e-09', '0x1.12e0be826d694b2e62d01511f14p-30' ],
+ [ '%a', '1e9', '0x1.dcd65p+29' ],
+
+ [ '%#a', '1', '0x1.p+0' ],
+ [ '%+a', '1', '+0x1p+0' ],
+ [ '%+a', '-1', '-0x1p+0' ],
+ [ '% a', '1', ' 0x1p+0' ],
+ [ '% a', '-1', '-0x1p+0' ],
+
+ [ '%8a', '3.14', '0x1.91eb851eb851eb851eb851eb85p+1' ],
+ [ '%13a', '3.14', '0x1.91eb851eb851eb851eb851eb85p+1' ],
+ [ '%20a', '3.14', '0x1.91eb851eb851eb851eb851eb85p+1' ],
+ [ '%.4a', '3.14', '0x1.91ecp+1' ],
+ [ '%.5a', '3.14', '0x1.91eb8p+1' ],
+ [ '%.6a', '3.14', '0x1.91eb85p+1' ],
+ [ '%.20a', '3.14', '0x1.91eb851eb851eb851eb8p+1' ],
+ [ '%20.10a', '3.14', ' 0x1.91eb851eb8p+1' ],
+ [ '%20.15a', '3.14', '0x1.91eb851eb851eb8p+1' ],
+ [ '% 20.10a', '3.14', ' 0x1.91eb851eb8p+1' ],
+ [ '%020.10a', '3.14', '0x0001.91eb851eb8p+1' ],
+
+ [ '%30a', '3.14', '0x1.91eb851eb851eb851eb851eb85p+1' ],
+ [ '%-30a', '3.14', '0x1.91eb851eb851eb851eb851eb85p+1' ],
+ [ '%030a', '3.14', '0x1.91eb851eb851eb851eb851eb85p+1' ],
+ [ '%-030a', '3.14', '0x1.91eb851eb851eb851eb851eb85p+1' ],
+
+ [ '%.40a', '3.14',
+ '0x1.91eb851eb851eb851eb851eb8500000000000000p+1' ],
+
+ [ '%A', '3.14', '0X1.91EB851EB851EB851EB851EB85P+1' ],
+ );
+} else {
+ print "# no hexfloat tests\n";
+}
+
+plan tests => 1408 + ($Q ? 0 : 12) + @hexfloat + 8;
+
+use strict;
+use Config;
is(
sprintf("%.40g ",0.01),
sprintf("%.40f", 0.01)." ",
q(the sprintf "%.<number>f" optimization)
);
+
+# 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
+fresh_perl_like(
+ 'print sprintf "xxx%n\n"; print undef',
+ qr/Modification of a read-only value attempted at - line 1\./,
+ { switches => [ '-w' ] },
+ q(%n should not be able to modify read-only constants),
+);
+
+# 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 printf /, "overflow in printf");
+}
+
+# check %NNN$ for range bounds
+{
+ my ($warn, $bad) = (0,0);
+ local $SIG{__WARN__} = sub {
+ if ($_[0] =~ /missing argument/i) {
+ $warn++
+ }
+ else {
+ $bad++
+ }
+ };
+
+ 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($bad, 0, "unexpected warnings");
+}
+
+# Tests for "missing argument" and "redundant argument" warnings
+{
+ my ($warn_missing, $warn_redundant, $warn_bad) = (0,0,0);
+ local $SIG{__WARN__} = sub {
+ if ($_[0] =~ /missing argument/i) {
+ $warn_missing++
+ }
+ elsif ($_[0] =~ /redundant argument/i) {
+ $warn_redundant++
+ }
+ else {
+ $warn_bad++
+ }
+ };
+
+ my @tests = (
+ # The "", "%s", and "%-p" formats have special-case handling
+ # in sv.c
+ {
+ fmt => "",
+ args => [ qw( x ) ],
+ res => "",
+ m => 0,
+ r => 1,
+ },
+ {
+ fmt => "%s",
+ args => [ qw( x y ) ],
+ res => "x",
+ m => 0,
+ r => 1,
+ },
+ {
+ fmt => "%-p",
+ args => [ qw( x y ) ],
+ res => qr/^[0-9a-f]+$/as,
+ m => 0,
+ r => 1,
+ },
+ # Other non-specialcased patterns
+ {
+ fmt => "%s : %s",
+ args => [ qw( a b c ) ],
+ res => "a : b",
+ m => 0,
+ r => 1,
+ },
+ {
+ fmt => "%s : %s : %s",
+ args => [ qw( a b c d e ) ],
+ res => "a : b : c",
+ m => 0,
+ # Note how we'll only warn about redundant arguments once,
+ # even though both "d" and "e" are redundant...
+ r => 1,
+ },
+ {
+ fmt => "%s : %s : %s",
+ args => [ ],
+ res => " : : ",
+ # ...But when arguments are missing we'll warn about every
+ # missing argument. This difference between the two
+ # warnings is a feature.
+ m => 3,
+ r => 0,
+ },
+
+ # Tests for format parameter indexes.
+ #
+ # Deciding what to do about these is a bit tricky, and so is
+ # "correctly" warning about missing arguments on them.
+ #
+ # Should we warn if you supply 4 arguments but only use
+ # argument 1,3 & 4? Or only if you supply 5 arguments and your
+ # highest used argument is 4?
+ #
+ # For some uses of this printf feature (e.g. i18n systems)
+ # it's a always a logic error to not print out every provided
+ # argument, but for some other uses skipping some might be a
+ # feature (although you could argue that then printf should be
+ # called as e.g:
+ #
+ # printf q[%1$s %3$s], x(), undef, z();
+ #
+ # Instead of:
+ #
+ # printf q[%1$s %3$s], x(), y(), z();
+ #
+ # Since calling the (possibly expensive) y() function is
+ # completely redundant there.
+ #
+ # We deal with all these potential problems by not even
+ # trying. If the pattern contains any format parameter indexes
+ # whatsoever we'll never warn about redundant arguments.
+ {
+ fmt => '%1$s : %2$s',
+ args => [ qw( x y z ) ],
+ res => "x : y",
+ m => 0,
+ r => 0,
+ },
+ {
+ fmt => '%2$s : %4$s : %5$s',
+ args => [ qw( a b c d )],
+ res => "b : d : ",
+ m => 1,
+ r => 0,
+ },
+ {
+ fmt => '%s : %1$s : %s',
+ args => [ qw( x y z ) ],
+ res => "x : x : y",
+ m => 0,
+ r => 0,
+ },
+
+ );
+
+ for my $i (0..$#tests) {
+ my $test = $tests[$i];
+ my $result = sprintf $test->{fmt}, @{$test->{args}};
+
+ my $prefix = "For format '$test->{fmt}' and arguments/result '@{$test->{args}}'/'$result'";
+ if (ref $test->{res} eq 'Regexp') {
+ like($result, $test->{res}, "$prefix got the right result");
+ } else {
+ is($result, $test->{res}, "$prefix got the right result");
+ }
+ is($warn_missing, $test->{m}, "$prefix got '$test->{m}' 'missing argument' warnings");
+ is($warn_redundant, $test->{r}, "$prefix got '$test->{r}' 'redundant argument' warnings");
+ is($warn_bad, 0, "$prefix No unknown warnings");
+
+ ($warn_missing, $warn_redundant, $warn_bad) = (0,0,0);
+ }
+}
+
{
- chop(my $utf8_format = "%-3s\x{100}");
- is(
- sprintf($utf8_format, "\xe4"),
- "\xe4 ",
- q(width calculation under utf8 upgrade)
- );
+ foreach my $ord (0 .. 255) {
+ my $bad = 0;
+ local $SIG{__WARN__} = sub {
+ if ($_[0] !~ /^Invalid conversion in sprintf/) {
+ warn $_[0];
+ $bad++;
+ }
+ };
+ my $r = eval {sprintf '%v' . chr $ord};
+ is ($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
+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 };
+ my $sprintf_got = sprintf($fmt, $num);
+ if ($Q) {
+ is($sprintf_got, $num, "quad: $fmt -> $num");
+ is($w, '', "no warnings for: $fmt -> $num");
+ } else {
+ is($sprintf_got, $fmt, "quad unsupported: $fmt -> $fmt");
+ like($w, qr/Invalid conversion in sprintf: "$fmt"/, "got warning about invalid conversion from fmt : $fmt");
+ like($w, qr/Redundant argument in sprintf/, "got warning about redundant argument in sprintf from fmt : $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}"),
+ );
+ }
+}
+
+# Overload count
+package o {
+ use overload
+ '""', sub { ++our $count; $_[0][0]; },
+ '0+', sub { ++our $numcount; $_[0][1]; }
+}
+my $o = bless ["\x{100}",42], o::;
+() = sprintf "%1s", $o;
+is $o::count, '1', 'sprinf %1s overload count';
+$o::count = 0;
+() = sprintf "%.1s", $o;
+is $o::count, '1', 'sprinf %.1s overload count';
+$o::count = 0;
+() = sprintf "%d", $o;
+is $o::count, 0, 'sprintf %d string overload count is 0';
+is $o::numcount, 1, 'sprintf %d number overload count is 1';
+
+my $ppc64_linux = $Config{archname} =~ /^ppc64-linux/;
+my $irix_ld = $Config{archname} =~ /^IP\d+-irix-ld$/;
+
+for my $t (@hexfloat) {
+ my ($format, $arg, $expected) = @$t;
+ $arg = eval $arg;
+ my $result = sprintf($format, $arg);
+ my $ok = $result eq $expected;
+ if ($doubledouble && $ppc64_linux && $arg =~ /^2.71828/) {
+ # ppc64-linux has buggy exp(1).
+ local $::TODO = "$Config{archname} exp(1)";
+ ok($ok, "'$format' '$arg' -> '$result' cf '$expected'");
+ next;
+ }
+ if ($doubledouble && $irix_ld && $arg =~ /^1.41421/) {
+ # irix has buggy sqrt(2),
+ # last hexdigit one bit error:
+ # gets '0x1.6a09e667f3bcc908b2fb1366eacp+0'
+ # wants '0x1.6a09e667f3bcc908b2fb1366ea8p+0'
+ local $::TODO = "$Config{archname} sqrt(2)";
+ ok($ok, "'$format' '$arg' -> '$result' cf '$expected'");
+ next;
+ }
+ unless ($ok) {
+ # It seems that there can be difference in the last bits:
+ # [perl #122578]
+ # got "0x1.5bf0a8b14576ap+1"
+ # expected "0x1.5bf0a8b145769p+1"
+ # (Android on ARM)
+ #
+ # Exact cause unknown but suspecting different fp rounding modes,
+ # (towards zero? towards +inf? towards -inf?) about which Perl
+ # is blissfully unaware.
+ #
+ # Try extracting one (or sometimes two) last mantissa
+ # hexdigits, and see if they differ in value by one.
+ my ($rh, $eh) = ($result, $expected);
+ sub extract_prefix {
+ ($_[0] =~ s/(-?0x[0-9a-fA-F]+\.)//) && return $1;
+ }
+ my $rp = extract_prefix($rh);
+ my $ep = extract_prefix($eh);
+ print "# rp = $rp, ep = $ep (rh $rh, eh $eh)\n";
+ if ($rp eq $ep) { # If prefixes match.
+ sub extract_exponent {
+ ($_[0] =~ s/([pP][+-]?\d+)//) && return $1;
+ }
+ my $re = extract_exponent($rh);
+ my $ee = extract_exponent($eh);
+ print "# re = $re, ee = $ee (rh $rh, eh $eh)\n";
+ if ($re eq $ee) { # If exponents match.
+ # Remove the common prefix of the mantissa bits.
+ my $la = length($rh);
+ my $lb = length($eh);
+ my $i;
+ for ($i = 0; $i < $la && $i < $lb; $i++) {
+ last if substr($rh, $i, 1) ne substr($eh, $i, 1);
+ }
+ $rh = substr($rh, $i);
+ $eh = substr($eh, $i);
+ print "# (rh $rh, eh $eh)\n";
+ if ($rh ne $eh) {
+ # If necessary, pad the shorter one on the right
+ # with one zero (for example "...1f" vs "...2",
+ # we want to compare "1f" to "20").
+ if (length $rh < length $eh) {
+ $rh .= '0';
+ } elsif (length $eh < length $rh) {
+ $eh .= '0';
+ }
+ print "# (rh $rh, eh $eh)\n";
+ if (length $eh == length $rh) {
+ if (abs(hex($eh) - hex($rh)) == 1) {
+ $ok = 1;
+ }
+ }
+ }
+ }
+ }
+ }
+ ok($ok, "'$format' '$arg' -> '$result' cf '$expected'");
+}
+
+# double-double long double %a special testing.
+SKIP: {
+ skip("$^O doublekind=$Config{doublekind}", 6)
+ unless ($Config{doublekind} == 4 && $^O eq 'linux');
+ # [rt.perl.org 125633]
+ like(sprintf("%La\n", (2**1020) + (2**-1072)),
+ qr/^0x1.0{522}1p\+1020$/);
+ like(sprintf("%La\n", (2**1021) + (2**-1072)),
+ qr/^0x1.0{523}8p\+1021$/);
+ like(sprintf("%La\n", (2**1022) + (2**-1072)),
+ qr/^0x1.0{523}4p\+1022$/);
+ like(sprintf("%La\n", (2**1023) + (2**-1072)),
+ qr/^0x1.0{523}2p\+1023$/);
+ like(sprintf("%La\n", (2**1023) + (2**-1073)),
+ qr/^0x1.0{523}1p\+1023$/);
+ like(sprintf("%La\n", (2**1023) + (2**-1074)),
+ qr/^0x1.0{524}8p\+1023$/);
+}
+
+SKIP: {
+ skip("negative zero not available\n", 2)
+ unless sprintf('%+f', -0.0) =~ /^-0/;
+ is(sprintf("%a", -0.0), "-0x0p+0", "negative zero");
+ is(sprintf("%+a", -0.0), "-0x0p+0", "negative zero");
}
https://perl5.git.perl.org / perl5.git / blobdiff