toke.c AOK we seem to have lost a few ambiguous warnings!! $a = <<; Use of comma-less variable list is deprecated (called 3 times via depcom) \1 better written as $1 use warnings 'syntax' ; s/(abc)/\1/; warn(warn_nosemi) Semicolon seems to be missing $a = 1 &time ; Reversed %c= operator my $a =+ 2 ; $a =- 2 ; $a =* 2 ; $a =% 2 ; $a =& 2 ; $a =. 2 ; $a =^ 2 ; $a =| 2 ; $a =< 2 ; $a =/ 2 ; Multidimensional syntax %.*s not supported my $a = $a[1,2] ; You need to quote \"%s\"" sub fred {} ; $SIG{TERM} = fred; Scalar value %.*s better written as $%.*s" @a[3] = 2; @a{3} = 2; Can't use \\%c to mean $%c in expression $_ = "ab" ; s/(ab)/\1/e; Unquoted string "abc" may clash with future reserved word at - line 3. warn(warn_reserved $a = abc; Possible attempt to separate words with commas @a = qw(a, b, c) ; Possible attempt to put comments in qw() list @a = qw(a b # c) ; %s (...) interpreted as function print ("") printf ("") sort ("") Ambiguous use of %c{%s%s} resolved to %c%s%s $a = ${time[2]} $a = ${time{2}} Ambiguous use of %c{%s} resolved to %c%s $a = ${time} sub fred {} $a = ${fred} Misplaced _ in number $a = 1_2; $a = 1_2345_6; Bareword \"%s\" refers to nonexistent package $a = FRED:: ; Ambiguous call resolved as CORE::%s(), qualify as such or use & sub time {} my $a = time() Unrecognized escape \\%c passed through $a = "\m" ; %s number > %s non-portable my $a = 0b011111111111111111111111111111110 ; $a = 0b011111111111111111111111111111111 ; $a = 0b111111111111111111111111111111111 ; $a = 0x0fffffffe ; $a = 0x0ffffffff ; $a = 0x1ffffffff ; $a = 0037777777776 ; $a = 0037777777777 ; $a = 0047777777777 ; Integer overflow in binary number my $a = 0b011111111111111111111111111111110 ; $a = 0b011111111111111111111111111111111 ; $a = 0b111111111111111111111111111111111 ; $a = 0x0fffffffe ; $a = 0x0ffffffff ; $a = 0x1ffffffff ; $a = 0037777777776 ; $a = 0037777777777 ; $a = 0047777777777 ; dump() better written as CORE::dump() Use of /c modifier is meaningless without /g Use of /c modifier is meaningless in s/// Mandatory Warnings ------------------ Use of "%s" without parentheses is ambiguous [check_uni] rand + 4 Ambiguous use of -%s resolved as -&%s() [yylex] sub fred {} ; - fred ; Precedence problem: open %.*s should be open(%.*s) [yylex] open FOO || die; Operator or semicolon missing before %c%s [yylex] Ambiguous use of %c resolved as operator %c *foo *foo __END__ # toke.c use warnings 'deprecated' ; format STDOUT = @<<< @||| @>>> @>>> $a $b "abc" 'def' . no warnings 'deprecated' ; format STDOUT = @<<< @||| @>>> @>>> $a $b "abc" 'def' . EXPECT Use of comma-less variable list is deprecated at - line 5. Use of comma-less variable list is deprecated at - line 5. Use of comma-less variable list is deprecated at - line 5. ######## # toke.c use warnings 'deprecated' ; $a = <<; no warnings 'deprecated' ; $a = <<; EXPECT Use of bare << to mean <<"" is deprecated at - line 3. ######## # toke.c use warnings 'syntax' ; s/(abc)/\1/; no warnings 'syntax' ; s/(abc)/\1/; EXPECT \1 better written as $1 at - line 3. ######## # toke.c use warnings 'semicolon' ; $a = 1 &time ; no warnings 'semicolon' ; $a = 1 &time ; EXPECT Semicolon seems to be missing at - line 3. ######## # toke.c use warnings 'syntax' ; my $a =+ 2 ; $a =- 2 ; $a =* 2 ; $a =% 2 ; $a =& 2 ; $a =. 2 ; $a =^ 2 ; $a =| 2 ; $a =< 2 ; $a =/ 2 ; EXPECT Reversed += operator at - line 3. Reversed -= operator at - line 4. Reversed *= operator at - line 5. Reversed %= operator at - line 6. Reversed &= operator at - line 7. Reversed .= operator at - line 8. Reversed ^= operator at - line 9. Reversed |= operator at - line 10. Reversed <= operator at - line 11. syntax error at - line 8, near "=." syntax error at - line 9, near "=^" syntax error at - line 10, near "=|" Unterminated <> operator at - line 11. ######## # toke.c no warnings 'syntax' ; my $a =+ 2 ; $a =- 2 ; $a =* 2 ; $a =% 2 ; $a =& 2 ; $a =. 2 ; $a =^ 2 ; $a =| 2 ; $a =< 2 ; $a =/ 2 ; EXPECT syntax error at - line 8, near "=." syntax error at - line 9, near "=^" syntax error at - line 10, near "=|" Unterminated <> operator at - line 11. ######## # toke.c use warnings 'syntax' ; my $a = $a[1,2] ; no warnings 'syntax' ; my $a = $a[1,2] ; EXPECT Multidimensional syntax $a[1,2] not supported at - line 3. ######## # toke.c use warnings 'syntax' ; sub fred {} ; $SIG{TERM} = fred; no warnings 'syntax' ; $SIG{TERM} = fred; EXPECT You need to quote "fred" at - line 3. ######## # toke.c use warnings 'syntax' ; @a[3] = 2; @a{3} = 2; no warnings 'syntax' ; @a[3] = 2; @a{3} = 2; EXPECT Scalar value @a[3] better written as $a[3] at - line 3. Scalar value @a{3} better written as $a{3} at - line 4. ######## # toke.c use warnings 'syntax' ; $_ = "ab" ; s/(ab)/\1/e; no warnings 'syntax' ; $_ = "ab" ; s/(ab)/\1/e; EXPECT Can't use \1 to mean $1 in expression at - line 4. ######## # toke.c use warnings 'reserved' ; $a = abc; $a = { def => 1 }; no warnings 'reserved' ; $a = abc; EXPECT Unquoted string "abc" may clash with future reserved word at - line 3. ######## # toke.c use warnings 'qw' ; @a = qw(a, b, c) ; no warnings 'qw' ; @a = qw(a, b, c) ; EXPECT Possible attempt to separate words with commas at - line 3. ######## # toke.c use warnings 'qw' ; @a = qw(a b #) ; no warnings 'qw' ; @a = qw(a b #) ; EXPECT Possible attempt to put comments in qw() list at - line 3. ######## # toke.c use warnings 'syntax' ; print ("") EXPECT print (...) interpreted as function at - line 3. ######## # toke.c no warnings 'syntax' ; print ("") EXPECT ######## # toke.c use warnings 'syntax' ; printf ("") EXPECT printf (...) interpreted as function at - line 3. ######## # toke.c no warnings 'syntax' ; printf ("") EXPECT ######## # toke.c use warnings 'syntax' ; sort ("") EXPECT sort (...) interpreted as function at - line 3. ######## # toke.c no warnings 'syntax' ; sort ("") EXPECT ######## # toke.c use warnings 'ambiguous' ; $a = ${time[2]}; no warnings 'ambiguous' ; $a = ${time[2]}; EXPECT Ambiguous use of ${time[...]} resolved to $time[...] at - line 3. ######## # toke.c use warnings 'ambiguous' ; $a = ${time{2}}; EXPECT Ambiguous use of ${time{...}} resolved to $time{...} at - line 3. ######## # toke.c no warnings 'ambiguous' ; $a = ${time{2}}; EXPECT ######## # toke.c use warnings 'ambiguous' ; $a = ${time} ; no warnings 'ambiguous' ; $a = ${time} ; EXPECT Ambiguous use of ${time} resolved to $time at - line 3. ######## # toke.c use warnings 'ambiguous' ; sub fred {} $a = ${fred} ; no warnings 'ambiguous' ; $a = ${fred} ; EXPECT Ambiguous use of ${fred} resolved to $fred at - line 4. ######## # toke.c use warnings 'syntax' ; $a = _123; print "$a\n"; #( 3 string) $a = 1_23; print "$a\n"; $a = 12_3; print "$a\n"; $a = 123_; print "$a\n"; # 6 $a = _+123; print "$a\n"; # 7 string) $a = +_123; print "$a\n"; #( 8 string) $a = +1_23; print "$a\n"; $a = +12_3; print "$a\n"; $a = +123_; print "$a\n"; # 11 $a = _-123; print "$a\n"; #(12 string) $a = -_123; print "$a\n"; #(13 string) $a = -1_23; print "$a\n"; $a = -12_3; print "$a\n"; $a = -123_; print "$a\n"; # 16 $a = 123._456; print "$a\n"; # 17 $a = 123.4_56; print "$a\n"; $a = 123.45_6; print "$a\n"; $a = 123.456_; print "$a\n"; # 20 $a = +123._456; print "$a\n"; # 21 $a = +123.4_56; print "$a\n"; $a = +123.45_6; print "$a\n"; $a = +123.456_; print "$a\n"; # 24 $a = -123._456; print "$a\n"; # 25 $a = -123.4_56; print "$a\n"; $a = -123.45_6; print "$a\n"; $a = -123.456_; print "$a\n"; # 28 $a = 123.456E_12; printf("%.0f\n", $a); # 29 $a = 123.456E1_2; printf("%.0f\n", $a); $a = 123.456E12_; printf("%.0f\n", $a); # 31 $a = 123.456E_+12; printf("%.0f\n", $a); # 32 $a = 123.456E+_12; printf("%.0f\n", $a); # 33 $a = 123.456E+1_2; printf("%.0f\n", $a); $a = 123.456E+12_; printf("%.0f\n", $a); # 35 $a = 123.456E_-12; print "$a\n"; # 36 $a = 123.456E-_12; print "$a\n"; # 37 $a = 123.456E-1_2; print "$a\n"; $a = 123.456E-12_; print "$a\n"; # 39 $a = 1__23; print "$a\n"; # 40 $a = 12.3__4; print "$a\n"; # 41 $a = 12.34e1__2; printf("%.0f\n", $a); # 42 no warnings 'syntax' ; $a = _123; print "$a\n"; $a = 1_23; print "$a\n"; $a = 12_3; print "$a\n"; $a = 123_; print "$a\n"; $a = _+123; print "$a\n"; $a = +_123; print "$a\n"; $a = +1_23; print "$a\n"; $a = +12_3; print "$a\n"; $a = +123_; print "$a\n"; $a = _-123; print "$a\n"; $a = -_123; print "$a\n"; $a = -1_23; print "$a\n"; $a = -12_3; print "$a\n"; $a = -123_; print "$a\n"; $a = 123._456; print "$a\n"; $a = 123.4_56; print "$a\n"; $a = 123.45_6; print "$a\n"; $a = 123.456_; print "$a\n"; $a = +123._456; print "$a\n"; $a = +123.4_56; print "$a\n"; $a = +123.45_6; print "$a\n"; $a = +123.456_; print "$a\n"; $a = -123._456; print "$a\n"; $a = -123.4_56; print "$a\n"; $a = -123.45_6; print "$a\n"; $a = -123.456_; print "$a\n"; $a = 123.456E_12; printf("%.0f\n", $a); $a = 123.456E1_2; printf("%.0f\n", $a); $a = 123.456E12_; printf("%.0f\n", $a); $a = 123.456E_+12; printf("%.0f\n", $a); $a = 123.456E+_12; printf("%.0f\n", $a); $a = 123.456E+1_2; printf("%.0f\n", $a); $a = 123.456E+12_; printf("%.0f\n", $a); $a = 123.456E_-12; print "$a\n"; $a = 123.456E-_12; print "$a\n"; $a = 123.456E-1_2; print "$a\n"; $a = 123.456E-12_; print "$a\n"; $a = 1__23; print "$a\n"; $a = 12.3__4; print "$a\n"; $a = 12.34e1__2; printf("%.0f\n", $a); EXPECT OPTIONS regex Misplaced _ in number at - line 6. Misplaced _ in number at - line 11. Misplaced _ in number at - line 16. Misplaced _ in number at - line 17. Misplaced _ in number at - line 20. Misplaced _ in number at - line 21. Misplaced _ in number at - line 24. Misplaced _ in number at - line 25. Misplaced _ in number at - line 28. Misplaced _ in number at - line 29. Misplaced _ in number at - line 31. Misplaced _ in number at - line 32. Misplaced _ in number at - line 33. Misplaced _ in number at - line 35. Misplaced _ in number at - line 36. Misplaced _ in number at - line 37. Misplaced _ in number at - line 39. Misplaced _ in number at - line 40. Misplaced _ in number at - line 41. Misplaced _ in number at - line 42. _123 123 123 123 123 _123 123 123 123 -123 -_123 -123 -123 -123 123.456 123.456 123.456 123.456 123.456 123.456 123.456 123.456 -123.456 -123.456 -123.456 -123.456 123456000000000 123456000000000 123456000000000 123456000000000 123456000000000 123456000000000 123456000000000 1.23456e-0?10 1.23456e-0?10 1.23456e-0?10 1.23456e-0?10 123 12.34 12340000000000 _123 123 123 123 123 _123 123 123 123 -123 -_123 -123 -123 -123 123.456 123.456 123.456 123.456 123.456 123.456 123.456 123.456 -123.456 -123.456 -123.456 -123.456 123456000000000 123456000000000 123456000000000 123456000000000 123456000000000 123456000000000 123456000000000 1.23456e-0?10 1.23456e-0?10 1.23456e-0?10 1.23456e-0?10 123 12.34 12340000000000 ######## # toke.c use warnings 'bareword' ; #line 25 "bar" $a = FRED:: ; no warnings 'bareword' ; #line 25 "bar" $a = FRED:: ; EXPECT Bareword "FRED::" refers to nonexistent package at bar line 25. ######## # toke.c use warnings 'ambiguous' ; sub time {} my $a = time() ; no warnings 'ambiguous' ; my $b = time() ; EXPECT Ambiguous call resolved as CORE::time(), qualify as such or use & at - line 4. ######## # toke.c use warnings ; eval <<'EOE'; # line 30 "foo" warn "yelp"; { $_ = " \x{123} " ; } EOE EXPECT yelp at foo line 30. ######## # toke.c my $a = rand + 4 ; EXPECT Warning: Use of "rand" without parentheses is ambiguous at - line 2. ######## # toke.c $^W = 0 ; my $a = rand + 4 ; { no warnings 'ambiguous' ; $a = rand + 4 ; use warnings 'ambiguous' ; $a = rand + 4 ; } $a = rand + 4 ; EXPECT Warning: Use of "rand" without parentheses is ambiguous at - line 3. Warning: Use of "rand" without parentheses is ambiguous at - line 8. Warning: Use of "rand" without parentheses is ambiguous at - line 10. ######## # toke.c sub fred {}; -fred ; EXPECT Ambiguous use of -fred resolved as -&fred() at - line 3. ######## # toke.c $^W = 0 ; sub fred {} ; -fred ; { no warnings 'ambiguous' ; -fred ; use warnings 'ambiguous' ; -fred ; } -fred ; EXPECT Ambiguous use of -fred resolved as -&fred() at - line 4. Ambiguous use of -fred resolved as -&fred() at - line 9. Ambiguous use of -fred resolved as -&fred() at - line 11. ######## # toke.c open FOO || time; EXPECT Precedence problem: open FOO should be open(FOO) at - line 2. ######## # toke.c (and [perl #16184]) open FOO => "<&0"; close FOO; EXPECT ######## # toke.c $^W = 0 ; open FOO || time; { no warnings 'precedence' ; open FOO || time; use warnings 'precedence' ; open FOO || time; } open FOO || time; EXPECT Precedence problem: open FOO should be open(FOO) at - line 3. Precedence problem: open FOO should be open(FOO) at - line 8. Precedence problem: open FOO should be open(FOO) at - line 10. ######## # toke.c $^W = 0 ; *foo *foo ; { no warnings 'ambiguous' ; *foo *foo ; use warnings 'ambiguous' ; *foo *foo ; } *foo *foo ; EXPECT Operator or semicolon missing before *foo at - line 3. Ambiguous use of * resolved as operator * at - line 3. Operator or semicolon missing before *foo at - line 8. Ambiguous use of * resolved as operator * at - line 8. Operator or semicolon missing before *foo at - line 10. Ambiguous use of * resolved as operator * at - line 10. ######## # toke.c use warnings 'misc' ; my $a = "\m" ; no warnings 'misc' ; $a = "\m" ; EXPECT Unrecognized escape \m passed through at - line 3. ######## # toke.c use warnings 'portable' ; my $a = 0b011111111111111111111111111111110 ; $a = 0b011111111111111111111111111111111 ; $a = 0b111111111111111111111111111111111 ; $a = 0x0fffffffe ; $a = 0x0ffffffff ; $a = 0x1ffffffff ; $a = 0037777777776 ; $a = 0037777777777 ; $a = 0047777777777 ; no warnings 'portable' ; $a = 0b011111111111111111111111111111110 ; $a = 0b011111111111111111111111111111111 ; $a = 0b111111111111111111111111111111111 ; $a = 0x0fffffffe ; $a = 0x0ffffffff ; $a = 0x1ffffffff ; $a = 0037777777776 ; $a = 0037777777777 ; $a = 0047777777777 ; EXPECT Binary number > 0b11111111111111111111111111111111 non-portable at - line 5. Hexadecimal number > 0xffffffff non-portable at - line 8. Octal number > 037777777777 non-portable at - line 11. ######## # toke.c use warnings 'overflow' ; my $a = 0b011111111111111111111111111111110 ; $a = 0b011111111111111111111111111111111 ; $a = 0b10000000000000000000000000000000000000000000000000000000000000000 ; $a = 0x0fffffffe ; $a = 0x0ffffffff ; $a = 0x10000000000000000 ; $a = 0037777777776 ; $a = 0037777777777 ; $a = 002000000000000000000000; no warnings 'overflow' ; $a = 0b011111111111111111111111111111110 ; $a = 0b011111111111111111111111111111111 ; $a = 0b10000000000000000000000000000000000000000000000000000000000000000 ; $a = 0x0fffffffe ; $a = 0x0ffffffff ; $a = 0x10000000000000000 ; $a = 0037777777776 ; $a = 0037777777777 ; $a = 002000000000000000000000; EXPECT Integer overflow in binary number at - line 5. Integer overflow in hexadecimal number at - line 8. Integer overflow in octal number at - line 11. ######## # toke.c BEGIN { $^C = 1; } use warnings 'misc'; dump; CORE::dump; EXPECT dump() better written as CORE::dump() at - line 4. - syntax OK ######## # toke.c use warnings 'misc'; use subs qw/dump/; sub dump { print "no warning for overriden dump\n"; } dump; EXPECT no warning for overriden dump ######## # toke.c use warnings 'ambiguous'; "@mjd_previously_unused_array"; no warnings 'ambiguous'; "@mjd_previously_unused_array"; EXPECT Possible unintended interpolation of @mjd_previously_unused_array in string at - line 3. ######## # toke.c # The \q should warn, the \_ should NOT warn. use warnings 'misc'; "foo" =~ /\q/; "bar" =~ /\_/; no warnings 'misc'; "foo" =~ /\q/; "bar" =~ /\_/; EXPECT Unrecognized escape \q passed through at - line 4. ######## # toke.c # 20020328 mjd-perl-patch+@plover.com at behest of jfriedl@yahoo.com use warnings 'regexp'; "foo" =~ /foo/c; "foo" =~ /foo/cg; no warnings 'regexp'; "foo" =~ /foo/c; "foo" =~ /foo/cg; EXPECT Use of /c modifier is meaningless without /g at - line 4. ######## # toke.c # 20020328 mjd-perl-patch+@plover.com at behest of jfriedl@yahoo.com use warnings 'regexp'; $_ = "ab" ; s/ab/ab/c; s/ab/ab/cg; no warnings 'regexp'; s/ab/ab/c; s/ab/ab/cg; EXPECT Use of /c modifier is meaningless in s/// at - line 5. Use of /c modifier is meaningless in s/// at - line 6. ######## -wa # toke.c # 20020414 mjd-perl-patch+@plover.com # -a flag should suppress these warnings print "@F\n"; EXPECT ######## -w # toke.c # 20020414 mjd-perl-patch+@plover.com # -a flag should suppress these warnings print "@F\n"; EXPECT Possible unintended interpolation of @F in string at - line 4. Name "main::F" used only once: possible typo at - line 4. ######## -wa # toke.c # 20020414 mjd-perl-patch+@plover.com EXPECT ######## # toke.c # 20020414 mjd-perl-patch+@plover.com # In 5.7.3, this emitted "Possible unintended interpolation" warnings use warnings 'ambiguous'; $s = "(@-)(@+)"; EXPECT ######## # toke.c # mandatory warning eval q/if ($a) { } elseif ($b) { }/; no warnings "syntax"; eval q/if ($a) { } elseif ($b) { }/; EXPECT elseif should be elsif at (eval 1) line 1. ######## # toke.c # mandatory warning eval q/5 6/; no warnings "syntax"; eval q/5 6/; EXPECT Number found where operator expected at (eval 1) line 1, near "5 6" (Missing operator before 6?) ######## # toke.c use warnings "syntax"; $_ = $a = 1; $a !=~ /1/; $a !=~ m#1#; $a !=~/1/; $a !=~ ?/?; $a !=~ y/1//; $a !=~ tr/1//; $a !=~ s/1//; $a != ~/1/; no warnings "syntax"; $a !=~ /1/; $a !=~ m#1#; $a !=~/1/; $a !=~ ?/?; $a !=~ y/1//; $a !=~ tr/1//; $a !=~ s/1//; EXPECT !=~ should be !~ at - line 4. !=~ should be !~ at - line 5. !=~ should be !~ at - line 6. !=~ should be !~ at - line 7. !=~ should be !~ at - line 8. !=~ should be !~ at - line 9. !=~ should be !~ at - line 10.