op.c AOK "my" variable %s masks earlier declaration in same scope my $x; my $x ; Variable "%s" may be unavailable sub x { my $x; sub y { $x } } Variable "%s" will not stay shared sub x { my $x; sub y { sub { $x } } } Found = in conditional, should be == 1 if $a = 1 ; Use of implicit split to @_ is deprecated split ; Use of implicit split to @_ is deprecated $a = split ; Useless use of time in void context Useless use of a variable in void context Useless use of a constant in void context time ; $a ; "abc" Useless use of sort in scalar context my $x = sort (2,1,3); Applying %s to %s will act on scalar(%s) my $a ; my @a = () ; my %a = () ; my $b = \@a ; my $c = \%a ; @a =~ /abc/ ; @a =~ s/a/b/ ; @a =~ tr/a/b/ ; @$b =~ /abc/ ; @$b =~ s/a/b/ ; @$b =~ tr/a/b/ ; %a =~ /abc/ ; %a =~ s/a/b/ ; %a =~ tr/a/b/ ; %$c =~ /abc/ ; %$c =~ s/a/b/ ; %$c =~ tr/a/b/ ; Parentheses missing around "my" list at -e line 1. my $a, $b = (1,2); Parentheses missing around "local" list at -e line 1. local $a, $b = (1,2); Bareword found in conditional at -e line 1. use warnings 'bareword'; my $x = print(ABC || 1); Value of %s may be \"0\"; use \"defined\" $x = 1 if $x = ; $x = 1 while $x = ; Subroutine fred redefined at -e line 1. sub fred{1;} sub fred{1;} Constant subroutine %s redefined sub fred() {1;} sub fred() {1;} Format FRED redefined at /tmp/x line 5. format FRED = . format FRED = . Array @%s missing the @ in argument %d of %s() push fred ; Hash %%%s missing the %% in argument %d of %s() keys joe ; Statement unlikely to be reached (Maybe you meant system() when you said exec()? exec "true" ; my $a defined(@array) is deprecated (Maybe you should just omit the defined()?) my @a ; defined @a ; defined (@a = (1,2,3)) ; defined(%hash) is deprecated (Maybe you should just omit the defined()?) my %h ; defined %h ; /---/ should probably be written as "---" join(/---/, @foo); %s() called too early to check prototype [Perl_peep] fred() ; sub fred ($$) {} Use of "package" with no arguments is deprecated package; Package `%s' not found (did you use the incorrect case?) Use of /g modifier is meaningless in split Mandatory Warnings ------------------ Prototype mismatch: [cv_ckproto] sub fred() ; sub fred($) {} %s never introduced [pad_leavemy] TODO Runaway prototype [newSUB] TODO oops: oopsAV [oopsAV] TODO oops: oopsHV [oopsHV] TODO __END__ # op.c use warnings 'misc' ; my $x ; my $x ; my $y = my $y ; no warnings 'misc' ; my $x ; my $y ; EXPECT "my" variable $x masks earlier declaration in same scope at - line 4. "my" variable $y masks earlier declaration in same statement at - line 5. ######## # op.c use warnings 'closure' ; sub x { my $x; sub y { $x } } EXPECT Variable "$x" will not stay shared at - line 7. ######## # op.c no warnings 'closure' ; sub x { my $x; sub y { $x } } EXPECT ######## # op.c use warnings 'closure' ; sub x { our $x; sub y { $x } } EXPECT ######## # op.c use warnings 'closure' ; sub x { my $x; sub y { sub { $x } } } EXPECT Variable "$x" may be unavailable at - line 6. ######## # op.c no warnings 'closure' ; sub x { my $x; sub y { sub { $x } } } EXPECT ######## # op.c use warnings 'syntax' ; 1 if $a = 1 ; no warnings 'syntax' ; 1 if $a = 1 ; EXPECT Found = in conditional, should be == at - line 3. ######## # op.c use warnings 'deprecated' ; split ; no warnings 'deprecated' ; split ; EXPECT Use of implicit split to @_ is deprecated at - line 3. ######## # op.c use warnings 'deprecated' ; $a = split ; no warnings 'deprecated' ; $a = split ; EXPECT Use of implicit split to @_ is deprecated at - line 3. ######## # op.c use warnings 'deprecated'; my (@foo, %foo); %main::foo->{"bar"}; %foo->{"bar"}; @main::foo->[23]; @foo->[23]; $main::foo = {}; %$main::foo->{"bar"}; $foo = {}; %$foo->{"bar"}; $main::foo = []; @$main::foo->[34]; $foo = []; @$foo->[34]; no warnings 'deprecated'; %main::foo->{"bar"}; %foo->{"bar"}; @main::foo->[23]; @foo->[23]; $main::foo = {}; %$main::foo->{"bar"}; $foo = {}; %$foo->{"bar"}; $main::foo = []; @$main::foo->[34]; $foo = []; @$foo->[34]; EXPECT Using a hash as a reference is deprecated at - line 4. Using a hash as a reference is deprecated at - line 5. Using an array as a reference is deprecated at - line 6. Using an array as a reference is deprecated at - line 7. Using a hash as a reference is deprecated at - line 8. Using a hash as a reference is deprecated at - line 9. Using an array as a reference is deprecated at - line 10. Using an array as a reference is deprecated at - line 11. ######## # op.c use warnings 'void' ; close STDIN ; 1 x 3 ; # OP_REPEAT # OP_GVSV wantarray ; # OP_WANTARRAY # OP_GV # OP_PADSV # OP_PADAV # OP_PADHV # OP_PADANY # OP_AV2ARYLEN ref ; # OP_REF \@a ; # OP_REFGEN \$a ; # OP_SREFGEN defined $a ; # OP_DEFINED hex $a ; # OP_HEX oct $a ; # OP_OCT length $a ; # OP_LENGTH substr $a,1 ; # OP_SUBSTR vec $a,1,2 ; # OP_VEC index $a,1,2 ; # OP_INDEX rindex $a,1,2 ; # OP_RINDEX sprintf $a ; # OP_SPRINTF $a[0] ; # OP_AELEM # OP_AELEMFAST @a[0] ; # OP_ASLICE #values %a ; # OP_VALUES #keys %a ; # OP_KEYS $a{0} ; # OP_HELEM @a{0} ; # OP_HSLICE unpack "a", "a" ; # OP_UNPACK pack $a,"" ; # OP_PACK join "" ; # OP_JOIN (@a)[0,1] ; # OP_LSLICE # OP_ANONLIST # OP_ANONHASH sort(1,2) ; # OP_SORT reverse(1,2) ; # OP_REVERSE # OP_RANGE # OP_FLIP (1 ..2) ; # OP_FLOP caller ; # OP_CALLER fileno STDIN ; # OP_FILENO eof STDIN ; # OP_EOF tell STDIN ; # OP_TELL readlink 1; # OP_READLINK time ; # OP_TIME localtime ; # OP_LOCALTIME gmtime ; # OP_GMTIME eval { getgrnam 1 }; # OP_GGRNAM eval { getgrgid 1 }; # OP_GGRGID eval { getpwnam 1 }; # OP_GPWNAM eval { getpwuid 1 }; # OP_GPWUID EXPECT Useless use of repeat (x) in void context at - line 3. Useless use of wantarray in void context at - line 5. Useless use of reference-type operator in void context at - line 12. Useless use of reference constructor in void context at - line 13. Useless use of single ref constructor in void context at - line 14. Useless use of defined operator in void context at - line 15. Useless use of hex in void context at - line 16. Useless use of oct in void context at - line 17. Useless use of length in void context at - line 18. Useless use of substr in void context at - line 19. Useless use of vec in void context at - line 20. Useless use of index in void context at - line 21. Useless use of rindex in void context at - line 22. Useless use of sprintf in void context at - line 23. Useless use of array element in void context at - line 24. Useless use of array slice in void context at - line 26. Useless use of hash element in void context at - line 29. Useless use of hash slice in void context at - line 30. Useless use of unpack in void context at - line 31. Useless use of pack in void context at - line 32. Useless use of join or string in void context at - line 33. Useless use of list slice in void context at - line 34. Useless use of sort in void context at - line 37. Useless use of reverse in void context at - line 38. Useless use of range (or flop) in void context at - line 41. Useless use of caller in void context at - line 42. Useless use of fileno in void context at - line 43. Useless use of eof in void context at - line 44. Useless use of tell in void context at - line 45. Useless use of readlink in void context at - line 46. Useless use of time in void context at - line 47. Useless use of localtime in void context at - line 48. Useless use of gmtime in void context at - line 49. Useless use of getgrnam in void context at - line 50. Useless use of getgrgid in void context at - line 51. Useless use of getpwnam in void context at - line 52. Useless use of getpwuid in void context at - line 53. ######## # op.c use warnings 'void' ; close STDIN ; my $x = sort (2,1,3); no warnings 'void' ; $x = sort (2,1,3); EXPECT Useless use of sort in scalar context at - line 3. ######## # op.c no warnings 'void' ; close STDIN ; 1 x 3 ; # OP_REPEAT # OP_GVSV wantarray ; # OP_WANTARRAY # OP_GV # OP_PADSV # OP_PADAV # OP_PADHV # OP_PADANY # OP_AV2ARYLEN ref ; # OP_REF \@a ; # OP_REFGEN \$a ; # OP_SREFGEN defined $a ; # OP_DEFINED hex $a ; # OP_HEX oct $a ; # OP_OCT length $a ; # OP_LENGTH substr $a,1 ; # OP_SUBSTR vec $a,1,2 ; # OP_VEC index $a,1,2 ; # OP_INDEX rindex $a,1,2 ; # OP_RINDEX sprintf $a ; # OP_SPRINTF $a[0] ; # OP_AELEM # OP_AELEMFAST @a[0] ; # OP_ASLICE #values %a ; # OP_VALUES #keys %a ; # OP_KEYS $a{0} ; # OP_HELEM @a{0} ; # OP_HSLICE unpack "a", "a" ; # OP_UNPACK pack $a,"" ; # OP_PACK join "" ; # OP_JOIN (@a)[0,1] ; # OP_LSLICE # OP_ANONLIST # OP_ANONHASH sort(1,2) ; # OP_SORT reverse(1,2) ; # OP_REVERSE # OP_RANGE # OP_FLIP (1 ..2) ; # OP_FLOP caller ; # OP_CALLER fileno STDIN ; # OP_FILENO eof STDIN ; # OP_EOF tell STDIN ; # OP_TELL readlink 1; # OP_READLINK time ; # OP_TIME localtime ; # OP_LOCALTIME gmtime ; # OP_GMTIME eval { getgrnam 1 }; # OP_GGRNAM eval { getgrgid 1 }; # OP_GGRGID eval { getpwnam 1 }; # OP_GPWNAM eval { getpwuid 1 }; # OP_GPWUID EXPECT ######## # op.c use warnings 'void' ; for (@{[0]}) { "$_" } # check warning isn't duplicated no warnings 'void' ; for (@{[0]}) { "$_" } # check warning isn't duplicated EXPECT Useless use of string in void context at - line 3. ######## # op.c use warnings 'void' ; use Config ; BEGIN { if ( ! $Config{d_telldir}) { print < ; no warnings 'misc' ; $x = 1 if $x = ; EXPECT Value of construct can be "0"; test with defined() at - line 4. ######## # op.c use warnings 'misc' ; opendir FH, "." ; $x = 1 if $x = readdir FH ; no warnings 'misc' ; $x = 1 if $x = readdir FH ; closedir FH ; EXPECT Value of readdir() operator can be "0"; test with defined() at - line 4. ######## # op.c use warnings 'misc' ; $x = 1 if $x = <*> ; no warnings 'misc' ; $x = 1 if $x = <*> ; EXPECT Value of glob construct can be "0"; test with defined() at - line 3. ######## # op.c use warnings 'misc' ; %a = (1,2,3,4) ; $x = 1 if $x = each %a ; no warnings 'misc' ; $x = 1 if $x = each %a ; EXPECT Value of each() operator can be "0"; test with defined() at - line 4. ######## # op.c use warnings 'misc' ; $x = 1 while $x = <*> and 0 ; no warnings 'misc' ; $x = 1 while $x = <*> and 0 ; EXPECT Value of glob construct can be "0"; test with defined() at - line 3. ######## # op.c use warnings 'misc' ; opendir FH, "." ; $x = 1 while $x = readdir FH and 0 ; no warnings 'misc' ; $x = 1 while $x = readdir FH and 0 ; closedir FH ; EXPECT Value of readdir() operator can be "0"; test with defined() at - line 4. ######## # op.c use warnings 'redefine' ; sub fred {} sub fred {} no warnings 'redefine' ; sub fred {} EXPECT Subroutine fred redefined at - line 4. ######## # op.c use warnings 'redefine' ; sub fred () { 1 } sub fred () { 1 } no warnings 'redefine' ; sub fred () { 1 } EXPECT Constant subroutine fred redefined at - line 4. ######## # op.c no warnings 'redefine' ; sub fred () { 1 } sub fred () { 2 } EXPECT Constant subroutine fred redefined at - line 4. ######## # op.c no warnings 'redefine' ; sub fred () { 1 } *fred = sub () { 2 }; EXPECT Constant subroutine main::fred redefined at - line 4. ######## # op.c use warnings 'redefine' ; format FRED = . format FRED = . no warnings 'redefine' ; format FRED = . EXPECT Format FRED redefined at - line 5. ######## # op.c use warnings 'deprecated' ; push FRED; no warnings 'deprecated' ; push FRED; EXPECT Array @FRED missing the @ in argument 1 of push() at - line 3. ######## # op.c use warnings 'deprecated' ; @a = keys FRED ; no warnings 'deprecated' ; @a = keys FRED ; EXPECT Hash %FRED missing the % in argument 1 of keys() at - line 3. ######## # op.c BEGIN { if ($^O eq 'MacOS') { print <