190 lines
2.8 KiB
Plaintext
190 lines
2.8 KiB
Plaintext
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Check existing $^W functionality
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__END__
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# warnable code, warnings disabled
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$a =+ 3 ;
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EXPECT
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########
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-w
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# warnable code, warnings enabled via command line switch
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$a =+ 3 ;
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EXPECT
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Reversed += operator at - line 3.
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Name "main::a" used only once: possible typo at - line 3.
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########
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#! perl -w
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# warnable code, warnings enabled via #! line
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$a =+ 3 ;
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EXPECT
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Reversed += operator at - line 3.
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Name "main::a" used only once: possible typo at - line 3.
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########
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# warnable code, warnings enabled via compile time $^W
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BEGIN { $^W = 1 }
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$a =+ 3 ;
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EXPECT
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Reversed += operator at - line 4.
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Name "main::a" used only once: possible typo at - line 4.
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########
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# compile-time warnable code, warnings enabled via runtime $^W
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# so no warning printed.
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$^W = 1 ;
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$a =+ 3 ;
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EXPECT
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########
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# warnable code, warnings enabled via runtime $^W
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$^W = 1 ;
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my $b ; chop $b ;
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EXPECT
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Use of uninitialized value in scalar chop at - line 4.
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########
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# warnings enabled at compile time, disabled at run time
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BEGIN { $^W = 1 }
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$^W = 0 ;
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my $b ; chop $b ;
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EXPECT
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########
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# warnings disabled at compile time, enabled at run time
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BEGIN { $^W = 0 }
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$^W = 1 ;
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my $b ; chop $b ;
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EXPECT
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Use of uninitialized value in scalar chop at - line 5.
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########
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-w
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--FILE-- abcd
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my $b ; chop $b ;
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1 ;
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--FILE--
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require "./abcd";
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EXPECT
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Use of uninitialized value in scalar chop at ./abcd line 1.
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########
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--FILE-- abcd
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my $b ; chop $b ;
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1 ;
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--FILE--
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#! perl -w
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require "./abcd";
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EXPECT
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Use of uninitialized value in scalar chop at ./abcd line 1.
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########
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--FILE-- abcd
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my $b ; chop $b ;
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1 ;
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--FILE--
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$^W =1 ;
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require "./abcd";
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EXPECT
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Use of uninitialized value in scalar chop at ./abcd line 1.
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########
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--FILE-- abcd
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$^W = 0;
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my $b ; chop $b ;
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1 ;
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--FILE--
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$^W =1 ;
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require "./abcd";
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EXPECT
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########
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--FILE-- abcd
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$^W = 1;
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1 ;
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--FILE--
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$^W =0 ;
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require "./abcd";
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my $b ; chop $b ;
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EXPECT
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Use of uninitialized value in scalar chop at - line 3.
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########
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$^W = 1;
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eval 'my $b ; chop $b ;' ;
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print $@ ;
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EXPECT
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Use of uninitialized value in scalar chop at (eval 1) line 1.
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########
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eval '$^W = 1;' ;
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print $@ ;
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my $b ; chop $b ;
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EXPECT
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Use of uninitialized value in scalar chop at - line 4.
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########
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eval {$^W = 1;} ;
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print $@ ;
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my $b ; chop $b ;
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EXPECT
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Use of uninitialized value in scalar chop at - line 4.
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########
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{
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local ($^W) = 1;
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}
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my $b ; chop $b ;
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EXPECT
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########
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my $a ; chop $a ;
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{
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local ($^W) = 1;
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my $b ; chop $b ;
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}
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my $c ; chop $c ;
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EXPECT
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Use of uninitialized value in scalar chop at - line 5.
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########
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-w
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-e undef
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EXPECT
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Use of uninitialized value in -e at - line 2.
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########
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$^W = 1 + 2 ;
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EXPECT
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########
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$^W = $a ;
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EXPECT
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########
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sub fred {}
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$^W = fred() ;
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EXPECT
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########
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sub fred { my $b ; chop $b ;}
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{ local $^W = 0 ;
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fred() ;
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}
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EXPECT
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########
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sub fred { my $b ; chop $b ;}
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{ local $^W = 1 ;
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fred() ;
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}
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EXPECT
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Use of uninitialized value in scalar chop at - line 2.
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