1 files changed, 320 insertions, 0 deletions
diff --git a/lib/warnings/sv b/lib/warnings/sv
new file mode 100644
index 0000000000..b3929e2210
--- /dev/null
+++ b/lib/warnings/sv
@@ -0,0 +1,320 @@
+  sv.c	
+
+  warn(warn_uninit);
+
+  warn(warn_uninit);
+
+  warn(warn_uninit);
+
+  warn(warn_uninit);
+
+  not_a_number(sv);
+
+  not_a_number(sv);
+
+  warn(warn_uninit);
+
+  not_a_number(sv);
+
+  warn(warn_uninit);
+
+  not_a_number(sv);
+
+  not_a_number(sv);
+
+  warn(warn_uninit);
+
+  warn(warn_uninit);
+
+  Subroutine %s redefined	
+
+  Invalid conversion in %s:
+
+  Undefined value assigned to typeglob
+
+  Possible Y2K bug: %d format string following '19'
+
+  Reference is already weak			[Perl_sv_rvweaken] <<TODO
+
+  Mandatory Warnings
+  ------------------
+  Malformed UTF-8 character [sv_pos_b2u] (not tested: difficult to produce
+                                          with perl now)
+
+  Mandatory Warnings TODO
+  ------------------
+    Attempt to free non-arena SV: 0x%lx		[del_sv]
+    Reference miscount in sv_replace()		[sv_replace]
+    Attempt to free unreferenced scalar		[sv_free]
+    Attempt to free temp prematurely: SV 0x%lx	[sv_free]
+    semi-panic: attempt to dup freed string	[newSVsv]
+    
+
+__END__
+# sv.c
+use integer ;
+use warnings 'uninitialized' ;
+$x = 1 + $a[0] ; # a
+no warnings 'uninitialized' ;
+$x = 1 + $b[0] ; # a
+EXPECT
+Use of uninitialized value in integer addition (+) at - line 4.
+########
+# sv.c (sv_2iv)
+package fred ;
+sub TIESCALAR { my $x ; bless \$x}
+sub FETCH { return undef }
+sub STORE { return 1 }
+package main ;
+tie $A, 'fred' ;
+use integer ;
+use warnings 'uninitialized' ;
+$A *= 2 ;
+no warnings 'uninitialized' ;
+$A *= 2 ;
+EXPECT
+Use of uninitialized value in integer multiplication (*) at - line 10.
+########
+# sv.c
+use integer ;
+use warnings 'uninitialized' ;
+my $x *= 2 ; #b 
+no warnings 'uninitialized' ;
+my $y *= 2 ; #b 
+EXPECT
+Use of uninitialized value in integer multiplication (*) at - line 4.
+########
+# sv.c (sv_2uv)
+package fred ;
+sub TIESCALAR { my $x ; bless \$x}
+sub FETCH { return undef }
+sub STORE { return 1 }
+package main ;
+tie $A, 'fred' ;
+use warnings 'uninitialized' ;
+$B = 0 ;
+$B |= $A ;
+no warnings 'uninitialized' ;
+$B = 0 ;
+$B |= $A ;
+EXPECT
+Use of uninitialized value in bitwise or (|) at - line 10.
+########
+# sv.c
+use warnings 'uninitialized' ;
+my $Y = 1 ; 
+my $x = 1 | $a[$Y] ;
+no warnings 'uninitialized' ;
+my $Y = 1 ; 
+$x = 1 | $b[$Y] ;
+EXPECT
+Use of uninitialized value in bitwise or (|) at - line 4.
+########
+# sv.c
+use warnings 'uninitialized' ;
+my $x *= 1 ; # d
+no warnings 'uninitialized' ;
+my $y *= 1 ; # d
+EXPECT
+Use of uninitialized value in multiplication (*) at - line 3.
+########
+# sv.c
+use warnings 'uninitialized' ;
+$x = 1 + $a[0] ; # e
+no warnings 'uninitialized' ;
+$x = 1 + $b[0] ; # e
+EXPECT
+Use of uninitialized value in addition (+) at - line 3.
+########
+# sv.c (sv_2nv)
+package fred ;
+sub TIESCALAR { my $x ; bless \$x}
+sub FETCH { return undef }
+sub STORE { return 1 }
+package main ;
+tie $A, 'fred' ;
+use warnings 'uninitialized' ;
+$A *= 2 ;
+no warnings 'uninitialized' ;
+$A *= 2 ;
+EXPECT
+Use of uninitialized value in multiplication (*) at - line 9.
+########
+# sv.c
+use warnings 'uninitialized' ;
+$x = $y + 1 ; # f
+no warnings 'uninitialized' ;
+$x = $z + 1 ; # f
+EXPECT
+Use of uninitialized value in addition (+) at - line 3.
+########
+# sv.c
+use warnings 'uninitialized' ;
+$x = chop undef ; # g
+no warnings 'uninitialized' ;
+$x = chop undef ; # g
+EXPECT
+Modification of a read-only value attempted at - line 3.
+########
+# sv.c
+use warnings 'uninitialized' ;
+$x = chop $y ; # h
+no warnings 'uninitialized' ;
+$x = chop $z ; # h
+EXPECT
+Use of uninitialized value in scalar chop at - line 3.
+########
+# sv.c (sv_2pv)
+package fred ;
+sub TIESCALAR { my $x ; bless \$x}
+sub FETCH { return undef }
+sub STORE { return 1 }
+package main ;
+tie $A, 'fred' ;
+use warnings 'uninitialized' ;
+$B = "" ;
+$B .= $A ;
+no warnings 'uninitialized' ;
+$C = "" ;
+$C .= $A ;
+EXPECT
+Use of uninitialized value in concatenation (.) or string at - line 10.
+########
+# sv.c 
+use warnings 'numeric' ;
+sub TIESCALAR{bless[]} ; 
+sub FETCH {"def"} ; 
+tie $a,"main" ; 
+my $b = 1 + $a;
+no warnings 'numeric' ;
+my $c = 1 + $a;
+EXPECT
+Argument "def" isn't numeric in addition (+) at - line 6.
+########
+# sv.c
+use warnings 'numeric' ;
+my $x = 1 + "def" ;
+no warnings 'numeric' ;
+my $z = 1 + "def" ;
+EXPECT
+Argument "def" isn't numeric in addition (+) at - line 3.
+########
+# sv.c
+use warnings 'numeric' ;
+my $a = "def" ;
+my $x = 1 + $a ;
+no warnings 'numeric' ;
+my $y = 1 + $a ;
+EXPECT
+Argument "def" isn't numeric in addition (+) at - line 4.
+########
+# sv.c
+use warnings 'numeric' ; use integer ;
+my $a = "def" ;
+my $x = 1 + $a ;
+no warnings 'numeric' ;
+my $z = 1 + $a ;
+EXPECT
+Argument "def" isn't numeric in integer addition (+) at - line 4.
+########
+# sv.c
+use warnings 'numeric' ;
+my $x = 1 & "def" ;
+no warnings 'numeric' ;
+my $z = 1 & "def" ;
+EXPECT
+Argument "def" isn't numeric in bitwise and (&) at - line 3.
+########
+# sv.c
+use warnings 'numeric' ;
+my $x = pack i => "def" ;
+no warnings 'numeric' ;
+my $z = pack i => "def" ;
+EXPECT
+Argument "def" isn't numeric in pack at - line 3.
+########
+# sv.c
+use warnings 'numeric' ; 
+my $a = "d\0f" ;
+my $x = 1 + $a ;
+no warnings 'numeric' ;
+my $z = 1 + $a ;
+EXPECT
+Argument "d\0f" isn't numeric in addition (+) at - line 4.
+########
+# sv.c
+use warnings 'redefine' ;
+sub fred {}  
+sub joe {} 
+*fred = \&joe ;
+no warnings 'redefine' ;
+sub jim {} 
+*jim = \&joe ;
+EXPECT
+Subroutine fred redefined at - line 5.
+########
+# sv.c
+use warnings 'printf' ;
+open F, ">".($^O eq 'VMS'? 'NL:' : '/dev/null') ;
+printf F "%z\n" ;
+my $a = sprintf "%z" ;
+printf F "%" ;
+$a = sprintf "%" ;
+printf F "%\x02" ;
+$a = sprintf "%\x02" ;
+no warnings 'printf' ;
+printf F "%z\n" ;
+$a = sprintf "%z" ;
+printf F "%" ;
+$a = sprintf "%" ;
+printf F "%\x02" ;
+$a = sprintf "%\x02" ;
+EXPECT
+Invalid conversion in sprintf: "%z" at - line 5.
+Invalid conversion in sprintf: end of string at - line 7.
+Invalid conversion in sprintf: "%\002" at - line 9.
+Invalid conversion in printf: "%z" at - line 4.
+Invalid conversion in printf: end of string at - line 6.
+Invalid conversion in printf: "%\002" at - line 8.
+########
+# sv.c
+use warnings 'misc' ;
+*a = undef ;
+no warnings 'misc' ;
+*b = undef ;
+EXPECT
+Undefined value assigned to typeglob at - line 3.
+########
+# sv.c
+use warnings 'y2k';
+use Config;
+BEGIN {
+    unless ($Config{ccflags} =~ /Y2KWARN/) {
+	print "SKIPPED\n# perl not built with -DPERL_Y2KWARN";
+	exit 0;
+    }
+    $|=1;
+}
+my $x;
+my $yy = 78;
+$x     = printf  "19%02d\n", $yy;
+$x     = sprintf "#19%02d\n", $yy;
+$x     = printf  " 19%02d\n", 78;
+$x     = sprintf "19%02d\n", 78;
+$x     = printf  "319%02d\n", $yy;
+$x     = sprintf "319%02d\n", $yy;
+no warnings 'y2k';
+$x     = printf  "19%02d\n", $yy;
+$x     = sprintf "19%02d\n", $yy;
+$x     = printf  "19%02d\n", 78;
+$x     = sprintf "19%02d\n", 78;
+EXPECT
+Possible Y2K bug: %d format string following '19' at - line 16.
+Possible Y2K bug: %d format string following '19' at - line 13.
+1978
+Possible Y2K bug: %d format string following '19' at - line 14.
+Possible Y2K bug: %d format string following '19' at - line 15.
+ 1978
+31978
+1978
+1978