3 perlintern - autogenerated documentation of purely B<internal>
8 This file is the autogenerated documentation of functions in the
9 Perl interpreter that are documented using Perl's internal documentation
10 format but are not marked as part of the Perl API. In other words,
11 B<they are not for use in extensions>!
17 Returns C<TRUE> if given the name of a magical GV.
19 Currently only useful internally when determining if a GV should be
20 created even in rvalue contexts.
22 C<flags> is not used at present but available for future extension to
23 allow selecting particular classes of magical variable.
25 bool is_gv_magical(char *name, STRLEN len, U32 flags)
32 True if this op will be the return value of an lvalue subroutine
39 When Perl is run in debugging mode, with the B<-d> switch, this SV is a
40 boolean which indicates whether subs are being single-stepped.
41 Single-stepping is automatically turned on after every step. This is the C
42 variable which corresponds to Perl's $DB::single variable. See
48 Found in file intrpvar.h
52 When Perl is run in debugging mode, with the B<-d> switch, this GV contains
53 the SV which holds the name of the sub being debugged. This is the C
54 variable which corresponds to Perl's $DB::sub variable. See
60 Found in file intrpvar.h
64 Trace variable used when Perl is run in debugging mode, with the B<-d>
65 switch. This is the C variable which corresponds to Perl's $DB::trace
66 variable. See C<PL_DBsingle>.
71 Found in file intrpvar.h
75 The C variable which corresponds to Perl's $^W warning variable.
80 Found in file intrpvar.h
84 The GV which was last used for a filehandle input operation. (C<< <FH> >>)
89 Found in file thrdvar.h
93 The output field separator - C<$,> in Perl space.
98 Found in file thrdvar.h
102 The input record separator - C<$/> in Perl space.
107 Found in file thrdvar.h
113 The autodocumentation system was originally added to the Perl core by
114 Benjamin Stuhl. Documentation is by whoever was kind enough to
115 document their functions.
119 perlguts(1), perlapi(1)