pub unsafe extern "C" fn Perl_fp_dup(
my_perl: *mut PerlInterpreter,
fp: *mut PerlIO,
type_: c_char,
param: *mut CLONE_PARAMS,
) -> *mut PerlIO
pub unsafe extern "C" fn Perl_fp_dup(
my_perl: *mut PerlInterpreter,
fp: *mut PerlIO,
type_: c_char,
param: *mut CLONE_PARAMS,
) -> *mut PerlIO