Re: [perl #36130] chr(-1) should probably return undef

[p5sagit/p5-mst-13.2.git] / proto.h

diff --git a/proto.h b/proto.h
index 8718035..1b9c6b6 100644 (file)
--- a/proto.h
+++ b/proto.h
@@ -57,7 +57,9 @@ PERL_CALLCONV Malloc_t        Perl_realloc(Malloc_t where, MEM_SIZE nbytes)
 
 PERL_CALLCONV Free_t   Perl_mfree(Malloc_t where);
 #if defined(MYMALLOC)
-PERL_CALLCONV MEM_SIZE Perl_malloced_size(void *p);
+PERL_CALLCONV MEM_SIZE Perl_malloced_size(void *p)
+                       __attribute__warn_unused_result__;
+
 #endif
 
 PERL_CALLCONV void*    Perl_get_context(void);
@@ -111,6 +113,7 @@ PERL_CALLCONV SV*   Perl_av_shift(pTHX_ AV* ar)
 PERL_CALLCONV SV**     Perl_av_store(pTHX_ AV* ar, I32 key, SV* val);
 PERL_CALLCONV void     Perl_av_undef(pTHX_ AV* ar);
 PERL_CALLCONV void     Perl_av_unshift(pTHX_ AV* ar, I32 num);
+PERL_CALLCONV SV**     Perl_av_arylen_p(pTHX_ AV* av);
 PERL_CALLCONV OP*      Perl_bind_match(pTHX_ I32 type, OP* left, OP* pat)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_2)
@@ -452,12 +455,18 @@ PERL_CALLCONV void        Perl_init_stacks(pTHX);
 PERL_CALLCONV void     Perl_init_tm(pTHX_ struct tm *ptm);
 PERL_CALLCONV U32      Perl_intro_my(pTHX);
 PERL_CALLCONV char*    Perl_instr(pTHX_ const char* big, const char* little)
+                       __attribute__warn_unused_result__
                        __attribute__pure__
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 
-PERL_CALLCONV bool     Perl_io_close(pTHX_ IO* io, bool not_implicit);
-PERL_CALLCONV OP*      Perl_invert(pTHX_ OP* cmd);
+PERL_CALLCONV bool     Perl_io_close(pTHX_ IO* io, bool not_implicit)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_invert(pTHX_ OP* cmd)
+                       __attribute__warn_unused_result__;
+
 PERL_CALLCONV bool     Perl_is_gv_magical(pTHX_ const char *name, STRLEN len, U32 flags)
                        __attribute__warn_unused_result__;
 
@@ -615,51 +624,67 @@ PERL_CALLCONV bool        Perl_is_utf8_string_loc(pTHX_ const U8 *s, STRLEN len, const
                        __attribute__nonnull__(pTHX_3);
 
 PERL_CALLCONV bool     Perl_is_utf8_alnum(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV bool     Perl_is_utf8_alnumc(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV bool     Perl_is_utf8_idfirst(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV bool     Perl_is_utf8_idcont(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV bool     Perl_is_utf8_alpha(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV bool     Perl_is_utf8_ascii(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV bool     Perl_is_utf8_space(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV bool     Perl_is_utf8_cntrl(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV bool     Perl_is_utf8_digit(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV bool     Perl_is_utf8_graph(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV bool     Perl_is_utf8_upper(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV bool     Perl_is_utf8_lower(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV bool     Perl_is_utf8_print(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV bool     Perl_is_utf8_punct(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV bool     Perl_is_utf8_xdigit(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV bool     Perl_is_utf8_mark(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV OP*      Perl_jmaybe(pTHX_ OP* arg)
@@ -732,9 +757,6 @@ PERL_CALLCONV int   Perl_magic_setamagic(pTHX_ SV* sv, MAGIC* mg);
 PERL_CALLCONV int      Perl_magic_setarylen(pTHX_ SV* sv, MAGIC* mg);
 PERL_CALLCONV int      Perl_magic_setbm(pTHX_ SV* sv, MAGIC* mg);
 PERL_CALLCONV int      Perl_magic_setdbline(pTHX_ SV* sv, MAGIC* mg);
-#if defined(USE_LOCALE_COLLATE)
-PERL_CALLCONV int      Perl_magic_setcollxfrm(pTHX_ SV* sv, MAGIC* mg);
-#endif
 PERL_CALLCONV int      Perl_magic_setdefelem(pTHX_ SV* sv, MAGIC* mg);
 PERL_CALLCONV int      Perl_magic_setenv(pTHX_ SV* sv, MAGIC* mg);
 PERL_CALLCONV int      Perl_magic_setfm(pTHX_ SV* sv, MAGIC* mg);
@@ -757,6 +779,7 @@ PERL_CALLCONV int   Perl_magic_wipepack(pTHX_ SV* sv, MAGIC* mg);
 PERL_CALLCONV void     Perl_magicname(pTHX_ const char* sym, const char* name, I32 namlen);
 PERL_CALLCONV void     Perl_markstack_grow(pTHX);
 #if defined(USE_LOCALE_COLLATE)
+PERL_CALLCONV int      Perl_magic_setcollxfrm(pTHX_ SV* sv, MAGIC* mg);
 PERL_CALLCONV char*    Perl_mem_collxfrm(pTHX_ const char* s, STRLEN len, STRLEN* xlen);
 #endif
 PERL_CALLCONV SV*      Perl_mess(pTHX_ const char* pat, ...)
@@ -1010,6 +1033,10 @@ PERL_CALLCONV SV*        Perl_newSVpvn(pTHX_ const char* s, STRLEN len)
                        __attribute__malloc__
                        __attribute__warn_unused_result__;
 
+PERL_CALLCONV SV*      Perl_newSVhek(pTHX_ const HEK *hek)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__;
+
 PERL_CALLCONV SV*      Perl_newSVpvn_share(pTHX_ const char* s, I32 len, U32 hash)
                        __attribute__malloc__
                        __attribute__warn_unused_result__;
@@ -1075,9 +1102,11 @@ PERL_CALLCONV PADOFFSET  Perl_pad_findmy(pTHX_ const char* name)
 
 PERL_CALLCONV PADOFFSET        Perl_find_rundefsvoffset(pTHX);
 PERL_CALLCONV OP*      Perl_oopsAV(pTHX_ OP* o)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV OP*      Perl_oopsHV(pTHX_ OP* o)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV void     Perl_pad_leavemy(pTHX);
@@ -1181,7 +1210,10 @@ PERL_CALLCONV I32        Perl_regexec_flags(pTHX_ regexp* prog, char* stringarg, char*
                        __attribute__nonnull__(pTHX_3)
                        __attribute__nonnull__(pTHX_4);
 
-PERL_CALLCONV regnode* Perl_regnext(pTHX_ regnode* p);
+PERL_CALLCONV regnode* Perl_regnext(pTHX_ regnode* p)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV void     Perl_regprop(pTHX_ SV* sv, const regnode* o);
 PERL_CALLCONV void     Perl_repeatcpy(pTHX_ char* to, const char* from, I32 len, I32 count)
                        __attribute__nonnull__(pTHX_1)
@@ -1404,7 +1436,8 @@ PERL_CALLCONV I32 Perl_sv_cmp_locale(pTHX_ SV* sv1, SV* sv2)
 
 #if defined(USE_LOCALE_COLLATE)
 PERL_CALLCONV char*    Perl_sv_collxfrm(pTHX_ SV* sv, STRLEN* nxp)
-                       __attribute__nonnull__(pTHX_1);
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
 
 #endif
 PERL_CALLCONV OP*      Perl_sv_compile_2op(pTHX_ SV* sv, OP** startp, const char* code, PAD** padp)
@@ -1476,8 +1509,12 @@ PERL_CALLCONV SV*        Perl_sv_newmortal(pTHX)
 
 PERL_CALLCONV SV*      Perl_sv_newref(pTHX_ SV* sv);
 PERL_CALLCONV char*    Perl_sv_peek(pTHX_ SV* sv);
-PERL_CALLCONV void     Perl_sv_pos_u2b(pTHX_ SV* sv, I32* offsetp, I32* lenp);
-PERL_CALLCONV void     Perl_sv_pos_b2u(pTHX_ SV* sv, I32* offsetp);
+PERL_CALLCONV void     Perl_sv_pos_u2b(pTHX_ SV* sv, I32* offsetp, I32* lenp)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_sv_pos_b2u(pTHX_ SV* sv, I32* offsetp)
+                       __attribute__nonnull__(pTHX_2);
+
 /* PERL_CALLCONV char* sv_pvn_force(pTHX_ SV* sv, STRLEN* lp); */
 PERL_CALLCONV char*    Perl_sv_pvutf8n_force(pTHX_ SV* sv, STRLEN* lp);
 PERL_CALLCONV char*    Perl_sv_pvbyten_force(pTHX_ SV* sv, STRLEN* lp);
@@ -1492,13 +1529,17 @@ PERL_CALLCONV void      Perl_sv_replace(pTHX_ SV* sv, SV* nsv)
                        __attribute__nonnull__(pTHX_2);
 
 PERL_CALLCONV void     Perl_sv_report_used(pTHX);
-PERL_CALLCONV void     Perl_sv_reset(pTHX_ const char* s, HV* stash);
+PERL_CALLCONV void     Perl_sv_reset(pTHX_ const char* s, HV* stash)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV void     Perl_sv_setpvf(pTHX_ SV* sv, const char* pat, ...)
                        __attribute__format__(__printf__,pTHX_2,pTHX_3);
 
 PERL_CALLCONV void     Perl_sv_vsetpvf(pTHX_ SV* sv, const char* pat, va_list* args);
 PERL_CALLCONV void     Perl_sv_setiv(pTHX_ SV* sv, IV num);
-PERL_CALLCONV void     Perl_sv_setpviv(pTHX_ SV* sv, IV num);
+PERL_CALLCONV void     Perl_sv_setpviv(pTHX_ SV* sv, IV num)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV void     Perl_sv_setuv(pTHX_ SV* sv, UV num);
 PERL_CALLCONV void     Perl_sv_setnv(pTHX_ SV* sv, NV num);
 PERL_CALLCONV SV*      Perl_sv_setref_iv(pTHX_ SV* rv, const char* classname, IV iv);
@@ -1676,7 +1717,9 @@ PERL_CALLCONV void        Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...)
 
 PERL_CALLCONV void     Perl_sv_vsetpvf_mg(pTHX_ SV* sv, const char* pat, va_list* args);
 PERL_CALLCONV void     Perl_sv_setiv_mg(pTHX_ SV *sv, IV i);
-PERL_CALLCONV void     Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv);
+PERL_CALLCONV void     Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV void     Perl_sv_setuv_mg(pTHX_ SV *sv, UV u);
 PERL_CALLCONV void     Perl_sv_setnv_mg(pTHX_ SV *sv, NV num);
 PERL_CALLCONV void     Perl_sv_setpv_mg(pTHX_ SV *sv, const char *ptr);
@@ -1728,6 +1771,7 @@ PERL_CALLCONV PERL_SI*    Perl_si_dup(pTHX_ PERL_SI* si, CLONE_PARAMS* param);
 PERL_CALLCONV ANY*     Perl_ss_dup(pTHX_ PerlInterpreter* proto_perl, CLONE_PARAMS* param);
 PERL_CALLCONV void*    Perl_any_dup(pTHX_ void* v, PerlInterpreter* proto_perl);
 PERL_CALLCONV HE*      Perl_he_dup(pTHX_ HE* e, bool shared, CLONE_PARAMS* param);
+PERL_CALLCONV HEK*     Perl_hek_dup(pTHX_ HEK* e, CLONE_PARAMS* param);
 PERL_CALLCONV REGEXP*  Perl_re_dup(pTHX_ REGEXP* r, CLONE_PARAMS* param);
 PERL_CALLCONV PerlIO*  Perl_fp_dup(pTHX_ PerlIO* fp, char type, CLONE_PARAMS* param);
 PERL_CALLCONV DIR*     Perl_dirp_dup(pTHX_ DIR* dp);
@@ -1735,9 +1779,6 @@ PERL_CALLCONV GP* Perl_gp_dup(pTHX_ GP* gp, CLONE_PARAMS* param);
 PERL_CALLCONV MAGIC*   Perl_mg_dup(pTHX_ MAGIC* mg, CLONE_PARAMS* param);
 PERL_CALLCONV SV*      Perl_sv_dup(pTHX_ SV* sstr, CLONE_PARAMS* param);
 PERL_CALLCONV void     Perl_rvpv_dup(pTHX_ SV* dstr, SV *sstr, CLONE_PARAMS* param);
-#if defined(HAVE_INTERP_INTERN)
-PERL_CALLCONV void     Perl_sys_intern_dup(pTHX_ struct interp_intern* src, struct interp_intern* dst);
-#endif
 PERL_CALLCONV PTR_TBL_t*       Perl_ptr_table_new(pTHX);
 PERL_CALLCONV void*    Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv)
                        __attribute__nonnull__(pTHX_1)
@@ -1751,6 +1792,12 @@ PERL_CALLCONV void       Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl)
 
 PERL_CALLCONV void     Perl_ptr_table_clear(pTHX_ PTR_TBL_t *tbl);
 PERL_CALLCONV void     Perl_ptr_table_free(pTHX_ PTR_TBL_t *tbl);
+#  if defined(HAVE_INTERP_INTERN)
+PERL_CALLCONV void     Perl_sys_intern_dup(pTHX_ struct interp_intern* src, struct interp_intern* dst)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+#  endif
 #endif
 #if defined(HAVE_INTERP_INTERN)
 PERL_CALLCONV void     Perl_sys_intern_clear(pTHX);
@@ -1806,46 +1853,275 @@ STATIC void    S_require_errno(pTHX_ GV *gv)
 #if defined(PERL_IN_HV_C) || defined(PERL_DECL_PROT)
 STATIC void    S_hsplit(pTHX_ HV *hv);
 STATIC void    S_hfreeentries(pTHX_ HV *hv);
-STATIC HE*     S_new_he(pTHX);
-STATIC void    S_del_he(pTHX_ HE *p);
-STATIC HEK*    S_save_hek_flags(pTHX_ const char *str, I32 len, U32 hash, int flags);
-STATIC void    S_hv_magic_check(pTHX_ HV *hv, bool *needs_copy, bool *needs_store);
-STATIC void    S_unshare_hek_or_pvn(pTHX_ HEK* hek, const char* sv, I32 len, U32 hash);
-STATIC HEK*    S_share_hek_flags(pTHX_ const char* sv, I32 len, U32 hash, int flags);
+STATIC HE*     S_new_he(pTHX)
+                       __attribute__warn_unused_result__;
+
+STATIC void    S_del_he(pTHX_ HE *p)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC HEK*    S_save_hek_flags(pTHX_ const char *str, I32 len, U32 hash, int flags)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC void    S_hv_magic_check(pTHX_ HV *hv, bool *needs_copy, bool *needs_store)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+STATIC void    S_unshare_hek_or_pvn(pTHX_ HEK* hek, const char* str, I32 len, U32 hash);
+STATIC HE*     S_share_hek_flags(pTHX_ const char* sv, I32 len, U32 hash, int flags)
+                       __attribute__warn_unused_result__;
+
 STATIC void    S_hv_notallowed(pTHX_ int flags, const char *key, I32 klen, const char *msg)
-                       __attribute__noreturn__;
+                       __attribute__noreturn__
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_4);
+
+STATIC struct xpvhv_aux*       S_hv_auxinit(pTHX_ HV *hv)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__;
 
 #endif
 
 #if defined(PERL_IN_MG_C) || defined(PERL_DECL_PROT)
-STATIC void    S_save_magic(pTHX_ I32 mgs_ix, SV *sv);
-STATIC int     S_magic_methpack(pTHX_ SV *sv, const MAGIC *mg, const char *meth);
-STATIC int     S_magic_methcall(pTHX_ SV *sv, const MAGIC *mg, const char *meth, I32 f, int n, SV *val);
+STATIC void    S_save_magic(pTHX_ I32 mgs_ix, SV *sv)
+                       __attribute__nonnull__(pTHX_2);
+
+STATIC int     S_magic_methpack(pTHX_ SV *sv, const MAGIC *mg, const char *meth)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+STATIC int     S_magic_methcall(pTHX_ SV *sv, const MAGIC *mg, const char *meth, I32 f, int n, SV *val)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
 #endif
 
 #if defined(PERL_IN_OP_C) || defined(PERL_DECL_PROT)
-STATIC I32     S_list_assignment(pTHX_ const OP *o);
-STATIC void    S_bad_type(pTHX_ I32 n, const char *t, const char *name, const OP *kid);
-STATIC void    S_cop_free(pTHX_ COP *cop);
+PERL_CALLCONV OP*      Perl_ck_anoncode(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_bitop(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_concat(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_defined(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_delete(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_die(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_eof(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_eval(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_exec(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_exists(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_exit(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_ftst(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_fun(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_glob(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_grep(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_index(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_join(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_lengthconst(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_lfun(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_listiob(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_match(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_method(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_null(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_open(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_repeat(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_require(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_retarget(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_return(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_rfun(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_rvconst(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_sassign(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_select(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_shift(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_sort(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_spair(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_split(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_subr(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_substr(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_svconst(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_trunc(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV OP*      Perl_ck_unpack(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC bool    S_is_handle_constructor(pTHX_ const OP *o, I32 numargs)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC I32     S_is_list_assignment(pTHX_ const OP *o)
+                       __attribute__warn_unused_result__;
+
+STATIC void    S_cop_free(pTHX_ COP *cop)
+                       __attribute__nonnull__(pTHX_1);
+
 STATIC OP*     S_modkids(pTHX_ OP *o, I32 type);
-STATIC void    S_no_bareword_allowed(pTHX_ const OP *o);
-STATIC OP*     S_no_fh_allowed(pTHX_ OP *o);
-STATIC OP*     S_scalarboolean(pTHX_ OP *o);
-STATIC OP*     S_too_few_arguments(pTHX_ OP *o, const char* name);
-STATIC OP*     S_too_many_arguments(pTHX_ OP *o, const char* name);
-STATIC OP*     S_newDEFSVOP(pTHX);
-STATIC OP*     S_new_logop(pTHX_ I32 type, I32 flags, OP **firstp, OP **otherp);
-STATIC void    S_simplify_sort(pTHX_ OP *o);
-STATIC bool    S_is_handle_constructor(pTHX_ const OP *o, I32 argnum);
+STATIC OP*     S_scalarboolean(pTHX_ OP *o)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC OP*     S_newDEFSVOP(pTHX)
+                       __attribute__warn_unused_result__;
+
+STATIC OP*     S_new_logop(pTHX_ I32 type, I32 flags, OP **firstp, OP **otherp)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
+
+STATIC void    S_simplify_sort(pTHX_ OP *o)
+                       __attribute__nonnull__(pTHX_1);
+
 STATIC char*   S_gv_ename(pTHX_ GV *gv);
 STATIC bool    S_scalar_mod_type(pTHX_ const OP *o, I32 type);
 STATIC OP *    S_my_kid(pTHX_ OP *o, OP *attrs, OP **imopsp);
 STATIC OP *    S_dup_attrlist(pTHX_ OP *o);
 STATIC void    S_apply_attrs(pTHX_ HV *stash, SV *target, OP *attrs, bool for_my);
 STATIC void    S_apply_attrs_my(pTHX_ HV *stash, OP *target, OP *attrs, OP **imopsp);
+STATIC void    S_bad_type(pTHX_ I32 n, const char *t, const char *name, const OP *kid)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
+
+STATIC void    S_no_bareword_allowed(pTHX_ const OP *o)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC OP*     S_no_fh_allowed(pTHX_ OP *o)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC OP*     S_too_few_arguments(pTHX_ OP *o, const char* name)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+STATIC OP*     S_too_many_arguments(pTHX_ OP *o, const char* name)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
 #endif
 #if defined(PL_OP_SLAB_ALLOC)
-PERL_CALLCONV void*    Perl_Slab_Alloc(pTHX_ int m, size_t sz);
+PERL_CALLCONV void*    Perl_Slab_Alloc(pTHX_ int m, size_t sz)
+                       __attribute__warn_unused_result__;
+
 PERL_CALLCONV void     Perl_Slab_Free(pTHX_ void *op);
 #endif
 
@@ -1895,6 +2171,7 @@ STATIC bool       S_next_symbol(pTHX_ struct tempsym* symptr)
                        __attribute__nonnull__(pTHX_1);
 
 STATIC SV*     S_is_an_int(pTHX_ const char *s, STRLEN l)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 STATIC int     S_div128(pTHX_ SV *pnum, bool *done)
@@ -1939,10 +2216,21 @@ STATIC SV*      S_method_common(pTHX_ SV* meth, U32* hashp);
 #endif
 
 #if defined(PERL_IN_PP_SYS_C) || defined(PERL_DECL_PROT)
-STATIC OP*     S_doform(pTHX_ CV *cv, GV *gv, OP *retop);
-STATIC int     S_emulate_eaccess(pTHX_ const char* path, Mode_t mode);
+STATIC OP*     S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+STATIC int     S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
+                       __attribute__noreturn__
+                       __attribute__nonnull__(pTHX_1);
+
 #  if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
-STATIC int     S_dooneliner(pTHX_ char *cmd, char *filename);
+STATIC int     S_dooneliner(pTHX_ const char *cmd, const char *filename)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
 #  endif
 #endif
 
@@ -1962,11 +2250,13 @@ STATIC regnode* S_regpiece(pTHX_ struct RExC_state_t*, I32 *);
 STATIC void    S_reginsert(pTHX_ struct RExC_state_t*, U8, regnode *);
 STATIC void    S_regoptail(pTHX_ struct RExC_state_t*, regnode *, regnode *);
 STATIC void    S_regtail(pTHX_ struct RExC_state_t*, regnode *, regnode *);
-STATIC char*   S_regwhite(pTHX_ char *, char *);
+STATIC char*   S_regwhite(pTHX_ char *p, const char *e);
 STATIC char*   S_nextchar(pTHX_ struct RExC_state_t*);
 #  ifdef DEBUGGING
 STATIC regnode*        S_dumpuntil(pTHX_ regnode *start, regnode *node, regnode *last, SV* sv, I32 l);
-STATIC void    S_put_byte(pTHX_ SV* sv, int c);
+STATIC void    S_put_byte(pTHX_ SV* sv, int c)
+                       __attribute__nonnull__(pTHX_1);
+
 #  endif
 STATIC void    S_scan_commit(pTHX_ struct RExC_state_t*, struct scan_data_t *data);
 STATIC void    S_cl_anything(pTHX_ struct RExC_state_t*, struct regnode_charclass_class *cl);
@@ -2114,7 +2404,7 @@ STATIC bool       S_utf8_mg_pos_init(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i
                        __attribute__nonnull__(pTHX_7);
 
 #if defined(PERL_COPY_ON_WRITE)
-STATIC void    S_sv_release_COW(pTHX_ SV *sv, char *pvx, STRLEN cur, STRLEN len, U32 hash, SV *after);
+STATIC void    S_sv_release_COW(pTHX_ SV *sv, const char *pvx, STRLEN cur, STRLEN len, U32 hash, SV *after);
 #endif
 #endif
 
@@ -2202,6 +2492,12 @@ STATIC SV*       S_mess_alloc(pTHX);
 STATIC NV      S_mulexp10(NV value, I32 exponent);
 #endif
 
+#if defined(PERL_IN_UTF8_C) || defined(PERL_DECL_PROT)
+STATIC STRLEN  S_is_utf8_char_slow(pTHX_ const U8 *s, const STRLEN len)
+                       __attribute__nonnull__(pTHX_1);
+
+#endif
+
 START_EXTERN_C
 
 PERL_CALLCONV void     Perl_sv_setsv_flags(pTHX_ SV* dsv, SV* ssv, I32 flags)
@@ -2304,18 +2600,43 @@ STATIC SV*      S_hv_delete_common(pTHX_ HV* tb, SV* key_sv, const char* key, STRLEN
 STATIC HE*     S_hv_fetch_common(pTHX_ HV* tb, SV* key_sv, const char* key, STRLEN klen, int flags, int action, SV* val, U32 hash);
 #endif
 
-PERL_CALLCONV void     Perl_hv_clear_placeholders(pTHX_ HV* hb);
+PERL_CALLCONV SV*      Perl_hv_scalar(pTHX_ HV* hv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV I32*     Perl_hv_riter_p(pTHX_ HV* hv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV HE**     Perl_hv_eiter_p(pTHX_ HV* hv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_hv_riter_set(pTHX_ HV* hv, I32 riter)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_hv_eiter_set(pTHX_ HV* hv, HE* eiter)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_hv_name_set(pTHX_ HV* hv, const char *name, I32 len, int flags)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_hv_clear_placeholders(pTHX_ HV* hb)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV I32*     Perl_hv_placeholders_p(pTHX_ HV* hv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV I32      Perl_hv_placeholders_get(pTHX_ HV* hv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_hv_placeholders_set(pTHX_ HV* hv, I32 ph)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV SV*      Perl_hv_scalar(pTHX_ HV* hv);
-PERL_CALLCONV I32*     Perl_hv_riter_p(pTHX_ HV* hv);
-PERL_CALLCONV HE**     Perl_hv_eiter_p(pTHX_ HV* hv);
-PERL_CALLCONV void     Perl_hv_riter_set(pTHX_ HV* hv, I32 riter);
-PERL_CALLCONV void     Perl_hv_eiter_set(pTHX_ HV* hv, HE* eiter);
-PERL_CALLCONV char**   Perl_hv_name_p(pTHX_ HV* hv);
-PERL_CALLCONV void     Perl_hv_name_set(pTHX_ HV* hv, const char *, STRLEN len, int flags);
-PERL_CALLCONV I32*     Perl_hv_placeholders_p(pTHX_ HV* hv);
-PERL_CALLCONV I32      Perl_hv_placeholders_get(pTHX_ HV* hv);
-PERL_CALLCONV void     Perl_hv_placeholders_set(pTHX_ HV* hv, I32 ph);
 
 PERL_CALLCONV SV*      Perl_magic_scalarpack(pTHX_ HV* hv, MAGIC*      mg);
 #ifdef PERL_IN_SV_C
@@ -2400,9 +2721,14 @@ PERL_CALLCONV void       Perl_my_swabn(void* ptr, int n);
 
 PERL_CALLCONV GV*      Perl_gv_fetchpvn_flags(pTHX_ const char* name, STRLEN len, I32 flags, I32 sv_type);
 PERL_CALLCONV GV*      Perl_gv_fetchsv(pTHX_ SV *name, I32 flags, I32 sv_type);
-PERL_CALLCONV bool     Perl_is_gv_magical_sv(pTHX_ SV *name, U32 flags);
+PERL_CALLCONV bool     Perl_is_gv_magical_sv(pTHX_ SV *name, U32 flags)
+                       __attribute__warn_unused_result__;
+
 
 PERL_CALLCONV char*    Perl_savesvpv(pTHX_ SV* sv);
 
 END_EXTERN_C
+/*
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */
 /* ex: set ro: */