PERL_CALLCONV U32 Perl_to_uni_upper_lc(pTHX_ U32 c);
PERL_CALLCONV U32 Perl_to_uni_title_lc(pTHX_ U32 c);
PERL_CALLCONV U32 Perl_to_uni_lower_lc(pTHX_ U32 c);
-PERL_CALLCONV int Perl_is_utf8_char(pTHX_ U8 *p);
+PERL_CALLCONV STRLEN Perl_is_utf8_char(pTHX_ U8 *p);
PERL_CALLCONV bool Perl_is_utf8_string(pTHX_ U8 *s, STRLEN len);
PERL_CALLCONV bool Perl_is_utf8_alnum(pTHX_ U8 *p);
PERL_CALLCONV bool Perl_is_utf8_alnumc(pTHX_ U8 *p);
PERL_CALLCONV OP* Perl_scalarkids(pTHX_ OP* o);
PERL_CALLCONV OP* Perl_scalarseq(pTHX_ OP* o);
PERL_CALLCONV OP* Perl_scalarvoid(pTHX_ OP* o);
-PERL_CALLCONV NV Perl_scan_bin(pTHX_ char* start, I32 len, I32* retlen);
-PERL_CALLCONV NV Perl_scan_hex(pTHX_ char* start, I32 len, I32* retlen);
+PERL_CALLCONV NV Perl_scan_bin(pTHX_ char* start, STRLEN len, STRLEN* retlen);
+PERL_CALLCONV NV Perl_scan_hex(pTHX_ char* start, STRLEN len, STRLEN* retlen);
PERL_CALLCONV char* Perl_scan_num(pTHX_ char* s, YYSTYPE *lvalp);
-PERL_CALLCONV NV Perl_scan_oct(pTHX_ char* start, I32 len, I32* retlen);
+PERL_CALLCONV NV Perl_scan_oct(pTHX_ char* start, STRLEN len, STRLEN* retlen);
PERL_CALLCONV OP* Perl_scope(pTHX_ OP* o);
PERL_CALLCONV char* Perl_screaminstr(pTHX_ SV* bigsv, SV* littlesv, I32 start_shift, I32 end_shift, I32 *state, I32 last);
#if !defined(VMS)
PERL_CALLCONV U8* Perl_utf8_hop(pTHX_ U8 *s, I32 off);
PERL_CALLCONV U8* Perl_utf8_to_bytes(pTHX_ U8 *s, STRLEN *len);
PERL_CALLCONV U8* Perl_bytes_to_utf8(pTHX_ U8 *s, STRLEN *len);
-PERL_CALLCONV UV Perl_utf8_to_uv(pTHX_ U8 *s, I32* retlen);
-PERL_CALLCONV UV Perl_utf8_to_uv_chk(pTHX_ U8 *s, I32* retlen, bool checking);
+PERL_CALLCONV UV Perl_utf8_to_uv_simple(pTHX_ U8 *s, STRLEN* retlen);
+PERL_CALLCONV UV Perl_utf8_to_uv(pTHX_ U8 *s, STRLEN curlen, STRLEN* retlen, U32 flags);
PERL_CALLCONV U8* Perl_uv_to_utf8(pTHX_ U8 *d, UV uv);
PERL_CALLCONV void Perl_vivify_defelem(pTHX_ SV* sv);
PERL_CALLCONV void Perl_vivify_ref(pTHX_ SV* sv, U32 to_what);
STATIC regnode* S_reganode(pTHX_ U8, U32);
STATIC regnode* S_regatom(pTHX_ I32 *);
STATIC regnode* S_regbranch(pTHX_ I32 *, I32);
-STATIC void S_reguni(pTHX_ UV, char *, I32*);
+STATIC void S_reguni(pTHX_ UV, char *, STRLEN*);
STATIC regnode* S_regclass(pTHX);
STATIC regnode* S_regclassutf8(pTHX);
STATIC I32 S_regcurly(pTHX_ char *);