locale.c: Use safer code practice

[perl5.git] / doop.c

diff --git a/doop.c b/doop.c
index faf74c5..6a136d9 100644 (file)
--- a/doop.c
+++ b/doop.c
@@ -30,7 +30,6 @@
 STATIC I32
 S_do_trans_simple(pTHX_ SV * const sv)
 {
-    dVAR;
     I32 matches = 0;
     STRLEN len;
     U8 *s = (U8*)SvPV_nomg(sv,len);
@@ -99,7 +98,6 @@ S_do_trans_simple(pTHX_ SV * const sv)
 STATIC I32
 S_do_trans_count(pTHX_ SV * const sv)
 {
-    dVAR;
     STRLEN len;
     const U8 *s = (const U8*)SvPV_nomg_const(sv, len);
     const U8 * const send = s + len;
@@ -137,7 +135,6 @@ S_do_trans_count(pTHX_ SV * const sv)
 STATIC I32
 S_do_trans_complex(pTHX_ SV * const sv)
 {
-    dVAR;
     STRLEN len;
     U8 *s = (U8*)SvPV_nomg(sv, len);
     U8 * const send = s+len;
@@ -301,7 +298,6 @@ S_do_trans_complex(pTHX_ SV * const sv)
 STATIC I32
 S_do_trans_simple_utf8(pTHX_ SV * const sv)
 {
-    dVAR;
     U8 *s;
     U8 *send;
     U8 *d;
@@ -331,7 +327,7 @@ S_do_trans_simple_utf8(pTHX_ SV * const sv)
        const U8 * const e = s + len;
        while (t < e) {
            const U8 ch = *t++;
-           hibit = !NATIVE_IS_INVARIANT(ch);
+           hibit = !NATIVE_BYTE_IS_INVARIANT(ch);
            if (hibit) {
                s = bytes_to_utf8(s, &len);
                break;
@@ -361,7 +357,7 @@ S_do_trans_simple_utf8(pTHX_ SV * const sv)
        if (uv < none) {
            s += UTF8SKIP(s);
            matches++;
-           d = uvuni_to_utf8(d, uv);
+           d = uvchr_to_utf8(d, uv);
        }
        else if (uv == none) {
            const int i = UTF8SKIP(s);
@@ -372,7 +368,7 @@ S_do_trans_simple_utf8(pTHX_ SV * const sv)
        else if (uv == extra) {
            s += UTF8SKIP(s);
            matches++;
-           d = uvuni_to_utf8(d, final);
+           d = uvchr_to_utf8(d, final);
        }
        else
            s += UTF8SKIP(s);
@@ -406,7 +402,6 @@ S_do_trans_simple_utf8(pTHX_ SV * const sv)
 STATIC I32
 S_do_trans_count_utf8(pTHX_ SV * const sv)
 {
-    dVAR;
     const U8 *s;
     const U8 *start = NULL;
     const U8 *send;
@@ -432,7 +427,7 @@ S_do_trans_count_utf8(pTHX_ SV * const sv)
        const U8 * const e = s + len;
        while (t < e) {
            const U8 ch = *t++;
-           hibit = !NATIVE_IS_INVARIANT(ch);
+           hibit = !NATIVE_BYTE_IS_INVARIANT(ch);
            if (hibit) {
                start = s = bytes_to_utf8(s, &len);
                break;
@@ -456,7 +451,6 @@ S_do_trans_count_utf8(pTHX_ SV * const sv)
 STATIC I32
 S_do_trans_complex_utf8(pTHX_ SV * const sv)
 {
-    dVAR;
     U8 *start, *send;
     U8 *d;
     I32 matches = 0;
@@ -487,7 +481,7 @@ S_do_trans_complex_utf8(pTHX_ SV * const sv)
        const U8 * const e = s + len;
        while (t < e) {
            const U8 ch = *t++;
-           hibit = !NATIVE_IS_INVARIANT(ch);
+           hibit = !NATIVE_BYTE_IS_INVARIANT(ch);
            if (hibit) {
                s = bytes_to_utf8(s, &len);
                break;
@@ -532,7 +526,7 @@ S_do_trans_complex_utf8(pTHX_ SV * const sv)
                matches++;
                s += UTF8SKIP(s);
                if (uv != puv) {
-                   d = uvuni_to_utf8(d, uv);
+                   d = uvchr_to_utf8(d, uv);
                    puv = uv;
                }
                continue;
@@ -550,13 +544,13 @@ S_do_trans_complex_utf8(pTHX_ SV * const sv)
                if (havefinal) {
                    s += UTF8SKIP(s);
                    if (puv != final) {
-                       d = uvuni_to_utf8(d, final);
+                       d = uvchr_to_utf8(d, final);
                        puv = final;
                    }
                }
                else {
                    STRLEN len;
-                   uv = utf8n_to_uvuni(s, send - s, &len, UTF8_ALLOW_DEFAULT);
+                   uv = utf8n_to_uvchr(s, send - s, &len, UTF8_ALLOW_DEFAULT);
                    if (uv != puv) {
                        Move(s, d, len, U8);
                        d += len;
@@ -585,7 +579,7 @@ S_do_trans_complex_utf8(pTHX_ SV * const sv)
            if (uv < none) {
                matches++;
                s += UTF8SKIP(s);
-               d = uvuni_to_utf8(d, uv);
+               d = uvchr_to_utf8(d, uv);
                continue;
            }
            else if (uv == none) {      /* "none" is unmapped character */
@@ -598,7 +592,7 @@ S_do_trans_complex_utf8(pTHX_ SV * const sv)
            else if (uv == extra && !del) {
                matches++;
                s += UTF8SKIP(s);
-               d = uvuni_to_utf8(d, final);
+               d = uvchr_to_utf8(d, final);
                continue;
            }
            matches++;                  /* "none+1" is delete character */
@@ -624,7 +618,6 @@ S_do_trans_complex_utf8(pTHX_ SV * const sv)
 I32
 Perl_do_trans(pTHX_ SV *sv)
 {
-    dVAR;
     STRLEN len;
     const I32 hasutf = (PL_op->op_private &
                     (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF));
@@ -632,7 +625,6 @@ Perl_do_trans(pTHX_ SV *sv)
     PERL_ARGS_ASSERT_DO_TRANS;
 
     if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL)) {
-        if (!SvIsCOW(sv))
             Perl_croak_no_modify();
     }
     (void)SvPV_const(sv, len);
@@ -673,7 +665,6 @@ Perl_do_trans(pTHX_ SV *sv)
 void
 Perl_do_join(pTHX_ SV *sv, SV *delim, SV **mark, SV **sp)
 {
-    dVAR;
     SV ** const oldmark = mark;
     I32 items = sp - mark;
     STRLEN len;
@@ -732,7 +723,6 @@ Perl_do_join(pTHX_ SV *sv, SV *delim, SV **mark, SV **sp)
 void
 Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg)
 {
-    dVAR;
     STRLEN patlen;
     const char * const pat = SvPV_const(*sarg, patlen);
     bool do_taint = FALSE;
@@ -760,15 +750,15 @@ Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg)
 UV
 Perl_do_vecget(pTHX_ SV *sv, SSize_t offset, int size)
 {
-    dVAR;
     STRLEN srclen, len, uoffset, bitoffs = 0;
-    const unsigned char *s = (const unsigned char *) SvPV_flags_const(sv, srclen,
-                             SV_GMAGIC | ((PL_op->op_flags & OPf_MOD || LVRET)
-                                          ? SV_UNDEF_RETURNS_NULL : 0));
+    const I32 svpv_flags = ((PL_op->op_flags & OPf_MOD || LVRET)
+                                          ? SV_UNDEF_RETURNS_NULL : 0);
+    unsigned char *s = (unsigned char *)
+                            SvPV_flags(sv, srclen, (svpv_flags|SV_GMAGIC));
     UV retnum = 0;
 
     if (!s) {
-      s = (const unsigned char *)"";
+      s = (unsigned char *)"";
     }
     
     PERL_ARGS_ASSERT_DO_VECGET;
@@ -778,8 +768,11 @@ Perl_do_vecget(pTHX_ SV *sv, SSize_t offset, int size)
     if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
        Perl_croak(aTHX_ "Illegal number of bits in vec");
 
-    if (SvUTF8(sv))
+    if (SvUTF8(sv)) {
        (void) Perl_sv_utf8_downgrade(aTHX_ sv, TRUE);
+        /* PVX may have changed */
+        s = (unsigned char *) SvPV_flags(sv, srclen, svpv_flags);
+    }
 
     if (size < 8) {
        bitoffs = ((offset%8)*size)%8;
@@ -847,7 +840,7 @@ Perl_do_vecget(pTHX_ SV *sv, SSize_t offset, int size)
                        ((UV) s[uoffset + 1] << 48) +
                        ((UV) s[uoffset + 2] << 40) +
                        ((UV) s[uoffset + 3] << 32) +
-                       (     s[uoffset + 4] << 24);
+                       ((UV) s[uoffset + 4] << 24);
                else if (uoffset + 6 >= srclen)
                    retnum =
                        ((UV) s[uoffset    ] << 56) +
@@ -864,7 +857,7 @@ Perl_do_vecget(pTHX_ SV *sv, SSize_t offset, int size)
                        ((UV) s[uoffset + 3] << 32) +
                        ((UV) s[uoffset + 4] << 24) +
                        ((UV) s[uoffset + 5] << 16) +
-                       (     s[uoffset + 6] <<  8);
+                       ((UV) s[uoffset + 6] <<  8);
            }
 #endif
        }
@@ -911,7 +904,6 @@ Perl_do_vecget(pTHX_ SV *sv, SSize_t offset, int size)
 void
 Perl_do_vecset(pTHX_ SV *sv)
 {
-    dVAR;
     SSize_t offset, bitoffs = 0;
     int size;
     unsigned char *s;
@@ -998,7 +990,6 @@ Perl_do_vecset(pTHX_ SV *sv)
 void
 Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right)
 {
-    dVAR;
 #ifdef LIBERAL
     long *dl;
     long *ll;
@@ -1227,7 +1218,6 @@ finish:
 OP *
 Perl_do_kv(pTHX)
 {
-    dVAR;
     dSP;
     HV * const keys = MUTABLE_HV(POPs);
     HE *entry;