SV_UNDEF_RETURNS_NULL|SV_CONST_RETURN|SV_GMAGIC);
if (!p) {
- sv_setsv(TARG, &PL_sv_undef);
- SETTARG;
+ if (!SvPADTMP(TARG)) {
+ sv_setsv(TARG, &PL_sv_undef);
+ SETTARG;
+ }
+ SETs(&PL_sv_undef);
}
else if (DO_UTF8(sv)) {
SETi(utf8_length((U8*)p, (U8*)p + len));
else
SETi(sv_len(sv));
} else {
- sv_setsv_nomg(TARG, &PL_sv_undef);
- SETTARG;
+ if (!SvPADTMP(TARG)) {
+ sv_setsv_nomg(TARG, &PL_sv_undef);
+ SETTARG;
+ }
+ SETs(&PL_sv_undef);
}
RETURN;
}
/* Generally UTF-8 and UTF-EBCDIC are indistinguishable at this level. So
* most comments below say UTF-8, when in fact they mean UTF-EBCDIC as well */
-/* Both the characters below can be stored in two UTF-8 bytes. In UTF-8 the max
- * character that 2 bytes can hold is U+07FF, and in UTF-EBCDIC it is U+03FF.
- * See http://www.unicode.org/unicode/reports/tr16 */
-#define LATIN_CAPITAL_LETTER_Y_WITH_DIAERESIS 0x0178 /* Also is title case */
-#define GREEK_CAPITAL_LETTER_MU 0x039C /* Upper and title case of MICRON */
-
/* Below are several macros that generate code */
/* Generates code to store a unicode codepoint c that is known to occupy
* exactly two UTF-8 and UTF-EBCDIC bytes; it is stored into p and p+1. */