if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') {
dTHR;
if (PL_curcop->cop_line)
+#ifdef IV_IS_QUAD
+ Perl_sv_catpvf(aTHX_ sv, " at %_ line %" PERL_PRId64,
+ GvSV(PL_curcop->cop_filegv), (IV)PL_curcop->cop_line);
+#else
Perl_sv_catpvf(aTHX_ sv, " at %_ line %ld",
GvSV(PL_curcop->cop_filegv), (long)PL_curcop->cop_line);
+#endif
if (GvIO(PL_last_in_gv) && IoLINES(GvIOp(PL_last_in_gv))) {
bool line_mode = (RsSIMPLE(PL_rs) &&
SvCUR(PL_rs) == 1 && *SvPVX(PL_rs) == '\n');
+#ifdef IV_IS_QUAD
+ Perl_sv_catpvf(aTHX_ sv, ", <%s> %s %" PERL_PRId64,
+ PL_last_in_gv == PL_argvgv ? "" : GvNAME(PL_last_in_gv),
+ line_mode ? "line" : "chunk",
+ (IV)IoLINES(GvIOp(PL_last_in_gv)));
+#else
Perl_sv_catpvf(aTHX_ sv, ", <%s> %s %ld",
PL_last_in_gv == PL_argvgv ? "" : GvNAME(PL_last_in_gv),
line_mode ? "line" : "chunk",
(long)IoLINES(GvIOp(PL_last_in_gv)));
+#endif
}
#ifdef USE_THREADS
if (thr->tid)
}
#endif /* !HAS_RENAME */
-UV
+NV
Perl_scan_bin(pTHX_ char *start, I32 len, I32 *retlen)
{
register char *s = start;
- register UV retval = 0;
- register UV n;
- register I32 d = 0;
+ register NV rnv = 0.0;
+ register UV ruv = 0;
register bool seenb = FALSE;
- register bool overflow = FALSE;
+ register bool overflowed = FALSE;
for (; len-- && *s; s++) {
if (!(*s == '0' || *s == '1')) {
if (*s == '_')
- continue;
- if (seenb == FALSE && *s == 'b' && retval == 0) {
+ continue; /* Note: does not check for __ and the like. */
+ if (seenb == FALSE && *s == 'b' && ruv == 0) {
/* Disallow 0bbb0b0bbb... */
seenb = TRUE;
- d = 0; /* Forget any leading zeros before the 'b'. */
continue;
}
else {
break;
}
}
- n = retval << 1;
- overflow |= (n >> 1) != retval;
- retval = n | (*s - '0');
- d++;
+ if (!overflowed) {
+ register UV xuv = ruv << 1;
+
+ if ((xuv >> 1) != ruv) {
+ dTHR;
+ overflowed = TRUE;
+ rnv = (NV) ruv;
+ if (ckWARN_d(WARN_UNSAFE))
+ Perl_warner(aTHX_ WARN_UNSAFE,
+ "Integer overflow in binary number");
+ } else
+ ruv = xuv | (*s - '0');
+ }
+ if (overflowed) {
+ rnv *= 2;
+ /* If an NV has not enough bits in its mantissa to
+ * represent an UV this summing of small low-order numbers
+ * is a waste of time (because the NV cannot preserve
+ * the low-order bits anyway): we could just remember when
+ * did we overflow and in the end just multiply rnv by the
+ * right amount. */
+ rnv += (*s - '0');
+ }
}
- if (sizeof(UV) > 4 && d > 32) {
+ if (!overflowed)
+ rnv = (NV) ruv;
+ if ( ( overflowed && rnv > 4294967295.0)
+#if UV_SIZEOF > 4
+ || (!overflowed && ruv > 0xffffffff )
+#endif
+ ) {
dTHR;
if (ckWARN(WARN_UNSAFE))
Perl_warner(aTHX_ WARN_UNSAFE,
"Binary number > 0b11111111111111111111111111111111 non-portable");
}
- if (overflow)
- Perl_croak(aTHX_ "Integer overflow in binary number");
*retlen = s - start;
- return retval;
+ return rnv;
}
-UV
+
+NV
Perl_scan_oct(pTHX_ char *start, I32 len, I32 *retlen)
{
register char *s = start;
- register UV retval = 0;
- register UV n;
- register I32 d = 0;
- register bool overflow = FALSE;
+ register NV rnv = 0.0;
+ register UV ruv = 0;
+ register bool overflowed = FALSE;
for (; len-- && *s; s++) {
if (!(*s >= '0' && *s <= '7')) {
if (*s == '_')
- continue;
+ continue; /* Note: does not check for __ and the like. */
else {
/* Allow \octal to work the DWIM way (that is, stop scanning
* as soon as non-octal characters are seen, complain only iff
break;
}
}
- n = retval << 3;
- overflow |= (n >> 3) != retval;
- retval = n | (*s - '0');
- d++;
+ if (!overflowed) {
+ register UV xuv = ruv << 3;
+
+ if ((xuv >> 3) != ruv) {
+ dTHR;
+ overflowed = TRUE;
+ rnv = (NV) ruv;
+ if (ckWARN_d(WARN_UNSAFE))
+ Perl_warner(aTHX_ WARN_UNSAFE,
+ "Integer overflow in octal number");
+ } else
+ ruv = xuv | (*s - '0');
+ }
+ if (overflowed) {
+ rnv *= 8.0;
+ /* If an NV has not enough bits in its mantissa to
+ * represent an UV this summing of small low-order numbers
+ * is a waste of time (because the NV cannot preserve
+ * the low-order bits anyway): we could just remember when
+ * did we overflow and in the end just multiply rnv by the
+ * right amount of 8-tuples. */
+ rnv += (NV)(*s - '0');
+ }
}
- if (sizeof(UV) > 4 && d > 10 && (retval >> 30) > 3) {
+ if (!overflowed)
+ rnv = (NV) ruv;
+ if ( ( overflowed && rnv > 4294967295.0)
+#if UV_SIZEOF > 4
+ || (!overflowed && ruv > 0xffffffff )
+#endif
+ ) {
dTHR;
if (ckWARN(WARN_UNSAFE))
Perl_warner(aTHX_ WARN_UNSAFE,
"Octal number > 037777777777 non-portable");
}
- if (overflow)
- Perl_croak(aTHX_ "Integer overflow in octal number");
*retlen = s - start;
- return retval;
+ return rnv;
}
-UV
+NV
Perl_scan_hex(pTHX_ char *start, I32 len, I32 *retlen)
{
register char *s = start;
- register UV retval = 0;
- char *tmp = s;
- register UV n;
- register I32 d = 0;
+ register NV rnv = 0.0;
+ register UV ruv = 0;
register bool seenx = FALSE;
- register bool overflow = FALSE;
+ register bool overflowed = FALSE;
+ char *hexdigit;
- while (len-- && *s) {
- tmp = strchr((char *) PL_hexdigit, *s++);
- if (!tmp) {
- if (*(s-1) == '_')
- continue;
- if (seenx == FALSE && *(s-1) == 'x' && retval == 0) {
+ for (; len-- && *s; s++) {
+ hexdigit = strchr((char *) PL_hexdigit, *s);
+ if (!hexdigit) {
+ if (*s == '_')
+ continue; /* Note: does not check for __ and the like. */
+ if (seenx == FALSE && *s == 'x' && ruv == 0) {
/* Disallow 0xxx0x0xxx... */
seenx = TRUE;
- d = 0; /* Forget any leading zeros before the 'x'. */
continue;
}
else {
dTHR;
- --s;
if (ckWARN(WARN_UNSAFE))
Perl_warner(aTHX_ WARN_UNSAFE,
"Illegal hexadecimal digit '%c' ignored", *s);
break;
}
}
- d++;
- n = retval << 4;
- overflow |= (n >> 4) != retval;
- retval = n | ((tmp - PL_hexdigit) & 15);
+ if (!overflowed) {
+ register UV xuv = ruv << 4;
+
+ if ((xuv >> 4) != ruv) {
+ dTHR;
+ overflowed = TRUE;
+ rnv = (NV) ruv;
+ if (ckWARN_d(WARN_UNSAFE))
+ Perl_warner(aTHX_ WARN_UNSAFE,
+ "Integer overflow in hexadecimal number");
+ } else
+ ruv = xuv | ((hexdigit - PL_hexdigit) & 15);
+ }
+ if (overflowed) {
+ rnv *= 16.0;
+ /* If an NV has not enough bits in its mantissa to
+ * represent an UV this summing of small low-order numbers
+ * is a waste of time (because the NV cannot preserve
+ * the low-order bits anyway): we could just remember when
+ * did we overflow and in the end just multiply rnv by the
+ * right amount of 16-tuples. */
+ rnv += (NV)((hexdigit - PL_hexdigit) & 15);
+ }
}
- if (sizeof(UV) > 4 && d > 8) {
+ if (!overflowed)
+ rnv = (NV) ruv;
+ if ( ( overflowed && rnv > 4294967295.0)
+#if UV_SIZEOF > 4
+ || (!overflowed && ruv > 0xffffffff )
+#endif
+ ) {
dTHR;
if (ckWARN(WARN_UNSAFE))
Perl_warner(aTHX_ WARN_UNSAFE,
"Hexadecimal number > 0xffffffff non-portable");
}
- if (overflow)
- Perl_croak(aTHX_ "Integer overflow in hexadecimal number");
*retlen = s - start;
- return retval;
+ return rnv;
}
char*