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EBCDIC: the v-string components cannot exceed 2147483647.
[perl5.git] / util.c
diff --git a/util.c b/util.c
index 26b63d0..a9f9ade 100644 (file)
--- a/util.c
+++ b/util.c
@@ -4012,35 +4012,39 @@ Perl_new_vstring(pTHX_ char *s, SV *sv)
        for (;;) {
            rev = 0;
            {
-           /* this is atoi() that tolerates underscores */
-           char *end = pos;
-           UV mult = 1;
-           if ( *(s-1) == '_') {
-               mult = 10;
-           }
-           while (--end >= s) {
-               UV orev;
-               orev = rev;
-               rev += (*end - '0') * mult;
-               mult *= 10;
-               if (orev > rev && ckWARN_d(WARN_OVERFLOW))
-               Perl_warner(aTHX_ WARN_OVERFLOW,
-                       "Integer overflow in decimal number");
-           }
+                /* this is atoi() that tolerates underscores */
+                char *end = pos;
+                UV mult = 1;
+                if ( *(s-1) == '_') {
+                     mult = 10;
+                }
+                while (--end >= s) {
+                     UV orev;
+                     orev = rev;
+                     rev += (*end - '0') * mult;
+                     mult *= 10;
+                     if (orev > rev && ckWARN_d(WARN_OVERFLOW))
+                          Perl_warner(aTHX_ WARN_OVERFLOW,
+                                      "Integer overflow in decimal number");
+                }
            }
+#ifdef EBCDIC
+           if (rev > 0x7FFFFFFF)
+                Perl_croak(aTHX "In EBCDIC the v-string components cannot exceed 2147483647");
+#endif
            /* Append native character for the rev point */
            tmpend = uvchr_to_utf8(tmpbuf, rev);
            sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf);
            if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev)))
-           SvUTF8_on(sv);
+                SvUTF8_on(sv);
            if ( (*pos == '.' || *pos == '_') && isDIGIT(pos[1]))
-           s = ++pos;
+                s = ++pos;
            else {
-           s = pos;
-           break;
+                s = pos;
+                break;
            }
            while (isDIGIT(*pos) )
-           pos++;
+                pos++;
        }
        SvPOK_on(sv);
        SvREADONLY_on(sv);