bignum.c: rb_int_parse_cstr handle `0` strings

[Bug #19390]

We shouldn't check the string length when skipping zeros, as the
string might only contains zero characters, resulting in an empty string.

1 files changed, 0 insertions, 1 deletions

diff --git a/bignum.c b/bignum.c
index a1a659db09..cb2c3b6f07 100644
--- a/bignum.c
+++ b/bignum.c
@@ -4184,7 +4184,6 @@ rb_int_parse_cstr(const char *str, ssize_t len, char **endp, size_t *ndigits,
         }
         if (!c || ISSPACE(c)) --str;
         if (end) len = end - str;
-        ASSERT_LEN();
     }
     c = *str;
     c = conv_digit(c);