diff options
Diffstat (limited to 'src/libcore')
| -rw-r--r-- | src/libcore/num/dec2flt/parse.rs | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/libcore/num/dec2flt/parse.rs b/src/libcore/num/dec2flt/parse.rs index 58e2a6e9bba..414bcc874ea 100644 --- a/src/libcore/num/dec2flt/parse.rs +++ b/src/libcore/num/dec2flt/parse.rs @@ -59,7 +59,12 @@ pub fn parse_decimal(s: &str) -> ParseResult { let s = s.as_bytes(); let (integral, s) = eat_digits(s); match s.first() { - None => Valid(Decimal::new(integral, b"", 0)), + None => { + if integral.is_empty() { + return Invalid; // No digits at all + } + Valid(Decimal::new(integral, b"", 0)) + } Some(&b'e') | Some(&b'E') => { if integral.is_empty() { return Invalid; // No digits before 'e' |