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Fix overflow on i32::min_value() as exponent

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This commit is contained in:
David Tolnay 2018-10-03 22:23:48 -07:00
parent 805f394f8b
commit 2161f0540f
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2 changed files with 2 additions and 1 deletions
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2
src/de.rs
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@ -676,7 +676,7 @@ impl<'de, R: Read<'de>> Deserializer<R> {
) -> Result<f64> {
let mut f = significand as f64;
loop {
match POW10.get(exponent.abs() as usize) {
match POW10.get(exponent.wrapping_abs() as usize) {
Some(&pow) => {
if exponent >= 0 {
f *= pow;

1
tests/test.rs
View File

@ -860,6 +860,7 @@ fn test_parse_f64() {
("0.00e00", 0.0),
("0.00e+00", 0.0),
("0.00e-00", 0.0),
("3.5E-2147483647", 0.0),
(
&format!("{}", (i64::MIN as f64) - 1.0),
(i64::MIN as f64) - 1.0,