diff options
| -rw-r--r-- | src/libserialize/json.rs | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/libserialize/json.rs b/src/libserialize/json.rs index 23e2c4b9830..163fbcdff70 100644 --- a/src/libserialize/json.rs +++ b/src/libserialize/json.rs @@ -386,7 +386,8 @@ fn spaces(wr: &mut io::Writer, mut n: uint) -> Result<(), io::IoError> { fn fmt_number_or_null(v: f64) -> string::String { match v.classify() { FPNaN | FPInfinite => string::String::from_str("null"), - _ => f64::to_str_digits(v, 6u) + _ if v.fract() != 0f64 => f64::to_str_digits(v, 6u), + _ => f64::to_str_digits(v, 6u) + ".0", } } @@ -2504,8 +2505,8 @@ mod tests { #[test] fn test_write_f64() { - assert_eq!(F64(3.0).to_string().into_string(), "3"); - assert_eq!(F64(3.0).to_pretty_str().into_string(), "3"); + assert_eq!(F64(3.0).to_string().into_string(), "3.0"); + assert_eq!(F64(3.0).to_pretty_str().into_string(), "3.0"); assert_eq!(F64(3.1).to_string().into_string(), "3.1"); assert_eq!(F64(3.1).to_pretty_str().into_string(), "3.1"); |