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Remove zero cutoff checks in float formatting functions for improved simplicity and performance. This change streamlines the format_f32 and format_f64 functions, enhancing the overall efficiency of float serialization in JSON.

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Joe 2026-02-18 10:33:19 -06:00
parent ea9025725a
commit b8a1dc269c
1 changed files with 0 additions and 8 deletions
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8
src/json.rs
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@ -153,13 +153,8 @@ const F64_FLOAT_OPTIONS: Options = Options::builder()
const F32_BUF_SIZE: usize = F32_FLOAT_OPTIONS.buffer_size_const::<f32, STANDARD>();
const F64_BUF_SIZE: usize = F64_FLOAT_OPTIONS.buffer_size_const::<f64, STANDARD>();
const F32_ZERO_CUTOFF: f64 = 1e-6;
const F64_ZERO_CUTOFF: f64 = 1e-15;
fn format_f32(v: f32) -> String {
if (v as f64).abs() < F32_ZERO_CUTOFF {
return "0".into();
}
let mut buffer = [0u8; F32_BUF_SIZE];
let digits = v.to_lexical_with_options::<STANDARD>(&mut buffer, &F32_FLOAT_OPTIONS);
std::str::from_utf8(digits)
@ -168,9 +163,6 @@ fn format_f32(v: f32) -> String {
}
fn format_f64(v: f64) -> String {
if v.abs() < F64_ZERO_CUTOFF {
return "0".into();
}
if v.is_finite() && v.abs() >= 1e308 {
return format!("{v:e}");
}