cargoless-rust-experiments/rust-itoa-Reintroduce-fmt.patch

From 4c3501a1086fcea7ed9bd911d07aadcb23855780 Mon Sep 17 00:00:00 2001
From: Maxime Devos <maximedevos@telenet.be>
Date: Sun, 10 Apr 2022 17:54:00 +0000
Subject: [PATCH] Revert "Delete fmt function"

This reverts commit 9cf53f10832b202fa8f515352b4b1ebd7aa05e05,
as rust-http@0.2 still uses this. (TODO inform rust-http)
---
 src/lib.rs | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index c26bf35..c2bbd5e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -46,6 +46,34 @@ use core::{ptr, slice, str};
 
 /// A correctly sized stack allocation for the formatted integer to be written
 /// into.
+#[cfg(feature = "std")]
+extern crate std;
+#[cfg(feature = "std")]
+use std::{fmt, io};
+
+#[cfg(not(feature = "std"))]
+use core::{fmt};
+
+/// Write integer to an `io::Write`.
+#[cfg(feature = "std")]
+#[inline]
+pub fn write<W: io::Write, V: Integer>(mut wr: W, value: V) -> io::Result<usize> {
+    let mut buf = Buffer::new();
+    let s = buf.format(value);
+    match wr.write_all(s.as_bytes()) {
+        Ok(()) => Ok(s.len()),
+        Err(e) => Err(e),
+    }
+}
+
+/// Write integer to an `fmt::Write`.
+#[inline]
+pub fn fmt<W: fmt::Write, V: Integer>(mut wr: W, value: V) -> fmt::Result {
+    let mut buf = Buffer::new();
+    wr.write_str(buf.format(value))
+}
+
+/// A safe API for formatting integers to text.
 ///
 /// # Example
 ///
-- 
2.34.0