parent
9f3e867f04
commit
70883abe4d
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@ -13,5 +13,7 @@ matrix:
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script:
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- cargo build --verbose --features "$FEATURES"
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- cargo test --verbose --features "$FEATURES"
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- cargo build --verbose --no-default-features --features "$FEATURES"
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- cargo test --verbose --no-default-features --features "$FEATURES"
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- if [ "$BUILD_BENCH" == "true" ]; then cargo bench --verbose --no-run --features "$FEATURES"; fi
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@ -11,4 +11,6 @@ readme = "README.md"
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exclude = ["performance.png"]
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[features]
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default = ["std"]
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i128 = []
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std = []
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@ -53,6 +53,9 @@ where `itoa::Integer` is implemented for `i8`, `u8`, `i16`, `u16`, `i32`, `u32`,
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only available with the nightly compiler when the `i128` feature is enabled for
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this crate. The return value gives the number of bytes written.
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The `write` function is only available when the `std` feature is enabled
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(default is enabled).
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## Dependency
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Itoa is available on [crates.io](https://crates.io/crates/itoa). Use the
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@ -8,6 +8,8 @@
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#![doc(html_root_url = "https://docs.rs/itoa/0.3.4")]
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#![cfg_attr(not(feature = "std"), no_std)]
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#![cfg_attr(feature = "i128", feature(i128_type, i128))]
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#![cfg_attr(feature = "cargo-clippy", allow(cast_lossless, unreadable_literal))]
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@ -15,8 +17,13 @@
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#[cfg(feature = "i128")]
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mod udiv128;
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#[cfg(feature = "std")]
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use std::{fmt, io, mem, ptr, slice, str};
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#[cfg(not(feature = "std"))]
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use core::{fmt, mem, ptr, slice, str};
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#[cfg(feature = "std")]
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#[inline]
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pub fn write<W: io::Write, V: Integer>(wr: W, value: V) -> io::Result<usize> {
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value.write(wr)
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@ -33,6 +40,7 @@ mod private {
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}
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pub trait Integer: private::Sealed {
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#[cfg(feature = "std")]
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fn write<W: io::Write>(self, W) -> io::Result<usize>;
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fn fmt<W: fmt::Write>(self, W) -> fmt::Result;
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@ -56,6 +64,7 @@ const MAX_LEN: usize = 40; // i128::MIN (including minus sign)
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macro_rules! impl_IntegerCommon {
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($t:ident) => {
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impl Integer for $t {
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#[cfg(feature = "std")]
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fn write<W: io::Write>(self, mut wr: W) -> io::Result<usize> {
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let mut buf = unsafe { mem::uninitialized() };
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let bytes = self.write_to(&mut buf);
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@ -17,9 +17,12 @@ macro_rules! test {
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$(#[$attr])*
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#[test]
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fn $name() {
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let mut buf = [b'\0'; 40];
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let len = itoa::write(&mut buf[..], $value).unwrap();
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assert_eq!(&buf[0..len], $expected.as_bytes());
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#[cfg(feature = "std")]
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{
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let mut buf = [b'\0'; 40];
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let len = itoa::write(&mut buf[..], $value).unwrap();
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assert_eq!(&buf[0..len], $expected.as_bytes());
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}
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let mut s = String::new();
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itoa::fmt(&mut s, $value).unwrap();
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