commit | a4a4dc2d928090e67fbaeb846b237ba932eeebf3 | [log] [tgz] |
---|---|---|
author | Jiyong Park <jiyong@google.com> | Tue Feb 16 13:26:11 2021 +0900 |
committer | Jiyong Park <jiyong@google.com> | Tue Feb 16 13:27:19 2021 +0900 |
tree | b5cf40a0b7843236d8f69b9f10712e5fc628c911 | |
parent | a4c5ece50b20b76ede86c2046bc8867da9396008 [diff] |
Add virtmanager to the virt APEX We want to have virtmanager (and its dependencies) inside the APEX so that they can be updated. This library is a dependency of the binary, therefore it should also be marked as being available to the APEX. Bug: 180297657 Test: com.android.virt Change-Id: Id1234fc852f9fffdcf66f9a604a83b59f12d07ee
This crate provides fast functions for printing integer primitives to an io::Write
or a fmt::Write
. The implementation comes straight from libcore but avoids the performance penalty of going through fmt::Formatter
.
See also dtoa
for printing floating point primitives.
Version requirement: rustc 1.0+
[dependencies] itoa = "0.4"
use std::{fmt, io}; fn demo_itoa_write() -> io::Result<()> { // Write to a vector or other io::Write. let mut buf = Vec::new(); itoa::write(&mut buf, 128u64)?; println!("{:?}", buf); // Write to a stack buffer. let mut bytes = [0u8; 20]; let n = itoa::write(&mut bytes[..], 128u64)?; println!("{:?}", &bytes[..n]); Ok(()) } fn demo_itoa_fmt() -> fmt::Result { // Write to a string. let mut s = String::new(); itoa::fmt(&mut s, 128u64)?; println!("{}", s); Ok(()) }
The function signatures are:
fn write<W: io::Write, V: itoa::Integer>(writer: W, value: V) -> io::Result<usize>; fn fmt<W: fmt::Write, V: itoa::Integer>(writer: W, value: V) -> fmt::Result;
where itoa::Integer
is implemented for i8, u8, i16, u16, i32, u32, i64, u64, i128, u128, isize and usize. 128-bit integer support requires rustc 1.26+ and the i128
feature of this crate enabled.
The write
function is only available when the std
feature is enabled (default is enabled). The return value gives the number of bytes written.