[−][src]Crate cluConcatBytes
Merges literals into a static array. Plugin for compiler.
Use
- Easy use
#![feature(plugin)] #![plugin(cluConcatBytes)] fn main() { let c_str = concat_bytes!("cluWorld"); //&'static [u8] //array: [99, 108, 117, 87, 111, 114, 108, 100], len: 8 assert_eq!(c_str, b"cluWorld"); let c_str2 = concat_bytes!("clu", b"World"); //&'static [u8] //array: [99, 108, 117, 87, 111, 114, 108, 100], len: 8 assert_eq!(c_str2, b"cluWorld"); let c_str3 = concat_bytes!( b'c', b'l', b'u', b'W', b'o', b'r', b'l', b'd' ); //&'static [u8] //array: [99, 108, 117, 87, 111, 114, 108, 100], len: 8 assert_eq!(c_str3, b"cluWorld"); let c_str4 = concat_bytes!( "clu", b'W', b'o', b'r', b'l', b"d" ); //&'static [u8] //array: [99, 108, 117, 87, 111, 114, 108, 100], len: 8 assert_eq!(c_str4, b"cluWorld"); my_function(c_str); my_function(c_str2); my_function(c_str3); my_function(c_str4); } fn my_function(array: &'static [u8]) { //'static --> it is possible not to write. println!("array: {:?}, len: {}", array, array.len()); }
- Raw use
#![feature(plugin)] #![plugin(cluConcatBytes)] fn main() { let c_str = concat_bytes!(@"cluWorld"); //[u8; 8] //array: [99, 108, 117, 87, 111, 114, 108, 100], len: 8 assert_eq!(&c_str, b"cluWorld"); let c_str2 = concat_bytes!(@"cluWorld"); //[u8; 8] //array: [99, 108, 117, 87, 111, 114, 108, 100], len: 8 assert_eq!(&c_str2, b"cluWorld"); let c_str3 = concat_bytes!(@"clu", b"World"); //[u8; 8] //array: [99, 108, 117, 87, 111, 114, 108, 100], len: 8 assert_eq!(&c_str3, b"cluWorld"); my_function(c_str); my_function(c_str2); my_function(c_str3); } fn my_function(array: [u8; 8]) { //'static --> it is possible not to write. println!("array: {:?}, len: {}", array, array.len()); }
License
Copyright 2019 #UlinProject Denis Kotlyarov (Денис Котляров)
Licensed under the Apache License, Version 2.0
Macros
concat_bytes |