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# swrite
[](https://github.com/rusticstuff/swrite/actions/workflows/ci.yml)
[](https://crates.io/crates/swrite)
[](https://docs.rs/swrite)
`swrite` is a tiny Rust crate providing the `swrite!` and `swriteln!` macros as
infallible alternatives to `write!` and `writeln!` for Strings. This is safe because
writing to a String never returns `Err(_)`.
The implementation uses the `SWrite` trait. It is implemented for `String`.
With the `osstring` feature is enabled, it is also implemented for `std::ffi::OsString`.
Minimum Supported Rust Version (MSRV):
- Without the `osstring` feature (default): 1.30.0
- With the `osstring` feature: 1.64.0
## Usage
In `Cargo.toml`:
```toml
[dependencies]
swrite = "0.1.0"
```
In your Rust code:
```rust
use swrite::{SWrite, swrite, swriteln};
```
## Examples
Using `swrite!` and `swriteln!` with a `String`:
```rust
use swrite::{SWrite, swrite, swriteln};
let mut s = String::new();
swrite!(s, "Hello, {}! ", "world");
swriteln!(s, "The answer is {}.", 42);
println!("{}", s);
```
Output:
```not_rust
Hello, world! The answer is 42.
```
## License
This project is dual-licensed under [Apache 2.0](LICENSE-APACHE) and [MIT](LICENSE-MIT) licenses.
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