cstr-argument
=============
A trait for converting function arguments to null terminated strings
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[![Version](https://img.shields.io/crates/v/cstr-argument.svg)](https://crates.io/crates/cstr-argument)
[Documentation](https://docs.rs/cstr-argument)
## Usage
Add this to your `Cargo.toml`:
```toml
[dependencies]
cstr-argument = "0.0.2"
```
and this to your crate root:
```rust
extern crate cstr_argument;
```
## Example
```rust
use std::os::raw::c_char;
use cstr_argument::CStrArgument;
extern "C" {
fn foo(s: *const c_char);
}
fn bar<S: CStrArgument>(s: S) {
let s = s.into_cstr();
unsafe {
foo(s.as_ref().as_ptr())
}
}
fn baz() {
bar("hello "); // Argument will be converted to a CString requiring an allocation
bar("world\0"); // Argument will be converted to a CStr without allocation
bar("!".to_owned()); // Argument will be converted to a CString possibly requiring an allocation
}
```