# allocdeny

Deny the use of crate `alloc`.

This crate exists solely to deny the use of the built-in `alloc` crate.
This is useful if your library has different safety/soundness requirements
than those allowed by Rust's own `alloc`.

# Examples

The following code only compiles with this crate:

```rust
extern crate alloc;
alloc::allocdeny!();
```

When doing this, regular alloc is inaccessible.

# Usage

Library authors who are doing their own thing and not relying on fn main()
can simply expand this macro in their entry point wrapper. For example:

```rust
macro_rules! my_plugin {
  () => {
    alloc::allocdeny!();
    extern "C" fn plugin_init() {
    }
  }
}
```

Then users of `my_plugin!` will be unable to use `alloc`!
You can also provide an `unsafe` version of `my_plugin` that does not expand
`alloc::allocdeny!()`, if you want.