Derive Macro C

#[derive(C)]

对C语言的增加处理方法

[dependencies]
serde_json = "1.0"
serde = { version = "1.0", features = ["derive"] }
e-macros = { version = "0.1", git="https://gitee.com/eternalnight996/e-macros"}

Example

#[derive(e_utils::C)]
struct B {
  d: i32,
  f: String,
}
fn test() -> Result<()> {
  // 假设我们有一个T类型的实例
  let value: B = B {
    d: 1,
    f: "test".to_string(),
  };
  let ptr = value.to_c_ptr();
  // 还原*c_void指针为<Box<T>>实例
  if let Some(restored_boxed_value) = unsafe { B::from_c_ptr(ptr) } {
    // 成功还原Box<T>实例
    println!("Restored value: {:?}", *restored_boxed_value);
  } else {
    // 还原过程中出现错误
    println!("Failed to restore value");
  }
  Ok(())
}