#Header

#include "co/defer.h"

#defer

• The defer macro implements functionality similar to defer in golang.
• The defer argument can be one or more statements.

void f() {
    void* p = co::alloc(32);
    defer(co::free(p, 32));

    defer(
        co::println("111");
        co::println("222");
    );
    co::println("333");
}

In the above example, the code in defer will be executed when the function f ends, so 333 is printed before 111 and 222.