c3c/test/test_suite/from_docs/examples_functionpointer.c3t

// #target: x64-darwin

module demo;
define Callback = fn int(char* text, int value);

fn int my_callback(char* text, int value)
{
    return 0;
}

Callback cb = &my_callback;

fn void main()
{
    int result = cb("demo", 123);
    // ..
}

// #expect: demo.ll

define i32 @demo.my_callback(i8* %0, i32 %1) #0 {
entry:
  ret i32 0
}

define void @demo.main() #0 {
entry:
  %result = alloca i32, align 4
  %0 = load i32 (i8*, i32)*, i32 (i8*, i32)** @demo.cb, align 8
  %1 = call i32 %0(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i32 0, i32 0), i32 123)
  store i32 %1, i32* %result, align 4
  ret void
}