Function g_ptr_array_find_with_equal_func

pub unsafe extern "C" fn g_ptr_array_find_with_equal_func(
    haystack: *mut GPtrArray,
    needle: *const c_void,
    equal_func: Option<unsafe extern "C" fn(*const c_void, *const c_void) -> i32>,
    index_: *mut u32,
) -> i32