#[allow(unused)]
struct MathFunc {
add: i32,
sub: i32,
mul: i32,
div: i32,
}
impl MathFunc {
pub fn _add(a: i32, b: i32) -> i32 {
a + b
}
pub fn _sub(a: i32, b: i32) -> i32 {
a - b
}
pub fn _mul(a: i32, b: i32) -> i32 {
a * b
}
pub fn _div(a: i32, b: i32) -> i32 {
a / b
}
}