#include <stdio.h>
#include "maindll.h"

/*
  Use this command to run

  gcc -DBUILD_DLL -shared main.c -o calc.dll -Wl,--out-implib,libcalc.a
 */


int add(int a, int b){
    return a + b;
}
int mul(int a, int b){
    return a * b;
}
int sub(int a, int b){
    return a - b;
}
int divd(int a, int b){
    if(b == 0) return -1;
    return a / b;
}

int calc(int a, int b, char op){
    switch(op){
        case '+': return add(a, b);
        case '-': return sub(a, b);
        case '*': return mul(a, b);
        case '/': return divd(a, b);
    }
}