Error: expected ")" and primary expression before "if

I am just trying to run this code from a book. I checked more than twice and still getting the two erros mentioned on the title. This code is intended to count how many times a value is repeated from input and if the last value entered is not the same as the previous one, it also has to start the count for this value.

#include <iostream>

    int main()
    {
        int val=0, currVal=0;
        if (std::cin>>currVal){
            int cnt=1;

            while (std::cin>>val){


                (if val==currVal,++cnt)

                else{
                    std::cout<<currVal<<"occurs"<<cnt<<"times"<<std::endl;
                    currVal=val;
                cnt=1;}}

            std::cout<<currVal<<"occurs"<<cnt<<"times"<<std::endl;}



        return 0;
    }