Hey people how do i compare 2 wave files using c++. can someone tell me the source code pls pls:(?

i would trully appreciate it if someone could help me with this. i wwanna know the syntax. or coding for compairing 2 wave files to see how much they match. i have no clue how to do this.. and this has to be done pretty quiclky because my project mid point is coming soon.. i would really appreciate some help :) thank you soo much