how to read inputs from a file and to write outputs to another file in c++ [closed]

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Hi I not good in c how can i turn my program to read inputs from a file and to write outputs to anothe开发者_StackOverflow中文版r file in c++

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I assume you're looking for C++ code. Have a look at this page, it has nice examples for stream file operations.

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#include <fstream>
#include <string>

int main(){

 //Open file for reading
 std::ifstream in("input.dat");

 //Open file for writing
 std::ofstream out("output.dat");

 //Temporary buffer for line read from file
 std::string line;

 while(getline(in,line)){//getline removes the newline char
      out<<line<<'\n';   // Appending back newline char  
 }
 return 0;
}

Reference