I need this C++ code converted to C code

#include #include #include

using namespace std;

char *readableTime(long int sec) { // Converts seconds to time format time_t epoch_time = (time_t)sec;// Convert to character format return asctime(localtime(&epoch_time)); }

void readFile() { ifstream rFile1, rFile2; rFile1.open("Data1_in.txt"); rFile2.open("Data1_out.txt"); string data1, data2; long int time1, time2; string message1, message2; string phoneNo1, phoneNo2; rFile1>>time1; rFile2>>time2; rFile1>>phoneNo1; rFile2>>phoneNo2; data1 = readableTime(time1); data2 = readableTime(time2); getline(rFile1, message1); getline(rFile2, message2);

while(!rFile1.eof() && !rFile2.eof()){ if(data1.compare(data2) < 0) { cout<<" "<>time1; rFile1>>phoneNo1; data1 = readableTime(time1); getline(rFile1, message1); }

else {

cout<<" "<>time2; rFile2>>phoneNo2; data2 = readableTime(time2); getline(rFile2, message2); } }

while(!rFile1.eof()){ cout<<" "<>time1; rFile1>>phoneNo1; data1 = readableTime(time1); getline(rFile1, message1); }

while(!rFile2.eof()) { cout<<" "<>time2; rFile2>>phoneNo2; data2 = readableTime(time2); getline(rFile2, message2);} rFile1.close(); rFile2.close(); }

int main(){ readFile(); }