gfs2neff.cpp

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#include <iostream>
#include <fstream>
#include <sstream>
#include <cstring>

using namespace std;

int main(int argc, char**argv){
        if (argc<3){
                cout << "usage gfs2neff <infilename> <nefffilename>" << endl;
                return -1;
        }
        ifstream is(argv[1]);
        if (!is){
                cout << "could read file "<< endl;
                return -1;
        }
        ofstream os(argv[2]);
        if (! os){
                cout << "could write file "<< endl;
                return -1;
        }
        unsigned int frame=0;
        double neff=0;
        while(is){
                        char buf[8192];
                        is.getline(buf, 8192);
                        istringstream lineStream(buf);
                        string recordType;
                        lineStream >> recordType;
                        if (recordType=="FRAME"){
                                lineStream>> frame;
                        }
                        if (recordType=="NEFF"){
                                lineStream>> neff;
                                os << frame << " " << neff << endl;
                        }
        }
        os.close();
}