how to specify the libstdc++.so.6 to use

Question

how can I print this to an output file and calculate sum and average of these peoples salaries by week and by overall weeks for 4 weeks...

example txt file..

doe       jane
williams  tom
lons      adams

 45.7   56.3   345.6  344.7  // week 1
 43.6   89.0   543.6  12.5   // week 1  person 2
 90.5   78.0  345.4  345.6  //week 1 person 3
 67.5   34.5   56.6   34.5   // week2 person 1
  etc....for 4 weeks..

I know there is an easier way by using loops can I get some help thanks :)

this is what I have so far

#include<iostream>
#include<fstream>
#include<cstdlib>
#include<string>
#include<iomanip>
using namespace std;

int main()
{
ifstream infile;
 ofstream outfile;

double s1, s2, s3 , s4 ,s5;
double t1, t2,t3,t4,t5;
double w1, w2,w3,w4,w5;
string personlast,personfirst,personlast2,personfirst2,personlast3,personfirst3;
double sum, average;
int numberpeople, numberofweeks;

infile.open("data.txt");
outfile.open("output.txt");

outfile<< fixed<< showpoint;
outfile<< setprecision(2);

infile>> numberpeople >> personlast >> personfirst >> personlast2 >> personfirst2>>
  personlast3 >> personfirst3 >> numberofweeks;
outfile<< " The number of salespeople are " << numberpeople <<"they are" <<
personlast << personfirst << "and " <<
 personlast2 << personfirst2 <<
 "and " << personlast3 << personfirst3 <<"Number of weeks = " << numberofweeks;


infile>> s1 >> s2 >> s3 >> s4 >> s5;
outfile <<" sales for week 1  "<< " for" << personlast << personfirst << s1 << s2
<< s3 << s4 << s5 << endl;
sum= s1+s2+s3+s4+s5;
 outfile <<"Sum of first week is " << sum<<endl;

infile >> t1 >> t2 >> t3 >> t4 >> t5;
outfile <<" sales for week 1  "<< " for" << personlast2 << personfirst2 << t1 << t2 
<< t3 << t4 << t5 <<endl;



infile.close();
outfile.close();
return 0;

Solution

Installing gcc puts a libstdc++.so.6 into both $PREXIF/lib and $PREFIX/lib64. Using the latter as RPATH for boost and my program solved the issue. Using only the former results in a fall-back to the system libstdc++.so.6.

Comments

[jma127]

It might help to state what each number within a row represents.

[Basile Starynkevitch]

Why don't you use std::vector-s? With for loops?

[evanmcdonnal]

@BasileStarynkevitch 20 rep says it's for c++ class and you can't use std::vector

[user1766270]

I am very big noob so I do not understand what is std vector is or how it works..

[user1766270]

I need some tutoring willing to pay $20 for an hours worth of C++ help via email...

[user1766270]

@BasileStarynkevitch..would you be willing to tutor via email.thanks

[Alen Milakovic]

What distribution, please?

[janoliver]

Some old CentOS with Linux 2.6.18. I do not have root access.

[vfbsilva]

@janoliver stackoverflow.com/questions/2726993/…

[janoliver]

@vfbsilva: As you can see, I am using the rpath way of specifying the lib directory - doesn't work. Executing my program with LD_LIBRARY_PATH=/secured/local/lib also doesn't work.

[vfbsilva]

@janoliver strange, does your user has access rights over the library folder?

[janoliver]

What do you mean? I can read /usr/lib(64), and write to /secured/local.

[user1766270]

@evanmcdonnal....would you consider tutoring me tonight via email.. i would be willing to pay you $20 for an hour for your time..

[user1766270]

thanks for the bit of code :) but..I need further explanation on what you mean..Like I mentioned would really appreciate some tutoring if you are available tonight.

[evanmcdonnal]

@user1766270 Start by writing some code to read the file line by line using a loop. If you make some progress and edit your post I'll provide further help. Take a look at this to get a start cplusplus.com/doc/tutorial/files