Thread: ios_base troubles

I have some errors here that I do not know how to fix
prbly somthing simple too

Code:

// prblm 3 pg 538 C++ Primer Plu
// usestok2.cpp -o use the Stock class 
#include <iostream>
using namespace std;
#include "stockh.hpp"

const int STKS = 4; 

int main()
{
 // create an array of initialized objects 
   Stock stocks [STKS] = 
         {
          Stock ("NanoSmart", 12, 20.0),
          Stock("Boffo Objects", 200, 2.0), 
          Stock("Monolithic Obelisks", 130, 3.25), 
          Stock("Fleep Enterprises", 60, 6.5)
         };         
    
    cout.precision(2);	// #.## 
    //errors here
    cout.setf(ios_base::fixed, ios_base::floatfield);// #.## format
    cout.setf(ios_base::showpoint);	// #.## format
    
    cout << "Stock holdings :\n";
    int st;
    for (st=0;  st < STKS;  st++)
        cout << stocks[st];
    Stock top = stocks[0];
    for (st=1;  st < STKS;  st++)
        top = top.topval(stocks[st]);
        cout << "\nMost valuable holding:\n";
        cout << top;
    return 0;
}

here is the complier output
Building Makefile: "C:\Dev-C++\Makefile.win"
Executing make...
make.exe all -f "C:\Dev-C++\Makefile.win"
Execution terminated
g++.exe -c stockm.cpp -o stockm.o -I"C:\Dev-C++\include" -I"C:\Dev-C++\include\g++-3" -I"C:\Dev-C++\include" -s
stockm.cpp: In function `int main()':
stockm.cpp:21: `ios_base' undeclared (first use this function)
stockm.cpp:21: (Each undeclared identifier is reported only once
stockm.cpp:21: for each function it appears in.)
stockm.cpp:21: parse error before `::'
stockm.cpp:22: parse error before `::'
make.exe: *** [stockm.o] Error 1
0

please help!

Thanks a gigabyte!
I had to alter one line to get it working.
cout.precision(2); // this will give you the #.## pt. precision