Here is the full code and error messages:
Code:
#include <iostream>
#include <string>
#include <algorithm>
#include <iomanip>
#include <ios>
#include <vector>
// say what standard-library names we use
using std::cin;
using std::cout;
using std::endl;
using std::string;
using std::max;
using std::setprecision;
using std::sort;
using std::streamsize;
using std::vector;
double median(vector<double> vec)
{
typedef vector<double>::size_type vec_sz;
vec_sz size = vec.size();
sort(vec.begin(), vec.end());
vec_sz mid = size/2;
return size % 2 == 0 ? (vec[mid] + vec[mid-1]) / 2 : vec[mid];
}
double grade(double midterm, double final, double homework)
{
return 0.2 * midterm + 0.4 * final + 0.4 * homework;
}
double grade(double midterm, double final, const vector<double>& hw)
{
return grade(midterm, final, median(hw));
}
istream& read_hw(istream& in, vector<double>& hw)
{
if(in) {
hw.clear();
double x;
while(in >> x)
hw.push_back(x);
in.clear();
}
return in;
}
int main()
{
cout << "Please enter your name: ";
string name;
cin >> name;
cout << "Hello " << name << "!" << endl;
cout << "Please enter your midterm and final exam grades: ";
double midterm, final;
cin >> midterm >> final;
cout << "Enter all your homework grades, "
"followed by end-of-file: ";
vector<double> homework;
read_hw(cin, homework);
double final_grade = grade(midterm, final, homework);
streamsize prec = cout.precision();
cout << "Your final grade is " << setprecision(3)
<< final_grade << setprecision(prec) << endl;
cin.get();
return 0;
}
1>c:\users\darren\documents\visual studio 2008\projects\acceleratedc++\test.cpp(46) : error C2143: syntax error : missing ';' before '&'
1>c:\users\darren\documents\visual studio 2008\projects\acceleratedc++\test.cpp(46) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>c:\users\darren\documents\visual studio 2008\projects\acceleratedc++\test.cpp(46) : error C2065: 'in' : undeclared identifier
1>c:\users\darren\documents\visual studio 2008\projects\acceleratedc++\test.cpp(46) : error C2065: 'hw' : undeclared identifier
1>c:\users\darren\documents\visual studio 2008\projects\acceleratedc++\test.cpp(46) : error C2275: 'std::vector<_Ty>' : illegal use of this type as an expression
As you can see, all errors point to that one line.
Thanks.