38 lines
818 B
C++
38 lines
818 B
C++
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// source file for `Student_info'-related functions
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#include "Student_info.h"
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using std::istream; using std::vector;
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bool compare(const Student_info& x, const Student_info& y)
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{
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return x.name < y.name;
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}
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istream& read(istream& is, Student_info& s)
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{
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// read and store the student's name and midterm and final exam grades
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is >> s.name >> s.midterm >> s.final;
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read_hw(is, s.homework); // read and store all the student's homework grades
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return is;
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}
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// read homework grades from an input stream into a `vector<double>'
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istream& read_hw(istream& in, vector<double>& hw)
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{
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if (in) {
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// get rid of previous contents
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hw.clear();
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// read homework grades
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double x;
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while (in >> x)
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hw.push_back(x);
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// clear the stream so that input will work for the next student
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in.clear();
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}
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return in;
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}
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