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school/cs235/exam1/node.cpp

43 Zeilen
1.4 KiB
C++

//Derek McQuay 647465151 CS 235 Fall 2012 midterm 1
#include "node.h"
node::node(const int exponent, const int coefficient, const char variable, node* next) :
exponent(exponent), coefficient(coefficient), variable(variable), next(next) {}
node::node(const int exponent, const char variable, node* next) : //construtor for when coefficient is assumed 1
exponent(exponent), coefficient(1), variable(variable), next(next) {}
ostream & operator<<(ostream & os, node n) { //used to correctly print out each node
if(n.coefficient == 0) {
os << "";
}
else if(n.coefficient == 1 && n.exponent == 0) {
os << n.coefficient;
}
else if(n.coefficient == -1 && n.exponent == 0) {
os << n.coefficient;
}
else if(n.exponent == 0) {
os << n.coefficient;
}
else if(n.coefficient == -1) {
os << "-" << n.variable << " ^ " << n.exponent;
}
else if(n.coefficient < 0 && n.exponent == 1) {
os << n.coefficient << n.variable;
}
else if(n.coefficient == 1 && n.exponent == 1) {
os << n.variable;
}
else if(n.exponent == 1) {
os << n.coefficient << " " << n.variable;
}
else if(n.coefficient == 1) {
os << n.variable << " ^ " << n.exponent;
}
else {
os << n.coefficient << " " << n.variable << " ^ " << n.exponent;
}
return os;
}