Genetic.h:19: error: expected , or ... before > tokenGenetic.h:19: error: wrong number of template arguments (1, should be 2)/usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../include/c++/4.1.2/bits/stl_pair.h:68: error: provided for template<class _T1, class _T2> struct std::pairGenetic.h:19: error: default argument missing for parameter 4 of GeneNode::GeneNode(GeneNode*, GeneNode*, std::pair<char, int>, int)make: *** [Genetic.o] Error 1#ifndef GENETIC_H#define GENETIC_H#include <iostream>#include <math.h>using namespace std;//TODO templatesstruct GeneNode{ GeneNode* left; GeneNode* right; // represents operator and number (if char == 0 (in this case)) pair<char, int> data; GeneNode(GeneNode* l = NULL, GeneNode* r = NULL, pair<char, int> ch = pair<char, int> (0,0)) : left (l), right(r), data(ch) {} virtual ~GeneNode(); virtual void makeEmpty(); virtual void print (ostream& out = cerr) const { if (left) left->print (out); out << data.first << ":" << data.second << ' '; if (right) right->print (out); }};//.... other class defs also (too lazy to create multiple files at the mo (prototype phase you see))