util.h

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#ifndef UTIL_H
#define UTIL_H

#include <iostream>
#include <fstream>   // file I/O
#include <sstream>
#include <stdlib.h>
#include <iomanip>
#include <algorithm>
#include <deque>
#include <list>
#include <queue>
#include <set>
#include <time.h>
#include <stdint.h>
#ifdef PARALLEL
        #include <mpi.h>
#endif

#define t_UnsignedInt uint64_t  
#define t_uint uint64_t 
#define t_MPI_UNSIGNED_INT MPI_UNSIGNED_LONG
#define minval(a,b) (((a)>(b)) ? (b) : (a))

#define maxval(a,b) (((a)<(b)) ? (b) : (a))

using namespace std;


namespace util {

bool   strcmp_ignore_case(string first, string second);
int    current_time(double *t);
string get_time_str();
int    get_proc_id_nump(int &proc_id,int &nump);
void   fast_gcd(double *a, t_UnsignedInt len, double *gcd);
double infnormvec(vector< vector<double> > A);
//int right_nullspace_integer(vector< vector<double> > &A, vector<t_UnsignedInt> prior_cols, t_UnsignedInt int_calc, vector< vector<double> > &K,  vector<t_UnsignedInt> & unused);
int    right_nullspace_integer(vector< vector<double> > &A, vector< vector<double> > &K);
int    right_nullspace_nonint(vector< vector<double> > &A,  vector< vector<double> > &K);
int    swap_rows(vector< vector<double> > &mat, t_UnsignedInt row1, t_UnsignedInt row2);
int    swap_columns(vector< vector<double> > &mat, t_UnsignedInt col1, t_UnsignedInt col2);
t_UnsignedInt row_echelon(vector< vector<double> > mat, t_UnsignedInt reduced, vector<t_UnsignedInt> rowmap, vector<t_UnsignedInt> colmap);
int nullspace(vector< vector<double> > mat,  vector< vector<double> > &kernel);
inline string trim_right(const string &source , const string& t = " ")
{
        string str = source;
        return str.erase( str.find_last_not_of(t) + 1);
}

inline string trim_left( const string& source, const string& t = " ")
{
        string str = source;
        return str.erase(0 , source.find_first_not_of(t) );
}

inline string trim(const string& source, const string& t = " ")
{
        string str = source;
        return trim_left( trim_right( str , t) , t );
}

 bool file_exists(const string &fname );
}

enum direct_enum_score { MIN_METAB_FUNC, ROBUST_DESIGN};

#endif