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HelperFunctions.cpp

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#include <stdio.h> 
#include <stdarg.h>
#include <math.h>
#include "HelperFunctions.h"


#ifdef WIN32
#define vsnprintf _vsnprintf
#endif

using namespace std;

double SIMILARITY(double x, double y, const double& minVal /*= .1*/)
{
        x = fabs(x);
        y = fabs(y);

        if (x > y)
        {
                if (y == 0)
                        return MIN(minVal, x) / x;
                else
                        return y / x;
        }
        else if (y > x)
        {
                if (x == 0)
                        return MIN(minVal, y) / y;
                else
                        return x / y;
        }

        return 1;
}

LogFile::LogFile(const char* szFileName)
{
        open(szFileName, ios::out | ios::trunc);
}

void LogFile::Print(const char* szFormat, ...)
{
        va_list args;

        va_start(args, szFormat);

        //vfprintf((FILE*)this->rdbuf()->fd(), szFormat, args);
        const int size = 512;
        char szBuff[size];

        vsnprintf(szBuff, size, szFormat, args);
   
        va_end(args);

        (*this) << szBuff;
}

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