LogFile.cpp

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#include <ctime>
#include "LogFile.h"

LogFile::LogFile(char *file_name, bool overwrite)
{
    // f = fopen(file_name,"wt");// mode: write text, deprecated
    if (overwrite)
    {
        fopen_s(&f,file_name,"w"); // opens empty file for writing; if it already exists, content is destroyed
    }
    else
    {
        fopen_s(&f,file_name,"a+"); // remove EOF and append text
    }
}

LogFile::~LogFile()
{
    if(f)
        std::fclose(f);
}

void LogFile::print(const char *text)
{
    time_t rawtime;
    struct tm timeinfo;
    char time_str[81];

    std::time (&rawtime);
    localtime_s (&timeinfo, &rawtime);  
    std::strftime(time_str, 80, "%Y-%m-%d-%H:%M:%S", &timeinfo);
    
    if(f)
    {
        std::fprintf(f,"%s\t\t%s\n",time_str,text);
    }
}