formatted_timestring.cc

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#define TF_FORMATTED_TIMESTRING_CC_VERSION \
  "TF_FORMATTED_TIMESTRING_CC   V1.0   "

#include <libtime++.h>
#include <ctime>

namespace libtime {

  std::string TAbsoluteTime::timestring(const std::string& format) const
  {
    const int incr=20;
    const int nstart=format.length()+incr;
    int n=nstart;
    bool success=false;
    struct std::tm timetm;
    timetm.tm_year=this->year()-1900;
    timetm.tm_mon=this->month()-1;
    timetm.tm_mday=this->day();
    timetm.tm_yday=this->doy();
    timetm.tm_hour=this->hour();
    timetm.tm_min=this->minute();
    timetm.tm_sec=this->second();
    timetm.tm_isdst=0;
    timetm.tm_wday=0;
    std::string retval;
    while (!success)
    {
      char* ts=new char[n];
      size_t nret=std::strftime(ts, n, format.c_str(), &timetm);
      retval=std::string(ts);
      delete[] ts;
      if ((nret<(n-1))&&(nret>0))
      {
        success=true;
      }
      else
      {
        n+=incr;
        libtime_assert(n<1000,
                       "ERROR TAbsoluteTime::timestring(): "
                       "time string is unreasonably long");
      }
    }
    return retval;
  }

} // namespace libtime

/* ----- END OF formatted_timestring.cc ----- */