Re: My Explode function(s) are too slow.

Hi,

I need the php equivalent of explode in one of my app.
I read a very big file and "explode" each line to fill a structure.

The reading of the file, 19Mb, (I will also need to streamline the way
I read each line I guess), takes about 10 seconds. But when I 'explode'
each line the process takes about 140 seconds.
This is what I have tried so far...

//-----------------------function A--------------------------
std::vector<std::string> explode(
 const std::string s,
 const std::string separator
)
{
    const int iPit = separator.length();
    std::vector<std::string> ret;
    int iPos = s.find(separator, 0);
    int iStart = 0;

    while(iPos>-1)
    {
        if(iPos!=0){
            ret.push_back(s.substr(iStart,iPos-iStart));
            iStart = (iPos+iPit);
        }
        iPos = s.find(separator, iStart);
    } // end while

    // add the last item if need be.
    if(iStart != s.length()){
        ret.push_back(s.substr(iStart));
    }
    return ret;
}

//-----------------------function B--------------------------
std::vector<std::string> explode(
 const char* s,
 const char separator
)
{
    std::vector<std::string> ret;

    char seps[] = {separator};
    char *token = strtok( (char*)s, seps );
    while( token != NULL )
    {
        ret.push_back( token );
        token = strtok( NULL, seps );
    }
    return ret;
}
//--------------------------------------------------------------------

Function B is slightly faster than function A.

How could I speed up my Explode?