QString - Where is find_first_not_of?

[lukass]

Hello,

1) Is there any QString function equivalent to

std::string::find_first_of(const std::string & str, 0);

std::string::find_first_of(const std::string & str, 0);

To copy to clipboard, switch view to plain text mode 

?
I want only 'true' or 'false' return value. I don't want position.

2) Yes, I know there are QRegExp, but I want fastest solution.

3) This is my code:

bool find_first_not_of(const QString & chars, const QString & text)
{
  //return true if text not contains any of char in chars
  QString::const_iterator it = text.constBegin();
  QString::const_iterator end = text.constEnd();
  while(it != end)
  {
    if(chars.contains(*it) == false)
        return true;
    ++it;
  }
 
  return false;
}

bool find_first_not_of(const QString & chars, const QString & text)
{
  //return true if text not contains any of char in chars
  QString::const_iterator it = text.constBegin();
  QString::const_iterator end = text.constEnd();
  while(it != end)
  {
    if(chars.contains(*it) == false)
        return true;
    ++it;
  }

  return false;
}

To copy to clipboard, switch view to plain text mode 

This is code with QRegExp:

bool reg_find_first_not_of(const QString & chars, const QString & text)
{
  const QRegExp r("[" + QRegExp::escape(chars) + "]+");
  return !r.exactMatch(text);
}

bool reg_find_first_not_of(const QString & chars, const QString & text)
{
  const QRegExp r("[" + QRegExp::escape(chars) + "]+");
  return !r.exactMatch(text);
}

To copy to clipboard, switch view to plain text mode 

Which code is faster?