* \brief counts the number of identic chars
*
* This function compares the supplyed strings and returns the index of the
* \brief counts the number of identic chars
*
* This function compares the supplyed strings and returns the index of the
* \brief compute the length of the first word in supllyed string
*
* This function searches for the first whitespace in the string and returns the
* \brief compute the length of the first word in supllyed string
*
* This function searches for the first whitespace in the string and returns the
* \brief removes whitespace at the beginning and the end of a string
*
* This function removes whitespaces at the end of a string.
* \param str sting
* \return pointer to the first non-whitespace char in string
*/
* \brief removes whitespace at the beginning and the end of a string
*
* This function removes whitespaces at the end of a string.
* \param str sting
* \return pointer to the first non-whitespace char in string
*/