This adds the back method that return a reference or const reference to
the last char in an sstring.
find_last_of, which return the index of the last occurance of a char in
the string.
And append with append C string to a string.
The logic and definition are similiar to the std::string.
Note that following the std::string definition, calling back on an empty
string is forbiden and the results are undefined.
Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
This patch adds some of the common functionalities from std:string to
sstring.
It adds length (implement by size() )
It define the constant npos to indicate no possition.
It adds the at (reference and const reference)
It define the find char and find sstring methods
and the substr method
Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
need merge sstring
