A simple C++ library which can be used to check if a std::string is an integer value, and return that value. It can also be used to check that a string is only made out of characters in a specified substring.
String Filter是一个简单的C++库,可以用于检查一个标准字符串是否是一个整数值,并返回那个数值。它也可以用于检查一个字符串是否只由指定的子串组成。
来源: http://everest.fit.qut.edu.au/~n2746751/code.shtml