On 19 Mar 2011, at 20:44, Antony Polukhin wrote:
Working with Boost Lexical Cast library found that some casts are working really slow. For example, cast from short to int is done via cast from short to char[], and cast from char[] to int. Cast from char* to string is done via string() constructor call and string`s append function call (instead of string constructor call with char array as a parameter).
So I wrote patch to Boost Lexical Cast library, that returns Target directly constructed from Source in cases, when: 1) Source and Target are arithmetics (and not char or wchar_t), and all values of Source are in range of Target 2) Source and Target are both char or both wchar_t 3) Source is array of CharT and Target is std::basic_string<CharT, ...> 4) Source and Target are std::basic_string with same template parameters
Just one quick question, does your code have the same behaviour as the existing Lexical Cast when casting out of bounds (int -> unsigned int, int -> short, unsigned int -> int)? Chris