On Thursday, January 05, 2012 20:35:43 Arash Partow wrote:
As for c++11 udsl, basically one can define a suffix for a particular type of string, and a corresponding handler operator, which takes a pointer to the literal and a size (length) value - which is determined at compile-time, hence no need for internal calls to strnlen (multipasses) or inefficient loops of pushing 1 char at-a-time to a stream(file, stdout etc..). [section 3.4] http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2378.pdf
After reading the standard and a few code samples on the net, this looks like an interesting but somewhat dangerous feature. There seem to be no way to specify a namespace for the literal operator, so name clashes are most possible. I could introduce a suffix operator to automatically convert a string literal to a basic_string_literal object, but would that be significantly better than traditional generator functions? string_literal s1 = "abcd"s; vs string_literal s2 = str_literal("abcd"); Note that in the latter case I can specify namespace for the str_literal function while in the former case it's not possible.