On 5/3/2011 9:13 AM, Jeroen Habraken wrote:

Hi,

Since boost::convert is promoting itself as an alternative to boost::lexical_cast I decided to port the boost::lexical_cast test suite (which can be found in BOOST_ROOT/libs/conversion/lexical_cast_test.cpp) to boost::convert. I've simply replaced lexical_cast<T>(U) with convert<T>::from(U) and bad_lexical_cast with std::invalid_argument, whether this is a valid approach I'm not sure. To actually get the test suite to compile for boost::convert I had to comment out a lot of them and even then there are quite a few failures. This needs to be looked at (I've attached the code), what are actual boost::convert failures (both at compile- and runtime) and what is caused by my porting?

Hi Jeroen, I think your approach here is quite reasonable for testing convert as a drop-in replacement for lexical_cast. How do the results change when you add .value() to the end to avoid the implicit conversion? I suspect that would fix a lot of the issues. Whether we like having to add that to achieve drop-in compatibility is something to discuss. -Matt