hi, list
here are some personal opinions/thoughts on the convert lib:
1. in most cases, I found directly use of the converter would be more
convenient:
int v = -1; // default value
// no need to give the type of 'v'
bool re = printf_converter()("123", v); // on failure, return
false, and 'v' is untouched
so, I suggest add a default convert function using a default converter:
template
bool convert(Src const& src, Dst& dst)
{
return default_converter()(src, dst);
}
2. besides the generic ones, sprintf/sscanf converter still lacks some
format support from sprintf/sscanf:
for example: auto-determined integer string, plus sign, padding, float
point format, etc.
with most formats being supported, this converter would be the most
powerful, precise and efficient one;
3. printf_converter() uses snprintf(), while on msvc the return value
semantic is not standard conform;
4. printf_converter() uses fixed length char buf, while it is totaly
possible to remove this restrict with a standard conform snprintf();
regards.
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