Ability to create printf()?

[handmade0octopus]

A little bit related to this issue but from other end:
#152

Is it possible to use const char_type* as userdata?

Basically was thinking of implementing something like printf("string %d", x) with variable number of parameters that start with string.

[beltoforion]

I would try using the string function callbacks. (strfun_typeX) They take a string as their first parameter. However the string is treated as a constant and cannot be modified at runtime. You would also need to do the parameter checking on your own.

[handmade0octopus]

But those are only fixed numbers, would it be possible to have one that starts like string (a bit like userdata) but with variable number of parameters?

Otherwise I would need to create a function for and then .defineFun with different names?