Conversion of "char*" to "string"

Beginner Help
1

Greetings. Can you tell me how to convert char* to a string? Can I use printf function to output without converting char* like in C?
I honestly tried to find answers, but my skills were not enough.
I apologise for my English, it’s not my native language, I use a translator.

2

If you have a zero terminated char* then the easiest way is to cast it to a ZString (which is the type for zero terminated strings), and just get a view from it:

char* my_cstring = ...
String my_string = ((ZString)my_cstring).str_view()
3

Regarding printf - if you talk about io::printf then just casting the char* to ZString should make sure it is printed as a string.

char* my_cstring = ...
io::printfn("My string: %s", (ZString)my_cstring);
4

Thank you for the answers. That’s what I wanted to know.

5

Me again, hello. I want to clarify a couple of things.
I took the function (libcurl - curl_version()):
char *curl_version();
Found that the following code compiles and executes successfully:

import std::io;
extern fn String curl_version();

fn void main()
{
    io::printfn("%s", curl_version());
}

Can you tell me why in this example I can substitute String instead of char*? Do you think this is a good practice or is it better to explicitly write char* and then convert?

6

Wow it is amazing that works. Typically in this case you want to model the char * as a ZString which works nicely in C3.