What's wrong with writefln("%s", glGetString(GL_EXTENSIONS));

printf works but not writefln?

How can I get the returned string by GLubyte* glGetString(); into a D char[]?

:) I hope I've expressed myself clear enough. Sorry if I've just wrote incomprehensible garbage.

Cris wrote:

> What's wrong with writefln("%s", glGetString(GL_EXTENSIONS));
> 
> printf works but not writefln?
> 
> How can I get the returned string by GLubyte* glGetString(); into a D char[]?

std.string.toString:

writefln("%s", toString(glGetString(GL_EXTENSIONS)));

--anders

it doesn't work that way: "src\engine\renderer.d(104): cannot implicitly convert expression ((glGetString)(7939u)) of type ubyte* to char*"


Anders F Björklund wrote:
> Cris wrote:
> 
>> What's wrong with writefln("%s", glGetString(GL_EXTENSIONS));
>>
>> printf works but not writefln?
>>
>> How can I get the returned string by GLubyte* glGetString(); into a D char[]?
> 
> std.string.toString:
> 
> writefln("%s", toString(glGetString(GL_EXTENSIONS)));
> 
> --anders

Cris wrote:
> it doesn't work that way: "src\engine\renderer.d(104): cannot implicitly convert expression ((glGetString)(7939u)) of type ubyte* to char*"
> 

Given that its natural type is ubyte* you should be able to do this:

# private import std.string ;
#
# char[] toString (ubyte* foo) {
#   return std.string.toString(cast(char*) foo);
# }

I would think so, anyhow.  If it will not allow a direct cast to char*, you can always add a middle state cast to void* first.

-- Chris Nicholson-Sauls

Thank you, Chris,

I think this will work for me.


Chris Sauls wrote:
> Cris wrote:
>> it doesn't work that way: "src\engine\renderer.d(104): cannot implicitly convert expression ((glGetString)(7939u)) of type ubyte* to char*"
>>
> 
> Given that its natural type is ubyte* you should be able to do this:
> 
> # private import std.string ;
> #
> # char[] toString (ubyte* foo) {
> #   return std.string.toString(cast(char*) foo);
> # }
> 
> I would think so, anyhow.  If it will not allow a direct cast to char*, you can always add a middle state cast to void* first.
> 
> -- Chris Nicholson-Sauls