Does anyone know how to convert from character array pointers in c to d strings using Phobos?

llee wrote:
> Does anyone know how to convert from character array pointers in c to d strings using Phobos? 

You can convert any pointer type to an array type using slicing.

import std.c.string;
char* cstr;
string dstr = cstr[0..strlen(cstr)];

Xinok wrote:
> llee wrote:
>> Does anyone know how to convert from character array pointers in c to d strings using Phobos? 
> 
> You can convert any pointer type to an array type using slicing.
> 
> import std.c.string;
> char* cstr;
> string dstr = cstr[0..strlen(cstr)];

Or you can use std.string.toString().  It's cleaner, but slower because it copies the string.

To go the other way, use toStringz().  Or do dstr ~'\0'.

D string literals always have a null terminator appended so you can use them directly with C functions.

"torhu" <no@spam.invalid> wrote in message news:g46fa8$1hli$1@digitalmars.com...
> Xinok wrote:
>> llee wrote:
>>> Does anyone know how to convert from character array pointers in c to d strings using Phobos?
>>
>> You can convert any pointer type to an array type using slicing.
>>
>> import std.c.string;
>> char* cstr;
>> string dstr = cstr[0..strlen(cstr)];
>
> Or you can use std.string.toString().  It's cleaner, but slower because it copies the string.

No is isn't, it does the exact same thing as what was posted above (cstr[0 .. strlen(cstr)]).

Jarrett Billingsley wrote:
> "torhu" <no@spam.invalid> wrote in message news:g46fa8$1hli$1@digitalmars.com...
>> Xinok wrote:
>>> llee wrote:
>>>> Does anyone know how to convert from character array pointers in c to d strings using Phobos?
>>>
>>> You can convert any pointer type to an array type using slicing.
>>>
>>> import std.c.string;
>>> char* cstr;
>>> string dstr = cstr[0..strlen(cstr)];
>>
>> Or you can use std.string.toString().  It's cleaner, but slower because it copies the string.
> 
> No is isn't, it does the exact same thing as what was posted above (cstr[0 ... strlen(cstr)]). 
> 

Aaaaaaaargh!  It's toStringz that copies the string.  Can't remember the last time I was wrong about anything. :(

In my defence, phobos 2.0 toString(char*) does actually copy...

i just want to remember about unicode:
when you pass D char[] to windows API *char
you can use std.windows.charset.toMBSz()

when you pass windows API *char to D char[]
you can use std.windows.charset.fromMBSz()