Can we get rid of non-raw write?

[armando sano via Digitalmars-d]

On Wednesday, 15 April 2015 at 17:53:24 UTC, Jürgen Reichmann 
wrote:
> On Wednesday, 15 April 2015 at 15:17:27 UTC, Jürgen Reichmann 
> wrote:
>> On Wednesday, 15 April 2015 at 14:47:46 UTC, armando sano 
>> wrote:
>>> Reviving old topic... It is possible to force stdout to write 
>>> in binary mode on Windows, see 
>>> https://msdn.microsoft.com/en-us/library/tw4k6df8.aspx
>>>
>>> In C, the solution is:
>>>
>>> -----------------------------
>>> #include <stdio.h>
>>> #include <fcntl.h>
>>> #include <io.h>
>>>
>>> /*...*/
>>>
>>> int result = _setmode( _fileno( stdout ), _O_BINARY );
>>> if ( result == -1 )
>>> 	perror ("Cannot set stdout to binary mode");
>>> else
>>> 	perror ("stdout set to binary mode");
>>> ------------------------------
>>>
>>>
>>> In Python, the solution is:
>>>
>>> ------------------------------
>>> import platform
>>> if platform.system() == "Windows":
>>>   import os, msvcrt
>>>   msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
>>> ------------------------------
>>>
>>> Since D can interface C, it must be possible to do the same 
>>> in D? (how, I am not sure)
>>
>> my humble solution:
>>
>> void setFileModeBinary(File f)
>> {
>> 	import std.c.stdlib;
>> 	version(Windows) {
>> 		immutable fd = _fileno(f.getFP);
>> 		f.flush();
>> 		_setmode(fd, _O_BINARY);
>> 		version(DigitalMars) {
>> 			// @@@BUG@@@ 4243
>> 			immutable info = __fhnd_info[fd];
>> 			__fhnd_info[fd] &= ~FHND_TEXT;
>> 		}
>> 	}
>> }
>
> Sorry, solution above is no longer valid.
> Version below works for DMD 2.066 and 2.067 (tested for X86).
>
> void setFileModeBinary(File f, bool setBinary = true)
> {
> 	// extracted from phobos stdio rawWrite
> 	version(Windows) {
> 		import std.stdio, std.c.stdlib;
> 	
> 		f.flush(); // before changing translation mode
> 		immutable fd = _fileno(f.getFP);
>
> 		if (setBinary) {
> 			_setmode(fd, _O_BINARY);
>
> 			version(CRuntime_DigitalMars) { // D2.067
> 				import core.atomic;
>
> 				// @@@BUG@@@ 4243
> 				atomicOp!"&="(__fhnd_info[fd], ~FHND_TEXT);
> 			} else version(DigitalMars) { // D2.066
> 				version (Win32) {
> 					import core.atomic;
>
> 					// @@@BUG@@@ 4243
> 					atomicOp!"&="(__fhnd_info[fd], ~FHND_TEXT);
> 				}
> 			}
> 		} else {
> 			version (MICROSOFT_STDIO) {}
> 			else {
> 				enum _O_TEXT   = 0x4000;
> 			}
> 	
> 			_setmode(fd, _O_TEXT);
>
> 			version(CRuntime_DigitalMars) { // D2.067
> 				import core.atomic;
> 	
> 				// @@@BUG@@@ 4243
> 				atomicOp!"&="(__fhnd_info[fd], ~FHND_TEXT);
> 			} else version(DigitalMars) { // D2.066
> 				version (Win32) {
> 					import core.atomic;
>
> 					// @@@BUG@@@ 4243
> 					atomicOp!"|="(__fhnd_info[fd], FHND_TEXT);
> 				}
> 			}
> 		}
> 	}
> }
>
> IMO a function like this belongs in Phobos stdio
>
> jürgen

Thanks for posting your solution Jürgen, works great! I agree it 
would be a nice addition to stdio (certainly one I was looking 
for for a while)