No sound, no nothing on WIndows 8.1 built with MinGW. Instruments are
allocated, but it looks like audio output is simply not produced, not
to file, not to dac.

-----------------------------------------------------
Michael Gogins
Irreducible Productions
http://michaelgogins.tumblr.com

That commit looks like it's just a merge, and the culprit may be:

https://github.com/csound/csound/commit/4d5ec72cb01764bf1045b47f9a82e875f876ab15

I don't know what %la and %a are for formatting. I wonder if just
using %g might be a solution?


On Mon, Mar 27, 2017 at 1:09 AM, Michael Gogins
 wrote:
> No sound, no nothing on WIndows 8.1 built with MinGW. Instruments are
> allocated, but it looks like audio output is simply not produced, not
> to file, not to dac.
>
> -----------------------------------------------------
> Michael Gogins
> Irreducible Productions
> http://michaelgogins.tumblr.com

%a is for hexadecimal floating point. l is for long long int. These
make no sense to me in this context. I will debug this.

Thanks,
Mike

-----------------------------------------------------
Michael Gogins
Irreducible Productions
http://michaelgogins.tumblr.com
Michael dot Gogins at gmail dot com


On Mon, Mar 27, 2017 at 4:29 PM, Steven Yi  wrote:
> That commit looks like it's just a merge, and the culprit may be:
>
> https://github.com/csound/csound/commit/4d5ec72cb01764bf1045b47f9a82e875f876ab15
>
> I don't know what %la and %a are for formatting. I wonder if just
> using %g might be a solution?
>
>
> On Mon, Mar 27, 2017 at 1:09 AM, Michael Gogins
>  wrote:
>> No sound, no nothing on WIndows 8.1 built with MinGW. Instruments are
>> allocated, but it looks like audio output is simply not produced, not
>> to file, not to dac.
>>
>> -----------------------------------------------------
>> Michael Gogins
>> Irreducible Productions
>> http://michaelgogins.tumblr.com

No problem here on OSX, built from commit d426527a4db008b55ee7990be0483e0ed8bb181d

Those changes in fltout look like to do with numeric precision in the score.
========================
Prof. Victor Lazzarini
Dean of Arts, Celtic Studies, and Philosophy,
Maynooth University,
Maynooth, Co Kildare, Ireland
Tel: 00 353 7086936
Fax: 00 353 1 7086952 

> On 27 Mar 2017, at 06:29, Steven Yi  wrote:
> 
> That commit looks like it's just a merge, and the culprit may be:
> 
> https://github.com/csound/csound/commit/4d5ec72cb01764bf1045b47f9a82e875f876ab15
> 
> I don't know what %la and %a are for formatting. I wonder if just
> using %g might be a solution?
> 
> 
> On Mon, Mar 27, 2017 at 1:09 AM, Michael Gogins
>  wrote:
>> No sound, no nothing on WIndows 8.1 built with MinGW. Instruments are
>> allocated, but it looks like audio output is simply not produced, not
>> to file, not to dac.
>> 
>> -----------------------------------------------------
>> Michael Gogins
>> Irreducible Productions
>> http://michaelgogins.tumblr.com

Changing %a and %la to %.9g and %.17g fixed this. I have pushed it. I
think the intention was to print into the corfile floating-point
numbers at maximum precision that can be exactly scanned back in from
text. My changes should do that.

It's possible that just %a would work for me too, but might require
compiler flag changes to work (do we require c99 on MinGW?),

Best,
Mike

-----------------------------------------------------
Michael Gogins
Irreducible Productions
http://michaelgogins.tumblr.com
Michael dot Gogins at gmail dot com


On Mon, Mar 27, 2017 at 4:42 PM, Michael Gogins
 wrote:
> %a is for hexadecimal floating point. l is for long long int. These
> make no sense to me in this context. I will debug this.
>
> Thanks,
> Mike
>
> -----------------------------------------------------
> Michael Gogins
> Irreducible Productions
> http://michaelgogins.tumblr.com
> Michael dot Gogins at gmail dot com
>
>
> On Mon, Mar 27, 2017 at 4:29 PM, Steven Yi  wrote:
>> That commit looks like it's just a merge, and the culprit may be:
>>
>> https://github.com/csound/csound/commit/4d5ec72cb01764bf1045b47f9a82e875f876ab15
>>
>> I don't know what %la and %a are for formatting. I wonder if just
>> using %g might be a solution?
>>
>>
>> On Mon, Mar 27, 2017 at 1:09 AM, Michael Gogins
>>  wrote:
>>> No sound, no nothing on WIndows 8.1 built with MinGW. Instruments are
>>> allocated, but it looks like audio output is simply not produced, not
>>> to file, not to dac.
>>>
>>> -----------------------------------------------------
>>> Michael Gogins
>>> Irreducible Productions
>>> http://michaelgogins.tumblr.com

First, I apologize for my intemperate tone in my original email. I am
tired of fixing things that break on Windows when you change things on
Linux without testing them on Windows, but it is wrong for me to get
mad at you about this, it is caused not by you but by Microsoft not
implementing the C standard in the same way as gcc.

Also combining %a with l is fine.

However, I have investigated this and found that mingw64 does not
implement %a or %la in scanf or sscanf, thus John's code does not work
with MinGW. Apparently this is because mingw64 uses the Microsoft C
runtime library which does not support these format specificers in
scanf or sscanf.

I found also by experiment that atof and strotd will not convert back
from %a or %la with full precision so cannot be used as an alternative
to scanf or sscanf with mingw64. But they will properly convert back
from %.17lg.

These issues may of course change in the future.

I have replaced all %a with %.9g and all %la with %.17lg as I think
this is more maintainable than #ifdefs for MinGW. I have run a test to
ensure that printing with %.17lg can be scanned with the same
specifier to obtain the identical floating point number.

There were not many places where %a was used, as you can see from the
commit diff.

Best,
Mike





-----------------------------------------------------
Michael Gogins
Irreducible Productions
http://michaelgogins.tumblr.com
Michael dot Gogins at gmail dot com


On Mon, Mar 27, 2017 at 9:39 PM, Michael Gogins
 wrote:
> I'm not sure, it may be better to get %a to work, it is supposed to do as
> you intend. Maybe mingw needs different flags. But I think combining %a with
> l is wrong. I will check it all out.
>
> Best,
> Mike
>
> On Mar 27, 2017 8:20 PM, "John ff"  wrote:
>>
>> Are you going to fix the other uses of %a
>>
>> Sent from TypeApp
>> On 27 Mar 2017, at 06:43, Michael Gogins  wrote:
>>>
>>> %a is for hexadecimal floating point. l is for long long int. These
>>> make no sense to me in this context. I will debug this.
>>>
>>> Thanks,
>>> Mike
>>>
>>> ________________________________
>>>
>>> Michael Gogins
>>> Irreducible Productions
>>> http://michaelgogins.tumblr.com
>>> Michael dot Gogins at gmail dot com
>>>
>>>
>>> On Mon, Mar 27, 2017 at 4:29 PM, Steven Yi  wrote:
>>>>
>>>>  That commit looks like it's just a merge, and the culprit may be:
>>>>
>>>>
>>>> https://github.com/csound/csound/commit/4d5ec72cb01764bf1045b47f9a82e875f876ab15
>>>>
>>>>  I don't know what %la and %a are for formatting. I wonder if just
>>>>  using %g might be a solution?
>>>>
>>>>
>>>>  On Mon, Mar 27, 2017 at 1:09 AM, Michael Gogins
>>>>   wrote:
>>>>>
>>>>>  No sound, no nothing on WIndows 8.1 built with MinGW. Instruments are
>>>>>  allocated, but it looks like audio output is simply not produced, not
>>>>>  to file, not to dac.
>>>>>
>>>>> ________________________________
>>>>>
>>>>>  Michael Gogins
>>>>>  Irreducible Productions
>>>>>  http://michaelgogins.tumblr.com