[Stk] STK v. 4.4.3 - Error building using VS2008 (Windows)

[Richard Dobson]

Not sure what you mean by "classically defined"; it is pretty much 
standard in modern unix compilers including gcc, but it is not an 
ANSI-standard mandated symbol (any more than unistd.h is), and in 
Microsoft compilers it and several similar have been defined 
conditionally via the _USE_MATH_DEFINES symbol at least since Visual 
Studio 2005, possibly earlier, but not as far back as VC++v6.

Clearly there can be a lot of legacy code that defines its own symbol 
for Pi etc; so M_PI is not something that can be taken for granted in 
any cross-platform system, and will always need to be checked for one 
way or another. For audio purposes the "standard" M_PI defintion (some 
20 decimal places) is plenty sufficient, but for some precision-critical 
science or maths tasks one may want the extra precision of a long 
double, in which case a custom definition will still likely be needed.


Richard Dobson


On 16/01/2012 04:37, Julius Smith wrote:
> Hi All,
>
> FWIW, M_PI is classically defined in math.h.
>
> - jos
>
> At 06:24 PM 1/15/2012, Gary Scavone wrote:
>> Hi Carlos,
>>
>> Thanks for the various bug reports and
>> fixes.  Yes, the "PluckTwo" class was deprecated
>> in favor of arrays of the new "Twang" class.  I
>> see that I didn't document that very clearly in the release notes.
>>
>> The _USE_MATH_DEFINES thing seems to be an issue
>> for recent versions of Visual Studio.
>>