The problem is `sizeof(int)' and not the double samples.
A possible fix in OOps/aops.c:31 is

#if ULONG_MAX == 18446744073709551615UL
#  define POW2MAX   (24.0)
#else
#  define POW2MAX   (15.0)
#endif

tito

On Wed, Jun 27, 2012 at 12:16:56AM +0100, Victor Lazzarini wrote:
> fixed in GIT.
> 
> Victor
> On 26 Jun 2012, at 23:48, Victor Lazzarini wrote:
> 
> > I tried with floats and I see the issue with 2^8; it works with doubles csound. (OSX).
> > 
> > SECTION 1:
> > new alloc for instr 1:
> > instr 1:  ipow = 4.000  ipow2 = 4.000
> > B  0.000 ..  1.000 T  1.000 TT  1.000 M:  0.00000  0.00000
> > instr 1:  ipow = 16.000  ipow2 = 16.000
> > B  1.000 ..  2.000 T  2.000 TT  2.000 M:  0.00000  0.00000
> > instr 1:  ipow = 64.000  ipow2 = 64.000
> > B  2.000 ..  3.000 T  3.000 TT  3.000 M:  0.00000  0.00000
> > instr 1:  ipow = 128.000  ipow2 = 128.000
> > B  3.000 ..  4.000 T  4.000 TT  4.000 M:  0.00000  0.00000
> > instr 1:  ipow = 65536.000  ipow2 = 65536.000
> > B  4.000 ..  5.000 T  5.000 TT  5.000 M:  0.00000  0.00000
> > Score finished in csoundPerform().
> > 
> > Victor
> > On 26 Jun 2012, at 23:31, Oeyvind Brandtsegg wrote:
> > 
> >> Hi,
> >> 
> >> I think there's a bug in powoftwo in 5.17.11 (installer downloaded as
> >> "latest" from sourceforge today).
> >> See the csd below
> >> 
> >> best
> >> Oeyvind
> >> 
> >> <CsoundSynthesizer>
> >> <CsOptions>
> >> -odac
> >> </CsOptions>
> >> <CsInstruments>
> >> 
> >> 	sr = 44100
> >> 	ksmps = 10
> >> 	nchnls = 2
> >> 	0dbfs = 1
> >> 
> >> 	instr	1
> >> 
> >> 	iNum		= p4				
> >> 	ipow		pow 2, iNum	
> >> 	ipow2	= powoftwo(iNum)
> >> 	print ipow, ipow2
> >> 
> >> 	endin
> >> 
> >> </CsInstruments>
> >> <CsScore>
> >> 
> >> ; 	start	dur	num	bits
> >> i1	0	1	2
> >> i1	1	.	4
> >> i1	2	.	6
> >> i1	3	.	7
> >> i1	4	.	8
> >> 
> >> e
> >> 
> >> </CsScore>
> >> </CsoundSynthesizer>
> >> 
> >> 
> >> 
> >> -- 
> >> 
> >> Oeyvind Brandtsegg
> >> Professor of Music Technology
> >> NTNU
> >> 7491 Trondheim
> >> Norway
> >> Cell: +47 92 203 205
> >> 
> >> http://flyndresang.no/
> >> http://www.partikkelaudio.com/
> >> http://soundcloud.com/brandtsegg
> >> http://soundcloud.com/t-emp
> >> 
> >> ------------------------------------------------------------------------------
> >> Live Security Virtual Conference
> >> Exclusive live event will cover all the ways today's security and 
> >> threat landscape has changed and how IT managers can respond. Discussions 
> >> will include endpoint security, mobile security and the latest in malware 
> >> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> >> _______________________________________________
> >> Csound-devel mailing list
> >> Csound-devel@lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/csound-devel
> > 
> > Dr Victor Lazzarini
> > Senior Lecturer
> > Dept. of Music
> > NUI Maynooth Ireland
> > tel.: +353 1 708 3545
> > Victor dot Lazzarini AT nuim dot ie
> > 
> > 
> > 
> > 
> > ------------------------------------------------------------------------------
> > Live Security Virtual Conference
> > Exclusive live event will cover all the ways today's security and 
> > threat landscape has changed and how IT managers can respond. Discussions 
> > will include endpoint security, mobile security and the latest in malware 
> > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> > _______________________________________________
> > Csound-devel mailing list
> > Csound-devel@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/csound-devel
> 
> Dr Victor Lazzarini
> Senior Lecturer
> Dept. of Music
> NUI Maynooth Ireland
> tel.: +353 1 708 3545
> Victor dot Lazzarini AT nuim dot ie
> 
> 
> 
> 
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and 
> threat landscape has changed and how IT managers can respond. Discussions 
> will include endpoint security, mobile security and the latest in malware 
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> _______________________________________________
> Csound-devel mailing list
> Csound-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/csound-devel

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Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
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