svn tag MacOSX1-3_Spec1-1 same as IOS version

Hi

Today i did a svn checkout of tag MacOSX1-3_Spec1-1. Is this the source 
for the iOS Version as well ?

By taking a look at aolSource.cpp the following lines in bool 
OALSource::ConeAttenuation() can lead to numerical Problems i think:

// calculate the angle between the cone direction vector and the source 
to listener vector
angle = 180.0 * acos (aluDotproduct(vsl, coneDirection))/M_PI; // 
convert from radians to degrees

in my case i set a directional sound source directly into listener "at" 
line,
which should lead to a dot-product equal 1.0.
In real world it leads to 1.0+epsilon and acos() to about 1.0
which mutes my sound source.

Am I correct?
And can this explain my muted sound in iOS4.2.

Thanks in advance
Chris

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