[CppAD] Some math functions don't seem to be defined for AD<AD<double>> types

[Mitch Watrous]

Hi.

When I tried to use the latest version of CppAD, I get the following 
error messages:

/usr/local/include/cppad/local/std_math_ad.hpp: In member function 
‘CppAD::AD<Base> CppAD::AD<Base>::sqrt() const [with Base = 
CppAD::AD<double>]’:
/usr/local/include/cppad/local/std_math_ad.hpp:285:   instantiated from 
‘CppAD::AD<Base> CppAD::sqrt(const CppAD::AD<Base>&) [with Base = 
CppAD::AD<double>]’
/usr/local/include/cppad/local/acos_op.hpp:182:   instantiated from 
‘void CppAD::ForAcosOp(size_t, Base*, Base*, const Base*) [with Base = 
CppAD::AD<CppAD::AD<double> >]’
/usr/local/include/cppad/local/forward_sweep.hpp:301:   instantiated 
from ‘size_t CppAD::ForwardSweep(bool, size_t, size_t, 
CppAD::TapeRec<Base>*, size_t, Base*) [with Base = 
CppAD::AD<CppAD::AD<double> >]’
/usr/local/include/cppad/local/fun_construct.hpp:217:   instantiated 
from ‘CppAD::ADFun<Base>::ADFun(const VectorAD&, const VectorAD&) [with 
ADvector = std::vector<CppAD::AD<CppAD::AD<CppAD::AD<double> > >, 
std::allocator<CppAD::AD<CppAD::AD<CppAD::AD<double> > > > >, Base = 
CppAD::AD<CppAD::AD<double> >]’
IndPredModelBase.cpp:1542:   instantiated from ‘void 
IndPredModelBase<Scalar>::evalFAndH_theta() const [with Scalar = 
CppAD::AD<double>]’
IndPredModelBase.cpp:2878:   instantiated from here
/usr/local/include/cppad/local/std_math_ad.hpp:285: error: no matching 
function for call to ‘sqrt(const CppAD::AD<double>&)’
/usr/local/include/cppad/local/base_complex.hpp:202: note: candidates 
are: std::complex<double> CppAD::sqrt(const std::complex<double>&)
/usr/local/include/cppad/local/base_complex.hpp:327: note: 
    std::complex<float> CppAD::sqrt(const std::complex<float>&)
/usr/local/include/cppad/std_math_unary.hpp:127: note: 
float CppAD::sqrt(const float&)
/usr/local/include/cppad/std_math_unary.hpp:127: note: 
double CppAD::sqrt(const double&)
/



Thanks,
Mitch