sc::TwoBodyThreeCenterInt - This is an abstract base type for classes that compute integrals involving

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Version 2.3.1                                    Sun Oct 4 2020                     sc::TwoBodyThreeCenterInt(3)

       This is an abstract base type for classes that compute integrals involving two electrons in three
       Gaussian functions.

virtualconstdouble*sc::TwoBodyThreeCenterInt::buffer(tbint_typetype=eri)const[virtual]
       The computed shell integrals will be put in the buffer returned by this member. Some TwoBodyInt
       specializations have more than one buffer: The type arguments selects which buffer is returned. If the
       requested type is not supported, then 0 is returned.

   virtualvoidsc::TwoBodyThreeCenterInt::compute_shell(int,int,int)[purevirtual]
       Given three shell indices, integrals will be computed and placed in the buffer. The first two indices
       correspond to electron 1 and the second index corresponds to electron 2.

       Implemented in sc::TwoBodyThreeCenterIntV3.

   virtualintsc::TwoBodyThreeCenterInt::log2_shell_bound(int=-1,int=-1,int=-1)[purevirtual]
       Return log base 2 of the maximum magnitude of any integral in a shell block obtained from compute_shell.
       An index of -1 for any argument indicates any shell.

       Implemented in sc::TwoBodyThreeCenterIntV3.

   intsc::TwoBodyThreeCenterInt::redundant()const[inline]
       If redundant is true, then keep redundant integrals in the buffer. The default is true.

       sc::TwoBodyThreeCenterInt - This is an abstract base type for classes that compute integrals involving
       two electrons in three Gaussian functions.

       #include <tbint.h>

       Inherits sc::RefCount.

       Inherited by sc::TwoBodyThreeCenterIntV3.

   PublicTypes
       enum tbint_type { eri =0, r12 =1, r12t1 =2, r12t2 =3 }
           Types of two-body integrals that TwoBodyInt understands: eri stands for electron repulsion integral,
           r12 stands for integrals of r12 operator, r12t1 and r12t2 are integrals of [r12,T1] and [r12,T2]
           operators.

   PublicMemberFunctions
       int nbasis () const
           Return the number of basis functions on center one.
       int nbasis1 () const
           Return the number of basis functions on center one.
       int nbasis2 () const
           Return the number of basis functions on center two.
       int nbasis3 () const
           Return the number of basis functions on center three.
       int nshell () const
           Return the number of shells on center one.
       int nshell1 () const
           Return the number of shells on center one.
       int nshell2 () const
           Return the number of shells on center two.
       int nshell3 () const
           Return the number of shells on center three.
       Ref< GaussianBasisSet > basis ()
           Return the basis set on center one.
       Ref< GaussianBasisSet > basis1 ()
           Return the basis set on center one.
       Ref< GaussianBasisSet > basis2 ()
           Return the basis set on center two.
       Ref< GaussianBasisSet > basis3 ()
           Return the basis set on center three.
       virtual const double * buffer (tbint_type type=eri) const
           The computed shell integrals will be put in the buffer returned by this member.
       virtual void compute_shell (int, int, int)=0
           Given three shell indices, integrals will be computed and placed in the buffer.
       virtual int log2_shell_bound (int=-1, int=-1, int=-1)=0
           Return log base 2 of the maximum magnitude of any integral in a shell block obtained from
           compute_shell.
       int redundant () const
           If redundant is true, then keep redundant integrals in the buffer.
       void set_redundant (int i)
           See redundant().
       virtual void set_integral_storage (size_t storage)
           This storage is used to cache computed integrals.
       Integral * integral () const
           Return the integral factory that was used to create this object.

   StaticPublicAttributes
       static const int num_tbint_types = 4
           The total number of such types.

   ProtectedMemberFunctionsTwoBodyThreeCenterInt (Integral *integral, const Ref< GaussianBasisSet > &bs1, const Ref<
           GaussianBasisSet > &bs2, const Ref< GaussianBasisSet > &bs3)

   ProtectedAttributesIntegral * integral_Ref< GaussianBasisSet > bs1_Ref< GaussianBasisSet > bs2_Ref< GaussianBasisSet > bs3_
       double * buffer_
       int redundant_