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sc::Int2eCints(3)		     MPQC		     sc::Int2eCints(3)

NAME
       sc::Int2eCints -	Int2eCints is an interface to various specializations
       of two-electron integral	evaluators implemented in Cints.

SYNOPSIS
       #include	<int2e.h>

       Inherits	sc::RefCount.

       Inherited by sc::EriCints, and sc::GRTCints.

   Public Member Functions
       Int2eCints (Integral *, const Ref< GaussianBasisSet > &,	const Ref<
	   GaussianBasisSet > &, const Ref< GaussianBasisSet > &, const	Ref<
	   GaussianBasisSet > &, size_t	storage)
       void init_storage (size_t)
	   Sets	storage	limit and starts storage tracking.
       void done_storage ()
	   Finishes storage tracking.
       size_t storage_used () const
	   Reports how much storage is actually	used at	a given	time.
       int redundant ()	const
	   Whether redundant integrals are returned.
       void set_redundant (int flag)
	   Set redundant flag.
       int permute () const
	   Whether shells can be permuted.
       void set_permute	(int flag)
	   Set shell permutation flag.
       virtual void compute_quartet (int *, int	*, int *, int *)=0
	   Evaluate the	target quartet of integrals.
       virtual double *	buffer (TwoBodyInt::tbint_type=TwoBodyInt::eri)	const
	   =0
	   Returns the location	of the buffer with target integrals.
       Ref< GaussianBasisSet > basis ()
       Ref< GaussianBasisSet > basis1 ()
       Ref< GaussianBasisSet > basis2 ()
       Ref< GaussianBasisSet > basis3 ()
       Ref< GaussianBasisSet > basis4 ()

       Public Member Functions inherited from sc::RefCount
       int lock_ptr () const
	   Lock	this object.
       int unlock_ptr () const
	   Unlock this object.
       void use_locks (bool inVal)
	   start and stop using	locks on this object
       refcount_t nreference ()	const
	   Return the reference	count.
       refcount_t reference ()
	   Increment the reference count and return the	new count.
       refcount_t dereference ()
	   Decrement the reference count and return the	new count.
       int managed () const
       void unmanage ()
	   Turn	off the	reference counting mechanism for this object.
       int managed () const
	   Return 1 if the object is managed. Otherwise	return 0.

       Public Member Functions inherited from sc::Identity
       Identifier identifier ()
	   Return the Identifier for this argument.

   Protected Member Functions
       void check_storage_ () const
       void transform_contrquartets_ (double *,	double *)
       void sort_contrquartets_to_shellquartet_	(double	*, double *)
       void permute_target_ (double *, double *, int, int, int)
       void permute_1234_to_1243_ (double *, double *)
       void permute_1234_to_2134_ (double *, double *)
       void permute_1234_to_2143_ (double *, double *)
       void permute_1234_to_3412_ (double *, double *)
       void permute_1234_to_3421_ (double *, double *)
       void permute_1234_to_4312_ (double *, double *)
       void permute_1234_to_4321_ (double *, double *)
       void get_nonredundant_ints_ (double *, double *,	int, int, int)

       Protected Member	Functions inherited from sc::RefCount
       RefCount	(const RefCount	&)
       RefCount	& operator= (const RefCount &)

   Static Protected Member Functions
       static size_t storage_required_ (const Ref< GaussianBasisSet > &b1,
	   const Ref< GaussianBasisSet > &b2=0,	const Ref< GaussianBasisSet >
	   &b3=0, const	Ref< GaussianBasisSet >	&b4=0)

   Protected Attributes
       Integral	* integral_
       Ref< GaussianBasisSet > bs1_
       Ref< GaussianBasisSet > bs2_
       Ref< GaussianBasisSet > bs3_
       Ref< GaussianBasisSet > bs4_
       Ref< MessageGrp > grp_
       GaussianShell * int_shell1_
       GaussianShell * int_shell2_
       GaussianShell * int_shell3_
       GaussianShell * int_shell4_
       int permute_
       int redundant_
       size_t storage_
       size_t storage_used_
       double *	tformbuf_

Detailed Description
       Int2eCints is an	interface to various specializations of	two-electron
       integral	evaluators implemented in Cints.

       It is used by TwoBodyIntCints and TwoBodyDerivIntCints to implement
       IntegralCints.

Member Function	Documentation
   virtual double * sc::Int2eCints::buffer (TwoBodyInt::tbint_type =
       TwoBodyInt::eri)	const [pure virtual]
       Returns the location of the buffer with target integrals.

       Implemented in sc::EriCints, and	sc::GRTCints.

   virtual void	sc::Int2eCints::compute_quartet	(int *,	int *, int *, int *)
       [pure virtual]
       Evaluate	the target quartet of integrals.

       Implemented in sc::EriCints, and	sc::GRTCints.

Author
       Generated automatically by Doxygen for MPQC from	the source code.

Version	2.3.1			Tue May	13 2025		     sc::Int2eCints(3)

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