/usr/include/libmints/eri.h is in libpsi3-dev 3.4.0-6build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 | #ifndef _psi_src_lib_libmints_eri_h
#define _psi_src_lib_libmints_eri_h
/*!
\file libmints/eri.h
\ingroup MINTS
*/
#include <libmints/ref.h>
#include <libmints/basisset.h>
#include <libmints/gshell.h>
#include <libmints/osrecur.h>
#include <libmints/onebody.h>
#include <libmints/twobody.h>
#include <libmints/integral.h>
#include <libint/libint.h>
#include <libderiv/libderiv.h>
namespace psi {
class ERI : public TwoBodyInt
{
//! Libint object.
Libint_t libint_;
//! Libderiv object
Libderiv_t libderiv_;
//! Maximum cartesian class size.
int max_cart_;
double **d_;
double *denom_;
double wval_infinity_;
int itable_infinity_;
void init_fjt(int);
void int_fjt(double *, int, double);
//! Computes the ERIs between four shells.
void compute_quartet(int, int, int, int);
//! Computes the ERI derivatives between four shells.
void compute_quartet_deriv1(int, int, int, int);
public:
//! Constructor. Use an IntegralFactory to create this object.
ERI(IntegralFactory*, Ref<BasisSet> &, Ref<BasisSet> &, Ref<BasisSet> &, Ref<BasisSet> &, int deriv=0);
~ERI();
/// Compute ERIs between 4 shells. Result is stored in buffer.
void compute_shell(int, int, int, int);
/// Compute ERI derivatives between 4 shells. Result is stored in buffer.
void compute_shell_deriv1(int, int, int, int);
};
class ERI3C {
Ref<ERI> eri_;
public:
ERI3C(IntegralFactory*, Ref<BasisSet> &, Ref<BasisSet> &, Ref<BasisSet> &);
/// Compute 3-center ERI between 3 shells. Result is store in buffer.
void compute_shell(int, int, int);
/// Basis set on center one
Ref<BasisSet> basis() { return eri_->basis(); }
/// Basis set on center one
Ref<BasisSet> basis1() { return eri_->basis1(); }
/// Basis set on center two
Ref<BasisSet> basis2() { return eri_->basis2(); }
/// Basis set on center three (it is a modified form of what was actually sent in)
Ref<BasisSet> basis3() { return eri_->basis3(); }
/// Buffer where the integrals are placed
const double *buffer() const { return eri_->buffer(); };
};
}
#endif
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