static char const *const differencing =
"#ifndef KRANC_DIFF_FUNCTIONS\n"
"#  define PDstandard2nd1(u) ((-1.*KRANC_GFOFFSET3D(u,-1,0,0) + KRANC_GFOFFSET3D(u,1,0,0))*p1o2dx)\n"
"#else\n"
"#  define PDstandard2nd1(u) (PDstandard2nd1_impl(u,p1o2dx,cdj,cdk))\n"
"static CCTK_REAL PDstandard2nd1_impl(CCTK_REAL const* restrict const u, CCTK_REAL const p1o2dx, ptrdiff_t const cdj, ptrdiff_t const cdk) CCTK_ATTRIBUTE_NOINLINE CCTK_ATTRIBUTE_UNUSED;\n"
"static CCTK_REAL PDstandard2nd1_impl(CCTK_REAL const* restrict const u, CCTK_REAL const p1o2dx, ptrdiff_t const cdj, ptrdiff_t const cdk)\n"
"{\n"
"  ptrdiff_t const cdi CCTK_ATTRIBUTE_UNUSED = sizeof(CCTK_REAL);\n"
"  return (-1.*KRANC_GFOFFSET3D(u,-1,0,0) + KRANC_GFOFFSET3D(u,1,0,0))*p1o2dx;\n"
"}\n"
"#endif\n"
"\n"
"#ifndef KRANC_DIFF_FUNCTIONS\n"
"#  define PDstandard2nd2(u) ((-1.*KRANC_GFOFFSET3D(u,0,-1,0) + KRANC_GFOFFSET3D(u,0,1,0))*p1o2dy)\n"
"#else\n"
"#  define PDstandard2nd2(u) (PDstandard2nd2_impl(u,p1o2dy,cdj,cdk))\n"
"static CCTK_REAL PDstandard2nd2_impl(CCTK_REAL const* restrict const u, CCTK_REAL const p1o2dy, ptrdiff_t const cdj, ptrdiff_t const cdk) CCTK_ATTRIBUTE_NOINLINE CCTK_ATTRIBUTE_UNUSED;\n"
"static CCTK_REAL PDstandard2nd2_impl(CCTK_REAL const* restrict const u, CCTK_REAL const p1o2dy, ptrdiff_t const cdj, ptrdiff_t const cdk)\n"
"{\n"
"  ptrdiff_t const cdi CCTK_ATTRIBUTE_UNUSED = sizeof(CCTK_REAL);\n"
"  return (-1.*KRANC_GFOFFSET3D(u,0,-1,0) + KRANC_GFOFFSET3D(u,0,1,0))*p1o2dy;\n"
"}\n"
"#endif\n"
"\n"
"#ifndef KRANC_DIFF_FUNCTIONS\n"
"#  define PDstandard2nd3(u) ((-1.*KRANC_GFOFFSET3D(u,0,0,-1) + KRANC_GFOFFSET3D(u,0,0,1))*p1o2dz)\n"
"#else\n"
"#  define PDstandard2nd3(u) (PDstandard2nd3_impl(u,p1o2dz,cdj,cdk))\n"
"static CCTK_REAL PDstandard2nd3_impl(CCTK_REAL const* restrict const u, CCTK_REAL const p1o2dz, ptrdiff_t const cdj, ptrdiff_t const cdk) CCTK_ATTRIBUTE_NOINLINE CCTK_ATTRIBUTE_UNUSED;\n"
"static CCTK_REAL PDstandard2nd3_impl(CCTK_REAL const* restrict const u, CCTK_REAL const p1o2dz, ptrdiff_t const cdj, ptrdiff_t const cdk)\n"
"{\n"
"  ptrdiff_t const cdi CCTK_ATTRIBUTE_UNUSED = sizeof(CCTK_REAL);\n"
"  return (-1.*KRANC_GFOFFSET3D(u,0,0,-1) + KRANC_GFOFFSET3D(u,0,0,1))*p1o2dz;\n"
"}\n"
"#endif\n"
"\n"
"#ifndef KRANC_DIFF_FUNCTIONS\n"
"#  define PDstandard2nd11(u) ((-2.*KRANC_GFOFFSET3D(u,0,0,0) + KRANC_GFOFFSET3D(u,-1,0,0) + KRANC_GFOFFSET3D(u,1,0,0))*p1odx2)\n"
"#else\n"
"#  define PDstandard2nd11(u) (PDstandard2nd11_impl(u,p1odx2,cdj,cdk))\n"
"static CCTK_REAL PDstandard2nd11_impl(CCTK_REAL const* restrict const u, CCTK_REAL const p1odx2, ptrdiff_t const cdj, ptrdiff_t const cdk) CCTK_ATTRIBUTE_NOINLINE CCTK_ATTRIBUTE_UNUSED;\n"
"static CCTK_REAL PDstandard2nd11_impl(CCTK_REAL const* restrict const u, CCTK_REAL const p1odx2, ptrdiff_t const cdj, ptrdiff_t const cdk)\n"
"{\n"
"  ptrdiff_t const cdi CCTK_ATTRIBUTE_UNUSED = sizeof(CCTK_REAL);\n"
"  return (-2.*KRANC_GFOFFSET3D(u,0,0,0) + KRANC_GFOFFSET3D(u,-1,0,0) + KRANC_GFOFFSET3D(u,1,0,0))*p1odx2;\n"
"}\n"
"#endif\n"
"\n"
"#ifndef KRANC_DIFF_FUNCTIONS\n"
"#  define PDstandard2nd22(u) ((-2.*KRANC_GFOFFSET3D(u,0,0,0) + KRANC_GFOFFSET3D(u,0,-1,0) + KRANC_GFOFFSET3D(u,0,1,0))*p1ody2)\n"
"#else\n"
"#  define PDstandard2nd22(u) (PDstandard2nd22_impl(u,p1ody2,cdj,cdk))\n"
"static CCTK_REAL PDstandard2nd22_impl(CCTK_REAL const* restrict const u, CCTK_REAL const p1ody2, ptrdiff_t const cdj, ptrdiff_t const cdk) CCTK_ATTRIBUTE_NOINLINE CCTK_ATTRIBUTE_UNUSED;\n"
"static CCTK_REAL PDstandard2nd22_impl(CCTK_REAL const* restrict const u, CCTK_REAL const p1ody2, ptrdiff_t const cdj, ptrdiff_t const cdk)\n"
"{\n"
"  ptrdiff_t const cdi CCTK_ATTRIBUTE_UNUSED = sizeof(CCTK_REAL);\n"
"  return (-2.*KRANC_GFOFFSET3D(u,0,0,0) + KRANC_GFOFFSET3D(u,0,-1,0) + KRANC_GFOFFSET3D(u,0,1,0))*p1ody2;\n"
"}\n"
"#endif\n"
"\n"
"#ifndef KRANC_DIFF_FUNCTIONS\n"
"#  define PDstandard2nd33(u) ((-2.*KRANC_GFOFFSET3D(u,0,0,0) + KRANC_GFOFFSET3D(u,0,0,-1) + KRANC_GFOFFSET3D(u,0,0,1))*p1odz2)\n"
"#else\n"
"#  define PDstandard2nd33(u) (PDstandard2nd33_impl(u,p1odz2,cdj,cdk))\n"
"static CCTK_REAL PDstandard2nd33_impl(CCTK_REAL const* restrict const u, CCTK_REAL const p1odz2, ptrdiff_t const cdj, ptrdiff_t const cdk) CCTK_ATTRIBUTE_NOINLINE CCTK_ATTRIBUTE_UNUSED;\n"
"static CCTK_REAL PDstandard2nd33_impl(CCTK_REAL const* restrict const u, CCTK_REAL const p1odz2, ptrdiff_t const cdj, ptrdiff_t const cdk)\n"
"{\n"
"  ptrdiff_t const cdi CCTK_ATTRIBUTE_UNUSED = sizeof(CCTK_REAL);\n"
"  return (-2.*KRANC_GFOFFSET3D(u,0,0,0) + KRANC_GFOFFSET3D(u,0,0,-1) + KRANC_GFOFFSET3D(u,0,0,1))*p1odz2;\n"
"}\n"
"#endif\n"
"\n"
""
;