[Blitz-support] Using stencils

[Einar O. <ei...@st...>]

I have a problem using predefined stencils. The program below does not
compile on my SGI using the MIPSpro compiler. I've seen some comments
earlier in the blitz-bug archive, but it didn't make things clearer. How
should I use the predefined templates?

Thanks, Einar Otnes

Test program:


#include <blitz/array.h>

using namespace blitz;

int main()
{
  int const N = 10;

  Array<float,2> junk(N,N);
  Array<float,2> junkDiff(N,N);
  junk = tensor::j;

  junkDiff = central12n(junk,secondDim);
}


Here is the result of my compilation:

 CC   -64 -DBZ_DISABLE_XOPEN_SOURCE -LANG:std -LANG:restrict
-I/private/eiot/Blitz++-0.5 -I../include -O3 -OPT:Olimit=0 -TENV:X=0 -c
testStencil.cpp
cc-1132 CC: ERROR File =
/private/eiot/Blitz++-0.5/blitz/array/stencilops.h, Line = 132
  The class "blitz::Array<float, 2>" has no member "shift".

    return A.shift(1,dim) - A.shift(-1,dim);
             ^
          A template was detected during header processing.
            instantiation of "blitz::Array<float, 2>::T_numtype
                      blitz::central12(blitz::Array<float, 2> &, int)" at
line
                      176
            instantiation of "blitz::Array<float, 2>::T_numtype
                      blitz::central12n(blitz::Array<float, 2> &, int)" at
                      line 14 of "testStencil.cpp"

cc-1132 CC: ERROR File =
/private/eiot/Blitz++-0.5/blitz/array/stencilops.h, Line = 132
  The class "blitz::Array<float, 2>" has no member "shift".

    return A.shift(1,dim) - A.shift(-1,dim);
                              ^
          A template was detected during header processing.
            instantiation of "blitz::Array<float, 2>::T_numtype
                      blitz::central12(blitz::Array<float, 2> &, int)" at
line
                      176
            instantiation of "blitz::Array<float, 2>::T_numtype
                      blitz::central12n(blitz::Array<float, 2> &, int)" at
                      line 14 of "testStencil.cpp"

2 errors detected in the compilation of "testStencil.cpp".
make: *** [testStencil.o] Error 2

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