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Replace invalid local id value -1 -> -stencil width. #16

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Replace invalid local id value -1 -> -stencil width. #16

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4 changes: 2 additions & 2 deletions fsgrid.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -382,7 +382,7 @@ template <typename T, int stencil> class FsGrid {
}

/*! Transform global cell coordinates into the local domain.
* If the coordinates are out of bounds, (-1,-1,-1) is returned.
* If the coordinates are out of bounds, (-stencil,-stencil,-stencil) is returned.
* \param x The cell's global x coordinate
* \param y The cell's global y coordinate
* \param z The cell's global z coordinate
Expand All @@ -395,7 +395,7 @@ template <typename T, int stencil> class FsGrid {

if(retval[0] > localSize[0] || retval[1] > localSize[1] || retval[2] > localSize[2]
|| retval[0] < 0 || retval[1] < 0 || retval[2] < 0) {
return {-1,-1,-1};
return {-stencil,-stencil,-stencil};
}

return retval;
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