# | Line 97 | Line 97 | class Grid3D { | |
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97 | } | |
98 | private: | |
99 | ||
100 | < | int isValidGrid(unsigned int i, unsigned int j, unsigned int k) { |
100 | > | int isValidGrid(unsigned int i, unsigned int j, unsigned int k) const { |
101 | int index = i * dim2_*dim3_ + j * dim3_ + k; | |
102 | return index < data_.size() ? index : -1; | |
103 | }; |
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