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Update difflogic_kernel.cu #25

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Update difflogic_kernel.cu #25

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4 changes: 2 additions & 2 deletions difflogic/cuda/difflogic_kernel.cu
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Original file line number Diff line number Diff line change
Expand Up @@ -647,14 +647,14 @@ __global__ void groupbitsum_kernel(

typedef typename std::make_unsigned<scalar_t>::type unsigned_scalar_t;
union scalar_t_ {
unsigned_scalar_t unsigned_scalar;
scalar_t signed_scalar;
unsigned_scalar_t unsigned_scalar;
};
constexpr int bit_count = std::numeric_limits<unsigned_scalar_t>::digits;
int res = 0;
const auto class_size = b.size(0) / t.size(0);
for (int i = 0; i < class_size; ++i) {
const scalar_t_ val = {.signed_scalar = b[row * class_size + i][col / bit_count]};
const union scalar_t_ val = {.signed_scalar = b[row * class_size + i][col / bit_count]};
const unsigned_scalar_t bit_mask = static_cast<unsigned_scalar_t>(1) << static_cast<uint32_t>(col % bit_count);
res += !!(val.unsigned_scalar & bit_mask);
}
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