Mirror/aicodix___code
1
0
Fork 0
mirror of https://github.com/aicodix/code.git synced 2026-04-27 22:35:44 +00:00
Code Issues Projects Releases Packages Wiki Activity

we have the - operator now

Browse source
This commit is contained in:
Ahmet Inan 2023-06-06 23:06:12 +02:00
commit 60b9dbf2c0
1 changed files with 4 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

8
cauchy_reed_solomon_erasure_coding.hh
View file

@ -44,9 +44,9 @@ struct CauchyReedSolomonErasureCoding
ValueType col_k(ValueType::N - k); ValueType col_k(ValueType::N - k);
prod_xy *= index(rows[j] + col_k) * index(rows[k] + col_i); prod_xy *= index(rows[j] + col_k) * index(rows[k] + col_i);
if (k != j) if (k != j)
prod_x *= index(rows[j] + rows[k]); prod_x *= index(rows[j] - rows[k]);
if (k != i) if (k != i)
prod_y *= index(col_i + col_k); prod_y *= index(col_i - col_k);
} }
return prod_xy / (index(rows[j] + col_i) * prod_x * prod_y); return prod_xy / (index(rows[j] + col_i) * prod_x * prod_y);
#else #else
@ -57,7 +57,7 @@ struct CauchyReedSolomonErasureCoding
ValueType col_k(ValueType::N - k); ValueType col_k(ValueType::N - k);
num *= index(rows[k] + col_i); num *= index(rows[k] + col_i);
if (k != i) if (k != i)
den *= index(col_i + col_k); den *= index(col_i - col_k);
} }
row_num = num; row_num = num;
row_den = den; row_den = den;
@ -67,7 +67,7 @@ struct CauchyReedSolomonErasureCoding
ValueType col_k(ValueType::N - k); ValueType col_k(ValueType::N - k);
num *= index(rows[j] + col_k); num *= index(rows[j] + col_k);
if (k != j) if (k != j)
den *= index(rows[j] + rows[k]); den *= index(rows[j] - rows[k]);
} }
return num / (index(rows[j] + col_i) * den); return num / (index(rows[j] + col_i) * den);
#endif #endif