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Fix RS algorithm rewrite typo.

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This commit is contained in:
Milan Broz
2017-04-05 16:29:26 +02:00
parent c6a0048b9b
commit 54cb40fce7
1 changed files with 2 additions and 2 deletions
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4
lib/verity/rs_encode_char.c
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@@ -175,7 +175,7 @@ void encode_rs_char(struct rs *rs, data_t *data, data_t *parity)
memset(parity, 0, rs->nroots * sizeof(data_t));
for (i = 0; i < rs->nroots - rs->pad; i++) {
for (i = 0; i < rs->nn - rs->nroots - rs->pad; i++) {
feedback = rs->index_of[data[i] ^ parity[0]];
if (feedback != A0) {
/* feedback term is non-zero */
@@ -184,7 +184,7 @@ void encode_rs_char(struct rs *rs, data_t *data, data_t *parity)
* always be for the polynomials constructed by init_rs() */
feedback = modnn(rs, rs->nn - rs->genpoly[rs->nroots] + feedback);
#endif
for(j = 1; j < rs->nroots; j++)
for (j = 1; j < rs->nroots; j++)
parity[j] ^= rs->alpha_to[modnn(rs, feedback + rs->genpoly[rs->nroots - j])];
}