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minor cleanup

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This commit is contained in:
Ahmet Inan 2020-06-14 00:01:37 +02:00
commit c0ab2902e8
1 changed files with 21 additions and 15 deletions
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36
hadamard_decoder.hh
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@ -13,12 +13,12 @@ class HadamardDecoder
{
static const int N = 1 << (K - 1);
public:
int operator()(const int8_t *c)
int operator()(const int8_t *code)
{
int sum[N];
for (int i = 0; i < N; i += 2) {
sum[i] = c[i] + c[i+1];
sum[i+1] = c[i] - c[i+1];
sum[i] = code[i] + code[i+1];
sum[i+1] = code[i] - code[i+1];
}
for (int h = 2; h < N; h *= 2) {
for (int i = 0; i < N; i += 2 * h) {
@ -71,17 +71,19 @@ class HadamardDecoder<3>
static const int K = 3;
static const int N = 1 << (K - 1);
public:
int operator()(const int8_t *c)
int operator()(const int8_t *code)
{
int d[4] = {
c[0] + c[1], c[0] - c[1],
c[2] + c[3], c[2] - c[3],
int tmp[4] = {
code[0] + code[1],
code[0] - code[1],
code[2] + code[3],
code[2] - code[3],
};
int sum[4] = {
d[0] + d[2],
d[1] + d[3],
d[0] - d[2],
d[1] - d[3],
tmp[0] + tmp[2],
tmp[1] + tmp[3],
tmp[0] - tmp[2],
tmp[1] - tmp[3],
};
int word = 0, best = 0, next = 0;
for (int i = 0; i < N; ++i) {
@ -110,10 +112,14 @@ public:
int operator()(const int8_t *c)
{
int d[8] = {
c[0] + c[1], c[0] - c[1],
c[2] + c[3], c[2] - c[3],
c[4] + c[5], c[4] - c[5],
c[6] + c[7], c[6] - c[7],
c[0] + c[1],
c[0] - c[1],
c[2] + c[3],
c[2] - c[3],
c[4] + c[5],
c[4] - c[5],
c[6] + c[7],
c[6] - c[7],
};
int e[8] = {
d[0] + d[2],