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48 changes: 24 additions & 24 deletions ql/math/randomnumbers/burley2020sobolrsg.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -54,26 +54,26 @@ namespace QuantLib {

// for reverseBits() see http://graphics.stanford.edu/~seander/bithacks.html#BitReverseTable

static const std::uint8_t bitReverseTable[] = {
0u, 128u, 64u, 192u, 32u, 160u, 96u, 224u, 16u, 144u, 80u, 208u, 48u, 176u,
112u, 240u, 8u, 136u, 72u, 200u, 40u, 168u, 104u, 232u, 24u, 152u, 88u, 216u,
56u, 184u, 120u, 248u, 4u, 132u, 68u, 196u, 36u, 164u, 100u, 228u, 20u, 148u,
84u, 212u, 52u, 180u, 116u, 244u, 12u, 140u, 76u, 204u, 44u, 172u, 108u, 236u,
28u, 156u, 92u, 220u, 60u, 188u, 124u, 252u, 2u, 130u, 66u, 194u, 34u, 162u,
98u, 226u, 18u, 146u, 82u, 210u, 50u, 178u, 114u, 242u, 10u, 138u, 74u, 202u,
42u, 170u, 106u, 234u, 26u, 154u, 90u, 218u, 58u, 186u, 122u, 250u, 6u, 134u,
70u, 198u, 38u, 166u, 102u, 230u, 22u, 150u, 86u, 214u, 54u, 182u, 118u, 246u,
14u, 142u, 78u, 206u, 46u, 174u, 110u, 238u, 30u, 158u, 94u, 222u, 62u, 190u,
126u, 254u, 1u, 129u, 65u, 193u, 33u, 161u, 97u, 225u, 17u, 145u, 81u, 209u,
49u, 177u, 113u, 241u, 9u, 137u, 73u, 201u, 41u, 169u, 105u, 233u, 25u, 153u,
89u, 217u, 57u, 185u, 121u, 249u, 5u, 133u, 69u, 197u, 37u, 165u, 101u, 229u,
21u, 149u, 85u, 213u, 53u, 181u, 117u, 245u, 13u, 141u, 77u, 205u, 45u, 173u,
109u, 237u, 29u, 157u, 93u, 221u, 61u, 189u, 125u, 253u, 3u, 131u, 67u, 195u,
35u, 163u, 99u, 227u, 19u, 147u, 83u, 211u, 51u, 179u, 115u, 243u, 11u, 139u,
75u, 203u, 43u, 171u, 107u, 235u, 27u, 155u, 91u, 219u, 59u, 187u, 123u, 251u,
7u, 135u, 71u, 199u, 39u, 167u, 103u, 231u, 23u, 151u, 87u, 215u, 55u, 183u,
119u, 247u, 15u, 143u, 79u, 207u, 47u, 175u, 111u, 239u, 31u, 159u, 95u, 223u,
63u, 191u, 127u, 255u};
const std::uint8_t bitReverseTable[] = {
0U, 128U, 64U, 192U, 32U, 160U, 96U, 224U, 16U, 144U, 80U, 208U, 48U, 176U,
112U, 240U, 8U, 136U, 72U, 200U, 40U, 168U, 104U, 232U, 24U, 152U, 88U, 216U,
56U, 184U, 120U, 248U, 4U, 132U, 68U, 196U, 36U, 164U, 100U, 228U, 20U, 148U,
84U, 212U, 52U, 180U, 116U, 244U, 12U, 140U, 76U, 204U, 44U, 172U, 108U, 236U,
28U, 156U, 92U, 220U, 60U, 188U, 124U, 252U, 2U, 130U, 66U, 194U, 34U, 162U,
98U, 226U, 18U, 146U, 82U, 210U, 50U, 178U, 114U, 242U, 10U, 138U, 74U, 202U,
42U, 170U, 106U, 234U, 26U, 154U, 90U, 218U, 58U, 186U, 122U, 250U, 6U, 134U,
70U, 198U, 38U, 166U, 102U, 230U, 22U, 150U, 86U, 214U, 54U, 182U, 118U, 246U,
14U, 142U, 78U, 206U, 46U, 174U, 110U, 238U, 30U, 158U, 94U, 222U, 62U, 190U,
126U, 254U, 1U, 129U, 65U, 193U, 33U, 161U, 97U, 225U, 17U, 145U, 81U, 209U,
49U, 177U, 113U, 241U, 9U, 137U, 73U, 201U, 41U, 169U, 105U, 233U, 25U, 153U,
89U, 217U, 57U, 185U, 121U, 249U, 5U, 133U, 69U, 197U, 37U, 165U, 101U, 229U,
21U, 149U, 85U, 213U, 53U, 181U, 117U, 245U, 13U, 141U, 77U, 205U, 45U, 173U,
109U, 237U, 29U, 157U, 93U, 221U, 61U, 189U, 125U, 253U, 3U, 131U, 67U, 195U,
35U, 163U, 99U, 227U, 19U, 147U, 83U, 211U, 51U, 179U, 115U, 243U, 11U, 139U,
75U, 203U, 43U, 171U, 107U, 235U, 27U, 155U, 91U, 219U, 59U, 187U, 123U, 251U,
7U, 135U, 71U, 199U, 39U, 167U, 103U, 231U, 23U, 151U, 87U, 215U, 55U, 183U,
119U, 247U, 15U, 143U, 79U, 207U, 47U, 175U, 111U, 239U, 31U, 159U, 95U, 223U,
63U, 191U, 127U, 255U};

inline std::uint32_t reverseBits(std::uint32_t x) {
return (bitReverseTable[x & 0xff] << 24) | (bitReverseTable[(x >> 8) & 0xff] << 16) |
Expand All @@ -82,10 +82,10 @@ namespace QuantLib {

inline std::uint32_t laine_karras_permutation(std::uint32_t x, std::uint32_t seed) {
x += seed;
x ^= x * 0x6c50b47cu;
x ^= x * 0xb82f1e52u;
x ^= x * 0xc7afe638u;
x ^= x * 0x8d22f6e6u;
x ^= x * 0x6c50b47cU;
x ^= x * 0xb82f1e52U;
x ^= x * 0xc7afe638U;
x ^= x * 0x8d22f6e6U;
return x;
}

Expand Down
2 changes: 1 addition & 1 deletion ql/math/randomnumbers/sobolrsg.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -78793,7 +78793,7 @@ namespace QuantLib {
}
}
} else {
std::fill(integerSequence_.begin(), integerSequence_.end(), 0u);
std::fill(integerSequence_.begin(), integerSequence_.end(), 0U);
std::uint_least32_t mask = 1;
for (Size index = 0; index < bits_; index++) {
if ((N & mask) != 0U) {
Expand Down