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Fix long double random

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This commit is contained in:
Charles Schlosser 2024-04-02 12:05:40 +00:00
parent 776d86d8df
commit 86aee3d9c5
2 changed files with 1 additions and 6 deletions
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5
Eigen/src/Core/MathFunctions.h
View File

@ -657,7 +657,6 @@ template <typename BitsType>
struct count_bits_impl<
BitsType, std::enable_if_t<std::is_integral<BitsType>::value && sizeof(BitsType) <= sizeof(unsigned int)>> {
static constexpr int kNumBits = static_cast<int>(sizeof(BitsType) * CHAR_BIT);
static_assert(std::is_integral<BitsType>::value, "BitsType must be a built-in integer");
static EIGEN_DEVICE_FUNC inline int clz(BitsType bits) {
static constexpr int kLeadingBitsOffset = (sizeof(unsigned int) - sizeof(BitsType)) * CHAR_BIT;
return bits == 0 ? kNumBits : __builtin_clz(static_cast<unsigned int>(bits)) - kLeadingBitsOffset;
@ -673,7 +672,6 @@ struct count_bits_impl<BitsType,
std::enable_if_t<std::is_integral<BitsType>::value && sizeof(unsigned int) < sizeof(BitsType) &&
sizeof(BitsType) <= sizeof(unsigned long)>> {
static constexpr int kNumBits = static_cast<int>(sizeof(BitsType) * CHAR_BIT);
static_assert(std::is_integral<BitsType>::value, "BitsType must be a built-in integer");
static EIGEN_DEVICE_FUNC inline int clz(BitsType bits) {
static constexpr int kLeadingBitsOffset = (sizeof(unsigned long) - sizeof(BitsType)) * CHAR_BIT;
return bits == 0 ? kNumBits : __builtin_clzl(static_cast<unsigned long>(bits)) - kLeadingBitsOffset;
@ -689,7 +687,6 @@ struct count_bits_impl<BitsType,
std::enable_if_t<std::is_integral<BitsType>::value && sizeof(unsigned long) < sizeof(BitsType) &&
sizeof(BitsType) <= sizeof(unsigned long long)>> {
static constexpr int kNumBits = static_cast<int>(sizeof(BitsType) * CHAR_BIT);
static_assert(std::is_integral<BitsType>::value, "BitsType must be a built-in integer");
static EIGEN_DEVICE_FUNC inline int clz(BitsType bits) {
static constexpr int kLeadingBitsOffset = (sizeof(unsigned long long) - sizeof(BitsType)) * CHAR_BIT;
return bits == 0 ? kNumBits : __builtin_clzll(static_cast<unsigned long long>(bits)) - kLeadingBitsOffset;
@ -706,7 +703,6 @@ template <typename BitsType>
struct count_bits_impl<
BitsType, std::enable_if_t<std::is_integral<BitsType>::value && sizeof(BitsType) <= sizeof(unsigned long)>> {
static constexpr int kNumBits = static_cast<int>(sizeof(BitsType) * CHAR_BIT);
static_assert(std::is_integral<BitsType>::value, "BitsType must be a built-in integer");
static EIGEN_DEVICE_FUNC inline int clz(BitsType bits) {
unsigned long out;
_BitScanReverse(&out, static_cast<unsigned long>(bits));
@ -727,7 +723,6 @@ struct count_bits_impl<BitsType,
std::enable_if_t<std::is_integral<BitsType>::value && sizeof(unsigned long) < sizeof(BitsType) &&
sizeof(BitsType) <= sizeof(__int64)>> {
static constexpr int kNumBits = static_cast<int>(sizeof(BitsType) * CHAR_BIT);
static_assert(std::is_integral<BitsType>::value, "BitsType must be a built-in integer");
static EIGEN_DEVICE_FUNC inline int clz(BitsType bits) {
unsigned long out;
_BitScanReverse64(&out, static_cast<unsigned __int64>(bits));

2
Eigen/src/Core/RandomImpl.h
View File

@ -139,7 +139,7 @@ struct random_longdouble_impl {
};
template <>
struct random_longdouble_impl<false> {
static constexpr EIGEN_DEVICE_FUNC inline int mantissaBits() { return NumTraits<long double>::digits() - 1; }
static constexpr EIGEN_DEVICE_FUNC inline int mantissaBits() { return NumTraits<double>::digits() - 1; }
static EIGEN_DEVICE_FUNC inline long double run(int numRandomBits) {
return static_cast<long double>(random_float_impl<double>::run(numRandomBits));
}