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RVec.cxx
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RVec.cxx
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#include "ROOT/RVec.hxx"
using namespace ROOT::VecOps;
/***** FIXME the extra boolean breaks this assert and the two below -- maybe use unused bits in pointer?
// Check that no bytes are wasted and everything is well-aligned.
namespace {
struct Struct16B {
alignas(16) void *X;
};
struct Struct32B {
alignas(32) void *X;
};
} // namespace
static_assert(sizeof(SmallVector<void *, 0>) == sizeof(unsigned) * 2 + sizeof(void *),
"wasted space in RVec size 0");
static_assert(alignof(SmallVector<Struct16B, 0>) >= alignof(Struct16B), "wrong alignment for 16-byte aligned T");
static_assert(alignof(SmallVector<Struct32B, 0>) >= alignof(Struct32B), "wrong alignment for 32-byte aligned T");
static_assert(sizeof(SmallVector<Struct16B, 0>) >= alignof(Struct16B), "missing padding for 16-byte aligned T");
static_assert(sizeof(SmallVector<Struct32B, 0>) >= alignof(Struct32B), "missing padding for 32-byte aligned T");
static_assert(sizeof(SmallVector<void *, 1>) == sizeof(unsigned) * 2 + sizeof(void *) * 2,
"wasted space in SmallVector size 1");
static_assert(sizeof(SmallVector<char, 0>) == sizeof(void *) * 2 + sizeof(void *),
"1 byte elements have word-sized type for size and capacity");
************/
void ROOT::Internal::VecOps::SmallVectorBase::report_size_overflow(size_t MinSize)
{
std::string Reason = "RVec unable to grow. Requested capacity (" + std::to_string(MinSize) +
") is larger than maximum value for size type (" + std::to_string(SizeTypeMax()) + ")";
throw std::length_error(Reason);
}
void ROOT::Internal::VecOps::SmallVectorBase::report_at_maximum_capacity()
{
std::string Reason = "RVec capacity unable to grow. Already at maximum size " + std::to_string(SizeTypeMax());
throw std::length_error(Reason);
}
// Note: Moving this function into the header may cause performance regression.
void ROOT::Internal::VecOps::SmallVectorBase::grow_pod(void *FirstEl, size_t MinSize, size_t TSize)
{
// Ensure we can fit the new capacity.
// This is only going to be applicable when the capacity is 32 bit.
if (MinSize > SizeTypeMax())
report_size_overflow(MinSize);
// Ensure we can meet the guarantee of space for at least one more element.
// The above check alone will not catch the case where grow is called with a
// default MinSize of 0, but the current capacity cannot be increased.
// This is only going to be applicable when the capacity is 32 bit.
if (capacity() == SizeTypeMax())
report_at_maximum_capacity();
// In theory 2*capacity can overflow if the capacity is 64 bit, but the
// original capacity would never be large enough for this to be a problem.
size_t NewCapacity = 2 * capacity() + 1; // Always grow.
NewCapacity = std::min(std::max(NewCapacity, MinSize), SizeTypeMax());
void *NewElts;
if (fBeginX == FirstEl || !this->Owns()) {
NewElts = malloc(NewCapacity * TSize);
// Copy the elements over. No need to run dtors on PODs.
memcpy(NewElts, this->fBeginX, size() * TSize);
} else {
// If this wasn't grown from the inline copy, grow the allocated space.
NewElts = realloc(this->fBeginX, NewCapacity * TSize);
}
this->fBeginX = NewElts;
this->fCapacity = NewCapacity;
}
#if (_VECOPS_USE_EXTERN_TEMPLATES)
namespace ROOT {
namespace VecOps {
#define RVEC_DECLARE_UNARY_OPERATOR(T, OP) \
template RVec<T> operator OP(const RVec<T> &);
#define RVEC_DECLARE_BINARY_OPERATOR(T, OP) \
template auto operator OP(const RVec<T> &v, const T &y) -> RVec<decltype(v[0] OP y)>; \
template auto operator OP(const T &x, const RVec<T> &v) -> RVec<decltype(x OP v[0])>; \
template auto operator OP(const RVec<T> &v0, const RVec<T> &v1) -> RVec<decltype(v0[0] OP v1[0])>;
#define RVEC_DECLARE_LOGICAL_OPERATOR(T, OP) \
template RVec<int> operator OP(const RVec<T> &, const T &); \
template RVec<int> operator OP(const T &, const RVec<T> &); \
template RVec<int> operator OP(const RVec<T> &, const RVec<T> &);
#define RVEC_DECLARE_ASSIGN_OPERATOR(T, OP) \
template RVec<T> &operator OP(RVec<T> &, const T &); \
template RVec<T> &operator OP(RVec<T> &, const RVec<T> &);
#define RVEC_DECLARE_FLOAT_TEMPLATE(T) \
template class RVec<T>; \
RVEC_DECLARE_UNARY_OPERATOR(T, +) \
RVEC_DECLARE_UNARY_OPERATOR(T, -) \
RVEC_DECLARE_UNARY_OPERATOR(T, !) \
RVEC_DECLARE_BINARY_OPERATOR(T, +) \
RVEC_DECLARE_BINARY_OPERATOR(T, -) \
RVEC_DECLARE_BINARY_OPERATOR(T, *) \
RVEC_DECLARE_BINARY_OPERATOR(T, /) \
RVEC_DECLARE_ASSIGN_OPERATOR(T, +=) \
RVEC_DECLARE_ASSIGN_OPERATOR(T, -=) \
RVEC_DECLARE_ASSIGN_OPERATOR(T, *=) \
RVEC_DECLARE_ASSIGN_OPERATOR(T, /=) \
RVEC_DECLARE_LOGICAL_OPERATOR(T, <) \
RVEC_DECLARE_LOGICAL_OPERATOR(T, >) \
RVEC_DECLARE_LOGICAL_OPERATOR(T, ==) \
RVEC_DECLARE_LOGICAL_OPERATOR(T, !=) \
RVEC_DECLARE_LOGICAL_OPERATOR(T, <=) \
RVEC_DECLARE_LOGICAL_OPERATOR(T, >=) \
RVEC_DECLARE_LOGICAL_OPERATOR(T, &&) \
RVEC_DECLARE_LOGICAL_OPERATOR(T, ||)
#define RVEC_DECLARE_INTEGER_TEMPLATE(T) \
template class RVec<T>; \
RVEC_DECLARE_UNARY_OPERATOR(T, +) \
RVEC_DECLARE_UNARY_OPERATOR(T, -) \
RVEC_DECLARE_UNARY_OPERATOR(T, ~) \
RVEC_DECLARE_UNARY_OPERATOR(T, !) \
RVEC_DECLARE_BINARY_OPERATOR(T, +) \
RVEC_DECLARE_BINARY_OPERATOR(T, -) \
RVEC_DECLARE_BINARY_OPERATOR(T, *) \
RVEC_DECLARE_BINARY_OPERATOR(T, /) \
RVEC_DECLARE_BINARY_OPERATOR(T, %) \
RVEC_DECLARE_BINARY_OPERATOR(T, &) \
RVEC_DECLARE_BINARY_OPERATOR(T, |) \
RVEC_DECLARE_BINARY_OPERATOR(T, ^) \
RVEC_DECLARE_ASSIGN_OPERATOR(T, +=) \
RVEC_DECLARE_ASSIGN_OPERATOR(T, -=) \
RVEC_DECLARE_ASSIGN_OPERATOR(T, *=) \
RVEC_DECLARE_ASSIGN_OPERATOR(T, /=) \
RVEC_DECLARE_ASSIGN_OPERATOR(T, %=) \
RVEC_DECLARE_ASSIGN_OPERATOR(T, &=) \
RVEC_DECLARE_ASSIGN_OPERATOR(T, |=) \
RVEC_DECLARE_ASSIGN_OPERATOR(T, ^=) \
RVEC_DECLARE_ASSIGN_OPERATOR(T, >>=) \
RVEC_DECLARE_ASSIGN_OPERATOR(T, <<=) \
RVEC_DECLARE_LOGICAL_OPERATOR(T, <) \
RVEC_DECLARE_LOGICAL_OPERATOR(T, >) \
RVEC_DECLARE_LOGICAL_OPERATOR(T, ==) \
RVEC_DECLARE_LOGICAL_OPERATOR(T, !=) \
RVEC_DECLARE_LOGICAL_OPERATOR(T, <=) \
RVEC_DECLARE_LOGICAL_OPERATOR(T, >=) \
RVEC_DECLARE_LOGICAL_OPERATOR(T, &&) \
RVEC_DECLARE_LOGICAL_OPERATOR(T, ||)
RVEC_DECLARE_INTEGER_TEMPLATE(char)
RVEC_DECLARE_INTEGER_TEMPLATE(short)
RVEC_DECLARE_INTEGER_TEMPLATE(int)
RVEC_DECLARE_INTEGER_TEMPLATE(long)
RVEC_DECLARE_INTEGER_TEMPLATE(long long)
RVEC_DECLARE_INTEGER_TEMPLATE(unsigned char)
RVEC_DECLARE_INTEGER_TEMPLATE(unsigned short)
RVEC_DECLARE_INTEGER_TEMPLATE(unsigned int)
RVEC_DECLARE_INTEGER_TEMPLATE(unsigned long)
RVEC_DECLARE_INTEGER_TEMPLATE(unsigned long long)
RVEC_DECLARE_FLOAT_TEMPLATE(float)
RVEC_DECLARE_FLOAT_TEMPLATE(double)
#define RVEC_DECLARE_UNARY_FUNCTION(T, NAME, FUNC) \
template RVec<PromoteType<T>> NAME(const RVec<T> &);
#define RVEC_DECLARE_STD_UNARY_FUNCTION(T, F) RVEC_DECLARE_UNARY_FUNCTION(T, F, ::std::F)
#define RVEC_DECLARE_BINARY_FUNCTION(T0, T1, NAME, FUNC) \
template RVec<PromoteTypes<T0, T1>> NAME(const RVec<T0> &v, const T1 &y); \
template RVec<PromoteTypes<T0, T1>> NAME(const T0 &x, const RVec<T1> &v); \
template RVec<PromoteTypes<T0, T1>> NAME(const RVec<T0> &v0, const RVec<T1> &v1);
#define RVEC_DECLARE_STD_BINARY_FUNCTION(T, F) RVEC_DECLARE_BINARY_FUNCTION(T, T, F, ::std::F)
#define RVEC_DECLARE_STD_FUNCTIONS(T) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, abs) \
RVEC_DECLARE_STD_BINARY_FUNCTION(T, fdim) \
RVEC_DECLARE_STD_BINARY_FUNCTION(T, fmod) \
RVEC_DECLARE_STD_BINARY_FUNCTION(T, remainder) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, exp) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, exp2) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, expm1) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, log) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, log10) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, log2) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, log1p) \
RVEC_DECLARE_STD_BINARY_FUNCTION(T, pow) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, sqrt) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, cbrt) \
RVEC_DECLARE_STD_BINARY_FUNCTION(T, hypot) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, sin) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, cos) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, tan) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, asin) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, acos) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, atan) \
RVEC_DECLARE_STD_BINARY_FUNCTION(T, atan2) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, sinh) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, cosh) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, tanh) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, asinh) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, acosh) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, atanh) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, floor) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, ceil) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, trunc) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, round) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, lround) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, llround) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, erf) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, erfc) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, lgamma) \
RVEC_DECLARE_STD_UNARY_FUNCTION(T, tgamma) \
RVEC_DECLARE_STD_FUNCTIONS(float)
RVEC_DECLARE_STD_FUNCTIONS(double)
#undef RVEC_DECLARE_STD_UNARY_FUNCTION
#undef RVEC_DECLARE_STD_BINARY_FUNCTION
#undef RVEC_DECLARE_STD_UNARY_FUNCTIONS
#ifdef R__HAS_VDT
#define RVEC_DECLARE_VDT_UNARY_FUNCTION(T, F) \
RVEC_DECLARE_UNARY_FUNCTION(T, F, vdt::F)
RVEC_DECLARE_VDT_UNARY_FUNCTION(float, fast_expf)
RVEC_DECLARE_VDT_UNARY_FUNCTION(float, fast_logf)
RVEC_DECLARE_VDT_UNARY_FUNCTION(float, fast_sinf)
RVEC_DECLARE_VDT_UNARY_FUNCTION(float, fast_cosf)
RVEC_DECLARE_VDT_UNARY_FUNCTION(float, fast_tanf)
RVEC_DECLARE_VDT_UNARY_FUNCTION(float, fast_asinf)
RVEC_DECLARE_VDT_UNARY_FUNCTION(float, fast_acosf)
RVEC_DECLARE_VDT_UNARY_FUNCTION(float, fast_atanf)
RVEC_DECLARE_VDT_UNARY_FUNCTION(double, fast_exp)
RVEC_DECLARE_VDT_UNARY_FUNCTION(double, fast_log)
RVEC_DECLARE_VDT_UNARY_FUNCTION(double, fast_sin)
RVEC_DECLARE_VDT_UNARY_FUNCTION(double, fast_cos)
RVEC_DECLARE_VDT_UNARY_FUNCTION(double, fast_tan)
RVEC_DECLARE_VDT_UNARY_FUNCTION(double, fast_asin)
RVEC_DECLARE_VDT_UNARY_FUNCTION(double, fast_acos)
RVEC_DECLARE_VDT_UNARY_FUNCTION(double, fast_atan)
#endif // R__HAS_VDT
} // namespace VecOps
} // namespace ROOT
#endif // _VECOPS_USE_EXTERN_TEMPLATES