1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
#pragma once
#include <algorithm> // for min
#include <array> // for array
#include <cstdint> // for uint8_t
#include <initializer_list> // for initializer_list
#include "Rversion.h"
#include "cpp11/R.hpp" // for RAW, SEXP, SEXPREC, Rf_allocVector
#include "cpp11/attribute_proxy.hpp" // for attribute_proxy
#include "cpp11/protect.hpp" // for safe
#include "cpp11/r_vector.hpp" // for r_vector, r_vector<>::proxy
#include "cpp11/sexp.hpp" // for sexp
// Specializations for raws
namespace cpp11 {
namespace traits {
template <>
struct get_underlying_type<uint8_t> {
using type = Rbyte;
};
} // namespace traits
template <>
inline SEXPTYPE r_vector<uint8_t>::get_sexptype() {
return RAWSXP;
}
template <>
inline typename r_vector<uint8_t>::underlying_type r_vector<uint8_t>::get_elt(
SEXP x, R_xlen_t i) {
// NOPROTECT: likely too costly to unwind protect every elt
return RAW_ELT(x, i);
}
template <>
inline typename r_vector<uint8_t>::underlying_type const* r_vector<uint8_t>::get_const_p(
bool is_altrep, SEXP data) {
return RAW_OR_NULL(data);
}
template <>
inline typename r_vector<uint8_t>::underlying_type* r_vector<uint8_t>::get_p(
bool is_altrep, SEXP data) {
if (is_altrep) {
return nullptr;
} else {
return RAW(data);
}
}
template <>
inline void r_vector<uint8_t>::get_region(SEXP x, R_xlen_t i, R_xlen_t n,
typename r_vector::underlying_type* buf) {
// NOPROTECT: likely too costly to unwind protect here
RAW_GET_REGION(x, i, n, buf);
}
template <>
inline bool r_vector<uint8_t>::const_iterator::use_buf(bool is_altrep) {
return is_altrep;
}
typedef r_vector<uint8_t> raws;
namespace writable {
template <>
inline void r_vector<uint8_t>::set_elt(SEXP x, R_xlen_t i,
typename r_vector::underlying_type value) {
// NOPROTECT: Likely too costly to unwind protect every set elt
#if R_VERSION >= R_Version(4, 2, 0)
SET_RAW_ELT(x, i, value);
#else
RAW(x)[i] = value;
#endif
}
typedef r_vector<uint8_t> raws;
} // namespace writable
} // namespace cpp11
|
