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
|
//
// IntVector.m
//
// Created by Giles Payne on 2020/01/04.
//
#import "IntVector.h"
#import <vector>
@implementation IntVector {
std::vector<int> v;
}
-(instancetype)initWithData:(NSData*)data {
self = [super init];
if (self) {
if (data.length % sizeof(int) != 0) {
@throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"Invalid data length" userInfo:nil];
}
v.insert(v.begin(), (int*)data.bytes, (int*)data.bytes + data.length/sizeof(int));
}
return self;
}
-(instancetype)initWithVector:(IntVector*)src {
self = [super init];
if (self) {
v.insert(v.begin(), src.nativeRef.begin(), src.nativeRef.end());
}
return self;
}
-(NSInteger)length {
return v.size();
}
-(int*)nativeArray {
return (int*)v.data();
}
-(instancetype)initWithNativeArray:(int*)array elements:(NSInteger)elements {
self = [super init];
if (self) {
v.insert(v.begin(), array, array + elements);
}
return self;
}
- (std::vector<int>&)nativeRef {
return v;
}
-(instancetype)initWithStdVector:(std::vector<int>&)src {
self = [super init];
if (self) {
v.insert(v.begin(), src.begin(), src.end());
}
return self;
}
+(instancetype)fromNative:(std::vector<int>&)src {
return [[IntVector alloc] initWithStdVector:src];
}
-(int)get:(NSInteger)index {
if (index < 0 || index >= (long)v.size()) {
@throw [NSException exceptionWithName:NSRangeException reason:@"Invalid data length" userInfo:nil];
}
return v[index];
}
-(NSData*)data {
return [NSData dataWithBytesNoCopy:v.data() length:(v.size() * sizeof(int)) freeWhenDone:NO];
}
@end
|
