PostGIS  2.5.1dev-r@@SVN_REVISION@@
varint.h
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22  * Copyright (C) 2013 Nicklas Avén
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25 
26 
27 #ifndef _LIBLWGEOM_VARINT_H
28 #define _LIBLWGEOM_VARINT_H 1
29 
30 #include <stdint.h>
31 #include <stdlib.h>
32 
33 
34 /* NEW SIGNATURES */
35 
36 size_t varint_u32_encode_buf(uint32_t val, uint8_t *buf);
37 size_t varint_s32_encode_buf(int32_t val, uint8_t *buf);
38 size_t varint_u64_encode_buf(uint64_t val, uint8_t *buf);
39 size_t varint_s64_encode_buf(int64_t val, uint8_t *buf);
40 int64_t varint_s64_decode(const uint8_t *the_start, const uint8_t *the_end, size_t *size);
41 uint64_t varint_u64_decode(const uint8_t *the_start, const uint8_t *the_end, size_t *size);
42 
43 size_t varint_size(const uint8_t *the_start, const uint8_t *the_end);
44 
45 /* Support from -INT{8,32,64}_MAX to INT{8,32,64}_MAX),
46  * e.g INT8_MIN is not supported in zigzag8 */
47 uint64_t zigzag64(int64_t val);
48 uint32_t zigzag32(int32_t val);
49 uint8_t zigzag8(int8_t val);
50 int64_t unzigzag64(uint64_t val);
51 int32_t unzigzag32(uint32_t val);
52 int8_t unzigzag8(uint8_t val);
53 
54 #endif /* !defined _LIBLWGEOM_VARINT_H */
55 
size_t varint_u32_encode_buf(uint32_t val, uint8_t *buf)
Definition: varint.c:83
int32_t unzigzag32(uint32_t val)
Definition: varint.c:196
size_t varint_size(const uint8_t *the_start, const uint8_t *the_end)
Definition: varint.c:147
int64_t varint_s64_decode(const uint8_t *the_start, const uint8_t *the_end, size_t *size)
Definition: varint.c:102
unsigned int uint32_t
Definition: uthash.h:78
uint8_t zigzag8(int8_t val)
Definition: varint.c:182
uint64_t zigzag64(int64_t val)
Definition: varint.c:168
int64_t unzigzag64(uint64_t val)
Definition: varint.c:189
uint32_t zigzag32(int32_t val)
Definition: varint.c:175
size_t varint_s32_encode_buf(int32_t val, uint8_t *buf)
Definition: varint.c:95
uint64_t varint_u64_decode(const uint8_t *the_start, const uint8_t *the_end, size_t *size)
Definition: varint.c:109
size_t varint_u64_encode_buf(uint64_t val, uint8_t *buf)
Definition: varint.c:76
size_t varint_s64_encode_buf(int64_t val, uint8_t *buf)
Definition: varint.c:89
unsigned char uint8_t
Definition: uthash.h:79
int8_t unzigzag8(uint8_t val)
Definition: varint.c:203