dte test coverage


Directory: ./
File: src/util/strtonum.h
Date: 2025-09-07 23:01:39
Exec Total Coverage
Lines: 20 20 100.0%
Functions: 4 4 100.0%
Branches: 10 10 100.0%

Line Branch Exec Source
1 #ifndef UTIL_STRTONUM_H
2 #define UTIL_STRTONUM_H
3
4 #include <limits.h>
5 #include <stdbool.h>
6 #include <stddef.h>
7 #include <stdint.h>
8 #include "macros.h"
9 #include "string-view.h"
10
11 extern const uint8_t hex_decode_table[64];
12
13 enum {
14 HEX_INVALID = 0xF0,
15 };
16
17 // Decodes a single, hexadecimal digit and returns a numerical value
18 // between 0-15, or HEX_INVALID for invalid digits
19 1068 static inline unsigned int hex_decode(unsigned char c)
20 {
21 1068 c -= '0'; // Lookup table starts at '0'
22 1068 return hex_decode_table[(c < sizeof(hex_decode_table)) ? c : 63];
23 }
24
25 419 static inline bool ascii_isxdigit(unsigned char c)
26 {
27 419 return hex_decode(c) <= 0xF;
28 }
29
30 4 static inline size_t ascii_hex_prefix_length(const char *str, size_t len)
31 {
32 4 size_t i = 0;
33
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163 while (i < len && ascii_isxdigit(str[i])) {
34 159 i++;
35 }
36 4 return i;
37 }
38
39 WARN_UNUSED_RESULT
40 59 static inline size_t buf_parse_hex_uint(const char *str, size_t len, unsigned int *valp)
41 {
42 59 unsigned int val = 0;
43 59 size_t i;
44
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234 for (i = 0; i < len; i++) {
45 184 unsigned int x = hex_decode(str[i]);
46
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184 if (unlikely(x > 0xF)) {
47 break;
48 }
49
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177 if (unlikely(val > (UINT_MAX >> 4))) {
50 return 0; // Overflow
51 }
52 175 val = val << 4 | x;
53 }
54 57 *valp = val;
55 57 return i;
56 }
57
58 size_t size_str_width(size_t x) CONST_FN WARN_UNUSED_RESULT;
59 size_t buf_parse_uintmax(const char *str, size_t len, uintmax_t *valp) WARN_UNUSED_RESULT WRITEONLY(3);
60 size_t buf_parse_ulong(const char *str, size_t len, unsigned long *valp) WARN_UNUSED_RESULT WRITEONLY(3);
61 size_t buf_parse_uint(const char *str, size_t len, unsigned int *valp) WARN_UNUSED_RESULT WRITEONLY(3);
62 size_t buf_parse_size(const char *str, size_t len, size_t *valp) WARN_UNUSED_RESULT WRITEONLY(3);
63 bool str_to_int(const char *str, int *valp) NONNULL_ARGS WARN_UNUSED_RESULT WRITEONLY(2);
64 bool str_to_uint(const char *str, unsigned int *valp) NONNULL_ARGS WARN_UNUSED_RESULT WRITEONLY(2);
65 bool str_to_size(const char *str, size_t *valp) NONNULL_ARGS WARN_UNUSED_RESULT WRITEONLY(2);
66 bool str_to_ulong(const char *str, unsigned long *valp) NONNULL_ARGS WARN_UNUSED_RESULT WRITEONLY(2);
67 bool str_to_filepos(const char *str, size_t *linep, size_t *colp) NONNULL_ARGS WARN_UNUSED_RESULT WRITEONLY(2) WRITEONLY(3);
68 bool str_to_xfilepos(const char *str, size_t *linep, size_t *colp) NONNULL_ARGS WARN_UNUSED_RESULT WRITEONLY(2) WRITEONLY(3);
69 StringView parse_file_line_col(const char *str, size_t *linep, size_t *colp) NONNULL_ARGS WARN_UNUSED_RESULT WRITEONLY(2) WRITEONLY(3);
70 intmax_t parse_filesize(const char *str) NONNULL_ARGS WARN_UNUSED_RESULT;
71
72 #endif
73