| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #ifndef UTIL_XSTRING_H | ||
| 2 | #define UTIL_XSTRING_H | ||
| 3 | |||
| 4 | #include <stdbool.h> | ||
| 5 | #include <string.h> | ||
| 6 | #include "ascii.h" | ||
| 7 | #include "debug.h" | ||
| 8 | #include "macros.h" | ||
| 9 | |||
| 10 | // Return true if null-terminated strings a and b are identical | ||
| 11 | NONNULL_ARGS | ||
| 12 | 63807 | static inline bool streq(const char *a, const char *b) | |
| 13 | { | ||
| 14 | 63807 | return strcmp(a, b) == 0; | |
| 15 | } | ||
| 16 | |||
| 17 | // Like streq(), but allowing one or both parameters to be NULL | ||
| 18 | 1836 | static inline bool xstreq(const char *a, const char *b) | |
| 19 | { | ||
| 20 |
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1836 | return (a == b) || (a && b && streq(a, b)); |
| 21 | } | ||
| 22 | |||
| 23 | // Like strrchr(3), but for use when `ch` is known to be present in | ||
| 24 | // `str` (e.g. when searching for '/' in absolute filenames) | ||
| 25 | NONNULL_ARGS_AND_RETURN | ||
| 26 | 7 | static inline const char *xstrrchr(const char *str, int ch) | |
| 27 | { | ||
| 28 | 7 | const char *ptr = strrchr(str, ch); | |
| 29 | 7 | BUG_ON(!ptr); | |
| 30 | 7 | return ptr; | |
| 31 | } | ||
| 32 | |||
| 33 | // See: https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3261.pdf | ||
| 34 | 37501 | static inline bool mem_equal(const void *s1, const void *s2, size_t n) | |
| 35 | { | ||
| 36 | 37501 | BUG_ON(n && (!s1 || !s2)); | |
| 37 |
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37480 | return n == 0 || memcmp(s1, s2, n) == 0; |
| 38 | } | ||
| 39 | |||
| 40 | 64 | static inline bool mem_equal_icase(const void *p1, const void *p2, size_t n) | |
| 41 | { | ||
| 42 |
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64 | if (n == 0) { |
| 43 | return true; | ||
| 44 | } | ||
| 45 | |||
| 46 | 60 | const unsigned char *s1 = p1; | |
| 47 | 60 | const unsigned char *s2 = p2; | |
| 48 | 60 | BUG_ON(!s1 || !s2); | |
| 49 | |||
| 50 |
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231 | while (n--) { |
| 51 |
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207 | if (ascii_tolower(*s1++) != ascii_tolower(*s2++)) { |
| 52 | return false; | ||
| 53 | } | ||
| 54 | } | ||
| 55 | |||
| 56 | return true; | ||
| 57 | } | ||
| 58 | |||
| 59 | #endif | ||
| 60 |