| 1 | /* strings.h: The ABC representation of non-standard C library.
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| 2 | * strings.h is useful but non-standard strings header file.
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| 3 | * Based on C11 Standard.
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| 4 | */
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| 5 | #ifndef _STRINGS_
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| 6 | #define _STRINGS_
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| 7 |
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| 8 | #include <stddef.h>
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| 9 |
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| 10 | /* Functions */
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| 11 |
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| 12 | /* Compare bytes in memory. The bcmp() function compares the
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| 13 | * first n bytes of the area pointed to by s1 (first parameter)
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| 14 | * with the area pointed to by s2(the second parameter).
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| 15 | */
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| 16 | int bcmp(const void *, const void *, size_t);
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| 17 |
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| 18 | /* Copy bytes in memory. The bcopy() function copies n bytes from
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| 19 | * the area pointed to by s1 to the area pointed to by s2
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| 20 | * using the memcpy() function.
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| 21 | */
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| 22 | void bcopy(const void *, void *, size_t);
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| 23 |
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| 24 | /* Zero bytes in memory. The bzero() function places n zero-valued
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| 25 | * bytes in the area pointed to by s(first parameter)
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| 26 | */
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| 27 | void bzero(void *, size_t);
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| 28 |
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| 29 | /* Find first set bit. The ffs() function shall find the first bit
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| 30 | * set (beginning with the least significant bit) in i, and return
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| 31 | * the index of that bit. Bits are numbered starting at
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| 32 | * one (the least significant bit).
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| 33 | */
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| 34 | int ffs(int);
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| 35 |
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| 36 | /* index, rindex - locate character in string.
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| 37 | * The index() function returns a pointer to the
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| 38 | * first occurrence of the character c in the string s.
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| 39 | * The rindex() function returns a pointer to the last
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| 40 | * occurrence of the character c in the string s.
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| 41 | */
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| 42 | char *index(const char *, int);
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| 43 | char *rindex(const char *, int);
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| 44 |
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| 45 | /* strcasecmp, strncasecmp -- case-insensitive string comparisons.
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| 46 | * The strcasecmp() function shall compare, while ignoring differences
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| 47 | * in case, the string pointed to by s1 to the string pointed to by s2.
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| 48 | * The strncasecmp() function shall compare, while ignoring differences in case,
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| 49 | * not more than n bytes from the string pointed to by s1 to the string
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| 50 | * pointed to by s2.
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| 51 | */
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| 52 | int strcasecmp(const char *, const char *);
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| 53 | int strncasecmp(const char *, const char *, size_t);
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| 54 |
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| 55 | #endif
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