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| author | Jim Meyering <jim@meyering.net> | 1995-05-28 01:47:31 +0000 |
|---|---|---|
| committer | Jim Meyering <jim@meyering.net> | 1995-05-28 01:47:31 +0000 |
| commit | 9cf806d227ec47ec4023467c257843b487c45167 (patch) | |
| tree | c69fb36db2bbb399d5f1b4a71f380252df9a65a5 | |
| parent | a15dfb24f9ea088163da5548a23f081559741f5a (diff) | |
| download | gnulib-9cf806d227ec47ec4023467c257843b487c45167.tar.gz | |
GNU text utilitiesTEXTUTILS-1_11_4b
| -rw-r--r-- | lib/memchr.c | 17 | ||||
| -rw-r--r-- | lib/regex.c | 2 |
2 files changed, 12 insertions, 7 deletions
diff --git a/lib/memchr.c b/lib/memchr.c index 5114869ea5..dc3bec7c85 100644 --- a/lib/memchr.c +++ b/lib/memchr.c @@ -33,6 +33,10 @@ Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ # define __ptr_t char * #endif /* C++ or ANSI C. */ +#if defined (_LIBC) +# include <string.h> +#endif + #if defined (HAVE_LIMITS_H) || defined (_LIBC) # include <limits.h> #endif @@ -62,8 +66,9 @@ memchr (s, c, n) /* Handle the first few characters by reading one character at a time. Do this until CHAR_PTR is aligned on a longword boundary. */ - for (char_ptr = s; n > 0 && ((unsigned long int) char_ptr - & (sizeof (longword) - 1)) != 0; + for (char_ptr = (const unsigned char *) s; + n > 0 && ((unsigned long int) char_ptr + & (sizeof (longword) - 1)) != 0; --n, ++char_ptr) if (*char_ptr == c) return (__ptr_t) char_ptr; @@ -76,9 +81,9 @@ memchr (s, c, n) /* Bits 31, 24, 16, and 8 of this number are zero. Call these bits the "holes." Note that there is a hole just to the left of each byte, with an extra at the end: - + bits: 01111110 11111110 11111110 11111111 - bytes: AAAAAAAA BBBBBBBB CCCCCCCC DDDDDDDD + bytes: AAAAAAAA BBBBBBBB CCCCCCCC DDDDDDDD The 1-bits make sure that carries propagate to the next 0-bit. The 0-bits provide holes for carries to fall into. */ @@ -142,10 +147,10 @@ memchr (s, c, n) /* Add MAGIC_BITS to LONGWORD. */ if ((((longword + magic_bits) - + /* Set those bits that were unchanged by the addition. */ ^ ~longword) - + /* Look at only the hole bits. If any of the hole bits are unchanged, most likely one of the bytes was a zero. */ diff --git a/lib/regex.c b/lib/regex.c index 5a98c6c21a..3581b38dbd 100644 --- a/lib/regex.c +++ b/lib/regex.c @@ -183,7 +183,7 @@ init_syntax_once () #define ISXDIGIT(c) (ISASCII (c) && isxdigit (c)) #ifndef NULL -#define NULL 0 +#define NULL (void *)0 #endif /* We remove any previous definition of `SIGN_EXTEND_CHAR', |