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-rw-r--r--include/string.h92
-rw-r--r--include/utime.h2
-rw-r--r--libc/misc/time/tm_conv.c2
-rw-r--r--libc/string/Makefile4
-rw-r--r--libc/string/strcasecmp.c4
-rw-r--r--libc/string/strcspn.c72
-rw-r--r--libc/string/string.c18
-rw-r--r--libc/string/strncasecmp.c4
-rw-r--r--libc/string/strpbrk.c4
-rw-r--r--libc/string/strsep.c3
-rw-r--r--libc/string/strspn.c42
-rw-r--r--libc/string/strstr.c155
-rw-r--r--libc/string/strtok.c2
13 files changed, 271 insertions, 133 deletions
diff --git a/include/string.h b/include/string.h
index eb448492e..923005de0 100644
--- a/include/string.h
+++ b/include/string.h
@@ -6,28 +6,56 @@
#include <stddef.h>
/* Basic string functions */
-extern size_t strlen __P ((__const char* __str));
-extern char * strcat __P ((char*, __const char*));
-extern char * strcpy __P ((char*, __const char*));
-extern int strcmp __P ((__const char*, __const char*));
+/* Return the length of S. */
+extern size_t strlen __P ((__const char *__s));
+/* Append SRC onto DEST. */
+extern char *strcat __P ((char *__restrict __dest,
+ __const char *__restrict __src));
+/* Append no more than N characters from SRC onto DEST. */
+extern char *strncat __P ((char *__restrict __dest,
+ __const char *__restrict __src, size_t __n));
-extern char * strncat __P ((char*, __const char*, size_t));
-extern char * strncpy __P ((char*, __const char*, size_t));
-extern int strncmp __P ((__const char*, __const char*, size_t));
+/* Copy SRC to DEST. */
+extern char *strcpy __P ((char *__restrict __dest,
+ __const char *__restrict __src));
+/* Copy no more than N characters of SRC to DEST. */
+extern char *strncpy __P ((char *__restrict __dest,
+ __const char *__restrict __src, size_t __n));
-extern char * strchr __P ((char*, int));
-extern char * strrchr __P ((char*, int));
-extern char * strdup __P ((__const char*));
+/* Compare S1 and S2. */
+extern int strcmp __P ((__const char *__s1, __const char *__s2));
+/* Compare N characters of S1 and S2. */
+extern int strncmp __P ((__const char *__s1, __const char *__s2, size_t __n));
+
+/* Find the first occurrence of C in S. */
+extern char *strchr __P ((__const char *__s, int __c));
+/* Find the last occurrence of C in S. */
+extern char *strrchr __P ((__const char *__s, int __c));
+/* Duplicate S, returning an identical malloc'd string. */
+extern char *strdup __P ((__const char *__s));
/* Basic mem functions */
-extern void * memcpy __P ((void*, __const void*, size_t));
-extern void * memccpy __P ((void*, void*, int, size_t));
-extern void * memchr __P ((__const void*, __const int, size_t));
-extern void * memset __P ((void*, int, size_t));
-extern int memcmp __P ((__const void*, __const void*, size_t));
-extern void * memmove __P ((void*, void*, size_t));
+/* Copy N bytes of SRC to DEST. */
+extern __ptr_t memcpy __P ((__ptr_t __restrict __dest,
+ __const __ptr_t __restrict __src, size_t __n));
+/* Copy no more than N bytes of SRC to DEST, stopping when C is found.
+ Return the position in DEST one byte past where C was copied,
+ or NULL if C was not found in the first N bytes of SRC. */
+extern __ptr_t memccpy __P ((__ptr_t __dest, __const __ptr_t __src,
+ int __c, size_t __n));
+/* Search N bytes of S for C. */
+extern __ptr_t memchr __P ((__const __ptr_t __s, int __c, size_t __n));
+/* Set N bytes of S to C. */
+extern __ptr_t memset __P ((__ptr_t __s, int __c, size_t __n));
+/* Compare N bytes of S1 and S2. */
+extern int memcmp __P ((__const __ptr_t __s1, __const __ptr_t __s2,
+ size_t __n));
+/* Copy N bytes of SRC to DEST, guaranteeing
+ correct behavior for overlapping strings. */
+extern __ptr_t memmove __P ((__ptr_t __dest, __const __ptr_t __src,
+ size_t __n));
/* Minimal (very!) locale support */
#define strcoll strcmp
@@ -38,14 +66,30 @@ extern void * memmove __P ((void*, void*, size_t));
#define rindex strrchr
/* Other common BSD functions */
-extern int strcasecmp __P ((char*, char*));
-extern int strncasecmp __P ((char*, char*, size_t));
-char *strpbrk __P ((char *, char *));
-char *strsep __P ((char **, char *));
-char *strstr __P ((char *, char *));
-char *strtok __P ((char *, char *));
-size_t strcspn __P ((char *, char *));
-size_t strspn __P ((char *, char *));
+
+/* Compare S1 and S2, ignoring case. */
+extern int strcasecmp __P ((__const char *__s1, __const char *__s2));
+/* Compare no more than N chars of S1 and S2, ignoring case. */
+extern int strncasecmp __P ((__const char *__s1, __const char *__s2,
+ size_t __n));
+/* Find the first occurrence in S of any character in ACCEPT. */
+extern char *strpbrk __P ((__const char *__s, __const char *__accept));
+/* Return the next DELIM-delimited token from *STRINGP,
+ terminating it with a '\0', and update *STRINGP to point past it. */
+extern char *strsep __P ((char **__restrict __stringp,
+ __const char *__restrict __delim));
+/* Find the first occurrence of NEEDLE in HAYSTACK. */
+extern char *strstr __P ((__const char *__haystack, __const char *__needle));
+/* Divide S into tokens separated by characters in DELIM. */
+extern char *strtok __P ((char *__restrict __s,
+ __const char *__restrict __delim));
+/* Return the length of the initial segment of S which
+ consists entirely of characters not in REJECT. */
+extern size_t strcspn __P ((__const char *__s, __const char *__reject));
+/* Return the length of the initial segment of S which
+ consists entirely of characters in ACCEPT. */
+extern size_t strspn __P ((__const char *__s, __const char *__accept));
+
/* More BSD compatabilty */
#define bcmp memcmp
diff --git a/include/utime.h b/include/utime.h
index 7f82b9fa6..687e1348e 100644
--- a/include/utime.h
+++ b/include/utime.h
@@ -9,7 +9,7 @@ struct utimbuf {
time_t modtime;
};
-extern int utime __P ((char *__filename, struct utimbuf *__utimebuf));
+extern int utime __P ((const char *__filename, struct utimbuf *__utimebuf));
#endif
diff --git a/libc/misc/time/tm_conv.c b/libc/misc/time/tm_conv.c
index ffd524c4b..ec0073294 100644
--- a/libc/misc/time/tm_conv.c
+++ b/libc/misc/time/tm_conv.c
@@ -91,7 +91,7 @@ time_t offset;
{
long days, rem;
register int y;
- register unsigned short int *ip;
+ register const unsigned short int *ip;
days = *t / SECS_PER_DAY;
rem = *t % SECS_PER_DAY;
diff --git a/libc/string/Makefile b/libc/string/Makefile
index 251948183..b190adb0f 100644
--- a/libc/string/Makefile
+++ b/libc/string/Makefile
@@ -12,12 +12,12 @@ SOBJ=strlen.o strcat.o strcpy.o strcmp.o strncat.o strncpy.o strncmp.o \
strchr.o strrchr.o strdup.o memcpy.o memccpy.o memchr.o memset.o \
memcmp.o memmove.o movedata.o
-OBJ=$(SOBJ) strpbrk.o strsep.o strstr.o strtok.o strcspn.o \
+OBJ=strpbrk.o strsep.o strstr.o strtok.o strcspn.o \
strspn.o strcasecmp.o strncasecmp.o config.o
all: $(LIBC)
-$(LIBC): $(LIBC)($(OBJ))
+$(LIBC): $(LIBC)($(SOBJ)) $(OBJ)
$(LIBC)($(SOBJ)): $(SSRC)
$(CC) $(CFLAGS) -DL_$* $< -c -o $*.o
diff --git a/libc/string/strcasecmp.c b/libc/string/strcasecmp.c
index 0e7b0388f..c6144ff23 100644
--- a/libc/string/strcasecmp.c
+++ b/libc/string/strcasecmp.c
@@ -8,8 +8,8 @@
int
strcasecmp(s, d)
-char *s;
-char *d;
+const char *s;
+const char *d;
{
for(;;)
{
diff --git a/libc/string/strcspn.c b/libc/string/strcspn.c
index 619c8be6b..3630a1333 100644
--- a/libc/string/strcspn.c
+++ b/libc/string/strcspn.c
@@ -1,32 +1,50 @@
-/* strcspn.c */
+/* Copyright (C) 1991, 1994, 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-/* from Schumacher's Atari library, improved */
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
-#include <string.h>
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
-size_t strcspn(string, set)
-register char *string;
-char *set;
-/*
- * Return the length of the sub-string of <string> that consists
- * entirely of characters not found in <set>. The terminating '\0'
- * in <set> is not considered part of the match set. If the first
- * character if <string> is in <set>, 0 is returned.
- */
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#if defined _LIBC || HAVE_STRING_H
+# include <string.h>
+#else
+# include <strings.h>
+# ifndef strchr
+# define strchr index
+# endif
+#endif
+
+#undef strcspn
+
+/* Return the length of the maximum initial segment of S
+ which contains no characters from REJECT. */
+size_t
+strcspn (s, reject)
+ const char *s;
+ const char *reject;
{
- register char *setptr;
- char *start;
-
- start = string;
- while (*string)
- {
- setptr = set;
- do
- if (*setptr == *string)
- goto break2;
- while (*setptr++);
- ++string;
- }
-break2:
- return string - start;
+ size_t count = 0;
+
+ while (*s != '\0')
+ if (strchr (reject, *s++) == NULL)
+ ++count;
+ else
+ return count;
+
+ return count;
}
diff --git a/libc/string/string.c b/libc/string/string.c
index 664929b22..0025cec2b 100644
--- a/libc/string/string.c
+++ b/libc/string/string.c
@@ -270,7 +270,7 @@ lp4:
#ifdef L_strchr
char *
strchr(s, c)
-char * s;
+const char * s;
int c;
{
#ifdef BCC_AX_ASM
@@ -307,7 +307,7 @@ got_it:
register char ch;
for(;;)
{
- if( (ch= *s) == c ) return s;
+ if( (ch= *s) == c ) return (char*)s;
if( ch == 0 ) return 0;
s++;
}
@@ -319,11 +319,11 @@ got_it:
#ifdef L_strrchr
char * strrchr(s, c)
-char * s;
+const char * s;
int c;
{
register char * prev = 0;
- register char * p = s;
+ register char * p = (char*)s;
/* For null it's just like strlen */
if( c == '\0' ) return p+strlen(p);
@@ -414,11 +414,12 @@ size_t l;
#ifdef L_memccpy
void * memccpy(d, s, c, l) /* Do we need a fast one ? */
-void *s, *d;
+void *d;
+const void *s;
int c;
size_t l;
{
- register char *s1=d, *s2=s;
+ register char *s1=d, *s2=(char*)s;
while(l-- > 0)
if((*s1++ = *s2++) == c )
return s1;
@@ -598,10 +599,11 @@ xit:
#ifdef L_memmove
void *
memmove(d, s, l)
-void *d, *s;
+void *d;
+const void *s;
size_t l;
{
- register char *s1=d, *s2=s;
+ register char *s1=d, *s2=(char*)s;
/* This bit of sneakyness c/o Glibc, it assumes the test is unsigned */
if( s1-s2 >= l ) return memcpy(d,s,l);
diff --git a/libc/string/strncasecmp.c b/libc/string/strncasecmp.c
index 561f72a76..c55f259d4 100644
--- a/libc/string/strncasecmp.c
+++ b/libc/string/strncasecmp.c
@@ -8,8 +8,8 @@
int
strncasecmp(s, d, l)
-char *s;
-char *d;
+const char *s;
+const char *d;
size_t l;
{
while(l>0)
diff --git a/libc/string/strpbrk.c b/libc/string/strpbrk.c
index 3fc27ec70..7e6b1a4a2 100644
--- a/libc/string/strpbrk.c
+++ b/libc/string/strpbrk.c
@@ -8,8 +8,8 @@
/* This uses strchr, strchr should be in assembler */
char *strpbrk(str, set)
-register char *str;
-char *set;
+register const char *str;
+const char *set;
{
while (*str != '\0')
if (strchr(set, *str) == 0)
diff --git a/libc/string/strsep.c b/libc/string/strsep.c
index 703fe5c69..f4fdf503e 100644
--- a/libc/string/strsep.c
+++ b/libc/string/strsep.c
@@ -18,10 +18,11 @@ Cambridge, MA 02139, USA. */
#include <string.h>
+
char *
strsep(pp, delim)
char **pp;
-char *delim;
+const char *delim;
{
char *p, *q;
diff --git a/libc/string/strspn.c b/libc/string/strspn.c
index 2094caa86..5f64a6f75 100644
--- a/libc/string/strspn.c
+++ b/libc/string/strspn.c
@@ -1,33 +1,35 @@
-/* Copyright (C) 1992, 1993 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+/* Copyright (C) 1991, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#include <string.h>
+#undef strspn
+
/* Return the length of the maximum initial segment
of S which contains only characters in ACCEPT. */
size_t
-strspn(s, accept)
-char *s;
-char *accept;
+strspn (s, accept)
+ const char *s;
+ const char *accept;
{
- register char *p;
- register char *a;
- register size_t count = 0;
+ const char *p;
+ const char *a;
+ size_t count = 0;
for (p = s; *p != '\0'; ++p)
{
diff --git a/libc/string/strstr.c b/libc/string/strstr.c
index 3c853ac52..03d6c8e5f 100644
--- a/libc/string/strstr.c
+++ b/libc/string/strstr.c
@@ -1,54 +1,125 @@
-/* Copyright (C) 1995,1996 Robert de Bath <rdebath@cix.compulink.co.uk>
- * This file is part of the Linux-8086 C library and is distributed
- * under the GNU Library General Public License.
- */
+/* Return the offset of one string within another.
+ Copyright (C) 1994, 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-#include <string.h>
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
-#if 1
-/* We've now got a nice fast strchr and memcmp use them */
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+/*
+ * My personal strstr() implementation that beats most other algorithms.
+ * Until someone tells me otherwise, I assume that this is the
+ * fastest implementation of strstr() in C.
+ * I deliberately chose not to comment it. You should have at least
+ * as much fun trying to understand it, as I had to write it :-).
+ *
+ * Stephen R. van den Berg, berg@pool.informatik.rwth-aachen.de */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#if defined _LIBC || defined HAVE_STRING_H
+# include <string.h>
+#endif
+
+typedef unsigned chartype;
+
+#undef strstr
char *
-strstr(s1, s2)
-char *s1; char *s2;
+strstr (phaystack, pneedle)
+ const char *phaystack;
+ const char *pneedle;
{
- register int l = strlen(s2);
- register char * p = s1;
-
- if( l==0 ) return p;
-
- while ((p = strchr(p, *s2)))
- {
- if( memcmp(p, s2, l) == 0 )
- return p;
- p++;
- }
- return (char *) 0;
-}
+ register const unsigned char *haystack, *needle;
+ register chartype b, c;
-#else
-/* This is a nice simple self contained strstr,
- now go and work out why the GNU one is faster :-) */
+ haystack = (const unsigned char *) phaystack;
+ needle = (const unsigned char *) pneedle;
-char *strstr(str1, str2)
-char *str1, *str2;
-{
- register char *Sptr, *Tptr;
- int len = strlen(str1) -strlen(str2) + 1;
+ b = *needle;
+ if (b != '\0')
+ {
+ haystack--; /* possible ANSI violation */
+ do
+ {
+ c = *++haystack;
+ if (c == '\0')
+ goto ret0;
+ }
+ while (c != b);
- if (*str2)
- for (; len > 0; len--, str1++){
- if (*str1 != *str2)
- continue;
+ c = *++needle;
+ if (c == '\0')
+ goto foundneedle;
+ ++needle;
+ goto jin;
- for (Sptr = str1, Tptr = str2; *Tptr != '\0'; Sptr++, Tptr++)
- if (*Sptr != *Tptr)
- break;
+ for (;;)
+ {
+ register chartype a;
+ register const unsigned char *rhaystack, *rneedle;
- if (*Tptr == '\0')
- return (char*) str1;
- }
+ do
+ {
+ a = *++haystack;
+ if (a == '\0')
+ goto ret0;
+ if (a == b)
+ break;
+ a = *++haystack;
+ if (a == '\0')
+ goto ret0;
+shloop: }
+ while (a != b);
+
+jin: a = *++haystack;
+ if (a == '\0')
+ goto ret0;
+
+ if (a != c)
+ goto shloop;
- return (char*)0;
+ rhaystack = haystack-- + 1;
+ rneedle = needle;
+ a = *rneedle;
+
+ if (*rhaystack == a)
+ do
+ {
+ if (a == '\0')
+ goto foundneedle;
+ ++rhaystack;
+ a = *++needle;
+ if (*rhaystack != a)
+ break;
+ if (a == '\0')
+ goto foundneedle;
+ ++rhaystack;
+ a = *++needle;
+ }
+ while (*rhaystack == a);
+
+ needle = rneedle; /* took the register-poor approach */
+
+ if (a == '\0')
+ break;
+ }
+ }
+foundneedle:
+ return (char*) haystack;
+ret0:
+ return 0;
}
-#endif
diff --git a/libc/string/strtok.c b/libc/string/strtok.c
index 27d8f25b6..c23c5b85e 100644
--- a/libc/string/strtok.c
+++ b/libc/string/strtok.c
@@ -33,7 +33,7 @@ static char *olds = 0;
char *
strtok(s, delim)
register char *s;
-register char *delim;
+register const char *delim;
{
char *token;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 15:57:24 +0000