Sync i386 up with _all_ the glibc 2.1.3 include/bits headers,

since we will end up needing a few more of them anyways, and
all the other arches have the full set anyways.
 -Erik

1 files changed, 1214 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/i386/bits/string2.h b/libc/sysdeps/linux/i386/bits/string2.h
new file mode 100644
index 000000000..734f5b0e3
--- /dev/null
+++ b/libc/sysdeps/linux/i386/bits/string2.h
@@ -0,0 +1,1214 @@
+/* Machine-independant string function optimizations.
+   Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   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.
+
+   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.  */
+
+#ifndef _STRING_H
+# error "Never use <bits/string2.h> directly; include <string.h> instead."
+#endif
+
+#ifndef __NO_STRING_INLINES
+
+/* Unlike the definitions in the header <bits/string.h> the
+   definitions contained here are not optimized down to assembler
+   level.  Those optimizations are not always a good idea since this
+   means the code size increases a lot.  Instead the definitions here
+   optimize some functions in a way which do not dramatically
+   increase the code size and which do not use assembler.  The main
+   trick is to use GNU CC's `__builtin_constant_p' function.
+
+   Every function XXX which has a defined version in
+   <bits/string.h> must be accompanied by a symbol _HAVE_STRING_ARCH_XXX
+   to make sure we don't get redefinitions.
+
+   We must use here macros instead of inline functions since the
+   trick won't work with the latter.  */
+
+#ifndef __STRING_INLINE
+# ifdef __cplusplus
+#  define __STRING_INLINE inline
+# else
+#  define __STRING_INLINE extern __inline
+# endif
+#endif
+
+#if _STRING_ARCH_unaligned
+/* If we can do unaligned memory accesses we must know the endianess.  */
+# include <endian.h>
+# include <bits/types.h>
+
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+#  define __STRING2_SMALL_GET16(src, idx) \
+     (((__const unsigned char *) (__const char *) (src))[idx + 1] << 8	      \
+      | ((__const unsigned char *) (__const char *) (src))[idx])
+#  define __STRING2_SMALL_GET32(src, idx) \
+     (((((__const unsigned char *) (__const char *) (src))[idx + 3] << 8      \
+	| ((__const unsigned char *) (__const char *) (src))[idx + 2]) << 8   \
+       | ((__const unsigned char *) (__const char *) (src))[idx + 1]) << 8    \
+      | ((__const unsigned char *) (__const char *) (src))[idx])
+# else
+#  define __STRING2_SMALL_GET16(src, idx) \
+     (((__const unsigned char *) (__const char *) (src))[idx] << 8	      \
+      | ((__const unsigned char *) (__const char *) (src))[idx + 1])
+#  define __STRING2_SMALL_GET32(src, idx) \
+     (((((__const unsigned char *) (__const char *) (src))[idx] << 8	      \
+	| ((__const unsigned char *) (__const char *) (src))[idx + 1]) << 8   \
+       | ((__const unsigned char *) (__const char *) (src))[idx + 2]) << 8    \
+      | ((__const unsigned char *) (__const char *) (src))[idx + 3])
+# endif
+#else
+/* These are a few types we need for the optimizations if we cannot
+   use unaligned memory accesses.  */
+# define __STRING2_COPY_TYPE(N) \
+  typedef struct { unsigned char __arr[N]; }				      \
+    __STRING2_COPY_ARR##N __attribute__ ((packed))
+__STRING2_COPY_TYPE (2);
+__STRING2_COPY_TYPE (3);
+__STRING2_COPY_TYPE (4);
+__STRING2_COPY_TYPE (5);
+__STRING2_COPY_TYPE (6);
+__STRING2_COPY_TYPE (7);
+__STRING2_COPY_TYPE (8);
+# undef __STRING2_COPY_TYPE
+#endif
+
+/* Dereferencing a pointer arg to run sizeof on it fails for the void
+   pointer case, so we use this instead.
+   Note that __x is evaluated twice. */
+#define __string2_1bptr_p(__x) \
+  ((size_t)(const void *)((__x) + 1) - (size_t)(const void *)(__x) == 1)
+
+/* Set N bytes of S to C.  */
+#ifndef _HAVE_STRING_ARCH_memset
+# if _STRING_ARCH_unaligned
+#  define memset(s, c, n) \
+  (__extension__ (__builtin_constant_p (n) && (n) <= 16			      \
+		  ? ((n) == 1						      \
+		     ? __memset_1 (s, c)				      \
+		     : __memset_gc (s, c, n))				      \
+		  : (__builtin_constant_p (c) && (c) == '\0'		      \
+		     ? ({ void *__s = (s); __bzero (__s, n); __s; })	      \
+		     : memset (s, c, n))))
+
+#  define __memset_1(s, c) ({ void *__s = (s);				      \
+			    *((__uint8_t *) __s) = (__uint8_t) c; __s; })
+
+#  define __memset_gc(s, c, n) \
+  ({ void *__s = (s);							      \
+     union {								      \
+       unsigned int __ui;						      \
+       unsigned short int __usi;					      \
+       unsigned char __uc;						      \
+     } *__u = __s;							      \
+     __uint8_t __c = (__uint8_t) (c);					      \
+									      \
+     /* This `switch' statement will be removed at compile-time.  */	      \
+     switch ((unsigned int) (n))					      \
+       {								      \
+       case 15:								      \
+	 __u->__ui = __c * 0x01010101;					      \
+	 __u = __extension__ (void *)((char *) __u + 4);		      \
+       case 11:								      \
+	 __u->__ui = __c * 0x01010101;					      \
+	 __u = __extension__ (void *)((char *) __u + 4);		      \
+       case 7:								      \
+	 __u->__ui = __c * 0x01010101;					      \
+	 __u = __extension__ (void *)((char *) __u + 4);		      \
+       case 3:								      \
+	 __u->__usi = (unsigned short int) __c * 0x0101;		      \
+	 __u = __extension__ (void *)((char *) __u + 2);		      \
+	 __u->__uc = (unsigned char) __c;				      \
+	 break;								      \
+									      \
+       case 14:								      \
+	 __u->__ui = __c * 0x01010101;					      \
+	 __u = __extension__ (void *)((char *) __u + 4);		      \
+       case 10:								      \
+	 __u->__ui = __c * 0x01010101;					      \
+	 __u = __extension__ (void *)((char *) __u + 4);		      \
+       case 6:								      \
+	 __u->__ui = __c * 0x01010101;					      \
+	 __u = __extension__ (void *)((char *) __u + 4);		      \
+       case 2:								      \
+	 __u->__usi = (unsigned short int) __c * 0x0101;		      \
+	 break;								      \
+									      \
+       case 13:								      \
+	 __u->__ui = __c * 0x01010101;					      \
+	 __u = __extension__ (void *)((char *) __u + 4);		      \
+       case 9:								      \
+	 __u->__ui = __c * 0x01010101;					      \
+	 __u = __extension__ (void *)((char *) __u + 4);		      \
+       case 5:								      \
+	 __u->__ui = __c * 0x01010101;					      \
+	 __u = __extension__ (void *)((char *) __u + 4);		      \
+       case 1:								      \
+	 __u->__uc = (unsigned char) __c;				      \
+	 break;								      \
+									      \
+       case 16:								      \
+	 __u->__ui = __c * 0x01010101;					      \
+	 __u = __extension__ (void *)((char *) __u + 4);		      \
+       case 12:								      \
+	 __u->__ui = __c * 0x01010101;					      \
+	 __u = __extension__ (void *)((char *) __u + 4);		      \
+       case 8:								      \
+	 __u->__ui = __c * 0x01010101;					      \
+	 __u = __extension__ (void *)((char *) __u + 4);		      \
+       case 4:								      \
+	 __u->__ui = __c * 0x01010101;					      \
+       case 0:								      \
+	 break;								      \
+       }								      \
+									      \
+     __s; })
+# else
+#  define memset(s, c, n) \
+  (__extension__ (__builtin_constant_p (c) && (c) == '\0'		      \
+		  ? ({ void *__s = (s); __bzero (__s, n); __s; })	      \
+		  : memset (s, c, n)))
+# endif
+
+/* GCC optimizes memset(s, 0, n) but not bzero(s, n).
+   The optimization is broken before EGCS 1.1.  */
+# if defined __GNUC__ \
+     && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 90))
+#  define __bzero(s, n) __builtin_memset (s, '\0', n)
+# endif
+
+#endif
+
+
+/* Copy N bytes from SRC to DEST, returning pointer to byte following the
+   last copied.  */
+#ifdef __USE_GNU
+# ifndef _HAVE_STRING_ARCH_mempcpy
+#  define __mempcpy(dest, src, n) \
+  (__extension__ (__builtin_constant_p (src) && __builtin_constant_p (n)      \
+		  && __string2_1bptr_p (src) && n <= 8			      \
+		  ? __mempcpy_small (dest, __mempcpy_args (src), n)	      \
+		  : __mempcpy (dest, src, n)))
+/* In glibc we use this function frequently but for namespace reasons
+   we have to use the name `__mempcpy'.  */
+#  define mempcpy(dest, src, n) __mempcpy (dest, src, n)
+
+#  if _STRING_ARCH_unaligned
+#   define __mempcpy_args(src) \
+     ((char *) (src))[0], ((char *) (src))[2], ((char *) (src))[4],	      \
+     ((char *) (src))[6],						      \
+     __extension__ __STRING2_SMALL_GET16 (src, 0),			      \
+     __extension__ __STRING2_SMALL_GET16 (src, 4),			      \
+     __extension__ __STRING2_SMALL_GET32 (src, 0),			      \
+     __extension__ __STRING2_SMALL_GET32 (src, 4)
+__STRING_INLINE void *__mempcpy_small (void *, char, char, char, char,
+				       __uint16_t, __uint16_t, __uint32_t,
+				       __uint32_t, size_t);
+__STRING_INLINE void *
+__mempcpy_small (void *__dest1,
+		 char __src0_1, char __src2_1, char __src4_1, char __src6_1,
+		 __uint16_t __src0_2, __uint16_t __src4_2,
+		 __uint32_t __src0_4, __uint32_t __src4_4,
+		 size_t __srclen)
+{
+  union {
+    __uint32_t __ui;
+    __uint16_t __usi;
+    unsigned char __uc;
+    unsigned char __c;
+  } *__u = __dest1;
+  switch ((unsigned int) __srclen)
+    {
+    case 1:
+      __u->__c = __src0_1;
+      __u = __extension__ (void *)((char *) __u + 1);
+      break;
+    case 2:
+      __u->__usi = __src0_2;
+      __u = __extension__ (void *)((char *) __u + 2);
+      break;
+    case 3:
+      __u->__usi = __src0_2;
+      __u = __extension__ (void *)((char *) __u + 2);
+      __u->__c = __src2_1;
+      __u = __extension__ (void *)((char *) __u + 1);
+      break;
+    case 4:
+      __u->__ui = __src0_4;
+      __u = __extension__ (void *)((char *) __u + 4);
+      break;
+    case 5:
+      __u->__ui = __src0_4;
+      __u = __extension__ (void *)((char *) __u + 4);
+      __u->__c = __src4_1;
+      __u = __extension__ (void *)((char *) __u + 1);
+      break;
+    case 6:
+      __u->__ui = __src0_4;
+      __u = __extension__ (void *)((char *) __u + 4);
+      __u->__usi = __src4_2;
+      __u = __extension__ (void *)((char *) __u + 2);
+      break;
+    case 7:
+      __u->__ui = __src0_4;
+      __u = __extension__ (void *)((char *) __u + 4);
+      __u->__usi = __src4_2;
+      __u = __extension__ (void *)((char *) __u + 2);
+      __u->__c = __src6_1;
+      __u = __extension__ (void *)((char *) __u + 1);
+      break;
+    case 8:
+      __u->__ui = __src0_4;
+      __u = __extension__ (void *)((char *) __u + 4);
+      __u->__ui = __src4_4;
+      __u = __extension__ (void *)((char *) __u + 4);
+      break;
+    }
+  return (void *) __u;
+}
+#  else
+#   define __mempcpy_args(src) \
+     ((__const char *) (src))[0],					      \
+     __extension__ ((__STRING2_COPY_ARR2)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1] } }),      \
+     __extension__ ((__STRING2_COPY_ARR3)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  ((__const char *) (src))[2] } }),				      \
+     __extension__ ((__STRING2_COPY_ARR4)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  ((__const char *) (src))[2], ((__const char *) (src))[3] } }),      \
+     __extension__ ((__STRING2_COPY_ARR5)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  ((__const char *) (src))[2], ((__const char *) (src))[3],	      \
+	  ((__const char *) (src))[4] } }),				      \
+     __extension__ ((__STRING2_COPY_ARR6)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  ((__const char *) (src))[2], ((__const char *) (src))[3],	      \
+	  ((__const char *) (src))[4], ((__const char *) (src))[5] } }),      \
+     __extension__ ((__STRING2_COPY_ARR7)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  ((__const char *) (src))[2], ((__const char *) (src))[3],	      \
+	  ((__const char *) (src))[4], ((__const char *) (src))[5],	      \
+	  ((__const char *) (src))[6] } }),				      \
+     __extension__ ((__STRING2_COPY_ARR8)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  ((__const char *) (src))[2], ((__const char *) (src))[3],	      \
+	  ((__const char *) (src))[4], ((__const char *) (src))[5],	      \
+	  ((__const char *) (src))[6], ((__const char *) (src))[7] } })
+__STRING_INLINE void *__mempcpy_small (void *, char, __STRING2_COPY_ARR2,
+				       __STRING2_COPY_ARR3,
+				       __STRING2_COPY_ARR4,
+				       __STRING2_COPY_ARR5,
+				       __STRING2_COPY_ARR6,
+				       __STRING2_COPY_ARR7,
+				       __STRING2_COPY_ARR8, size_t);
+__STRING_INLINE void *
+__mempcpy_small (void *__dest, char __src1,
+		 __STRING2_COPY_ARR2 __src2, __STRING2_COPY_ARR3 __src3,
+		 __STRING2_COPY_ARR4 __src4, __STRING2_COPY_ARR5 __src5,
+		 __STRING2_COPY_ARR6 __src6, __STRING2_COPY_ARR7 __src7,
+		 __STRING2_COPY_ARR8 __src8, size_t __srclen)
+{
+  union {
+    char __c;
+    __STRING2_COPY_ARR2 __sca2;
+    __STRING2_COPY_ARR3 __sca3;
+    __STRING2_COPY_ARR4 __sca4;
+    __STRING2_COPY_ARR5 __sca5;
+    __STRING2_COPY_ARR6 __sca6;
+    __STRING2_COPY_ARR7 __sca7;
+    __STRING2_COPY_ARR8 __sca8;
+  } *__u = __dest;
+  switch ((unsigned int) __srclen)
+    {
+    case 1:
+      __u->__c = __src1;
+      break;
+    case 2:
+      __extension__ __u->__sca2 = __src2;
+      break;
+    case 3:
+      __extension__ __u->__sca3 = __src3;
+      break;
+    case 4:
+      __extension__ __u->__sca4 = __src4;
+      break;
+    case 5:
+      __extension__ __u->__sca5 = __src5;
+      break;
+    case 6:
+      __extension__ __u->__sca6 = __src6;
+      break;
+    case 7:
+      __extension__ __u->__sca7 = __src7;
+      break;
+    case 8:
+      __extension__ __u->__sca8 = __src8;
+      break;
+    }
+  return __extension__ (void *)((char *) __u + __srclen);
+}
+#  endif
+# endif
+#endif
+
+
+/* Return pointer to C in S.  */
+#ifndef _HAVE_STRING_ARCH_strchr
+extern __ptr_t __rawmemchr (const __ptr_t __s, int __c);
+# define strchr(s, c) \
+  (__extension__ (__builtin_constant_p (c) && (c) == '\0'		      \
+		  ? (char *) __rawmemchr (s, c)				      \
+		  : strchr (s, c)))
+#endif
+
+
+/* Copy SRC to DEST.  */
+#ifndef _HAVE_STRING_ARCH_strcpy
+# define strcpy(dest, src) \
+  (__extension__ (__builtin_constant_p (src)				      \
+		  ? (__string2_1bptr_p (src) && strlen (src) + 1 <= 8	      \
+		     ? __strcpy_small (dest, __strcpy_args (src),	      \
+				       strlen (src) + 1)		      \
+		     : (char *) memcpy (dest, src, strlen (src) + 1))	      \
+		  : strcpy (dest, src)))
+
+# if _STRING_ARCH_unaligned
+#  define __strcpy_args(src) \
+     __extension__ __STRING2_SMALL_GET16 (src, 0),			      \
+     __extension__ __STRING2_SMALL_GET16 (src, 4),			      \
+     __extension__ __STRING2_SMALL_GET32 (src, 0),			      \
+     __extension__ __STRING2_SMALL_GET32 (src, 4)
+__STRING_INLINE char *__strcpy_small (char *, __uint16_t, __uint16_t,
+				      __uint32_t, __uint32_t, size_t);
+__STRING_INLINE char *
+__strcpy_small (char *__dest,
+		__uint16_t __src0_2, __uint16_t __src4_2,
+		__uint32_t __src0_4, __uint32_t __src4_4,
+		size_t __srclen)
+{
+  union {
+    __uint32_t __ui;
+    __uint16_t __usi;
+    unsigned char __uc;
+  } *__u = (void *) __dest;
+  switch ((unsigned int) __srclen)
+    {
+    case 1:
+      __u->__uc = '\0';
+      break;
+    case 2:
+      __u->__usi = __src0_2;
+      break;
+    case 3:
+      __u->__usi = __src0_2;
+      __u = __extension__ (void *)((char *) __u + 2);
+      __u->__uc = '\0';
+      break;
+    case 4:
+      __u->__ui = __src0_4;
+      break;
+    case 5:
+      __u->__ui = __src0_4;
+      __u = __extension__ (void *)((char *) __u + 4);
+      __u->__uc = '\0';
+      break;
+    case 6:
+      __u->__ui = __src0_4;
+      __u = __extension__ (void *)((char *) __u + 4);
+      __u->__usi = __src4_2;
+      break;
+    case 7:
+      __u->__ui = __src0_4;
+      __u = __extension__ (void *)((char *) __u + 4);
+      __u->__usi = __src4_2;
+      __u = __extension__ (void *)((char *) __u + 2);
+      __u->__uc = '\0';
+      break;
+    case 8:
+      __u->__ui = __src0_4;
+      __u = __extension__ (void *)((char *) __u + 4);
+      __u->__ui = __src4_4;
+      break;
+    }
+  return __dest;
+}
+# else
+#  define __strcpy_args(src) \
+     __extension__ ((__STRING2_COPY_ARR2)				      \
+      { { ((__const char *) (src))[0], '\0' } }),			      \
+     __extension__ ((__STRING2_COPY_ARR3)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  '\0' } }),							      \
+     __extension__ ((__STRING2_COPY_ARR4)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  ((__const char *) (src))[2], '\0' } }),			      \
+     __extension__ ((__STRING2_COPY_ARR5)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  ((__const char *) (src))[2], ((__const char *) (src))[3],	      \
+	  '\0' } }),							      \
+     __extension__ ((__STRING2_COPY_ARR6)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  ((__const char *) (src))[2], ((__const char *) (src))[3],	      \
+	  ((__const char *) (src))[4], '\0' } }),			      \
+     __extension__ ((__STRING2_COPY_ARR7)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  ((__const char *) (src))[2], ((__const char *) (src))[3],	      \
+	  ((__const char *) (src))[4], ((__const char *) (src))[5],	      \
+	  '\0' } }),							      \
+     __extension__ ((__STRING2_COPY_ARR8)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  ((__const char *) (src))[2], ((__const char *) (src))[3],	      \
+	  ((__const char *) (src))[4], ((__const char *) (src))[5],	      \
+	  ((__const char *) (src))[6], '\0' } })
+__STRING_INLINE char *__strcpy_small (char *, __STRING2_COPY_ARR2,
+				      __STRING2_COPY_ARR3,
+				      __STRING2_COPY_ARR4,
+				      __STRING2_COPY_ARR5,
+				      __STRING2_COPY_ARR6,
+				      __STRING2_COPY_ARR7,
+				      __STRING2_COPY_ARR8, size_t);
+__STRING_INLINE char *
+__strcpy_small (char *__dest,
+		__STRING2_COPY_ARR2 __src2, __STRING2_COPY_ARR3 __src3,
+		__STRING2_COPY_ARR4 __src4, __STRING2_COPY_ARR5 __src5,
+		__STRING2_COPY_ARR6 __src6, __STRING2_COPY_ARR7 __src7,
+		__STRING2_COPY_ARR8 __src8, size_t __srclen)
+{
+  union {
+    char __c;
+    __STRING2_COPY_ARR2 __sca2;
+    __STRING2_COPY_ARR3 __sca3;
+    __STRING2_COPY_ARR4 __sca4;
+    __STRING2_COPY_ARR5 __sca5;
+    __STRING2_COPY_ARR6 __sca6;
+    __STRING2_COPY_ARR7 __sca7;
+    __STRING2_COPY_ARR8 __sca8;
+  } *__u = (void *) __dest;
+  switch ((unsigned int) __srclen)
+    {
+    case 1:
+      __u->__c = '\0';
+      break;
+    case 2:
+      __extension__ __u->__sca2 = __src2;
+      break;
+    case 3:
+      __extension__ __u->__sca3 = __src3;
+      break;
+    case 4:
+      __extension__ __u->__sca4 = __src4;
+      break;
+    case 5:
+      __extension__ __u->__sca5 = __src5;
+      break;
+    case 6:
+      __extension__ __u->__sca6 = __src6;
+      break;
+    case 7:
+      __extension__ __u->__sca7 = __src7;
+      break;
+    case 8:
+      __extension__ __u->__sca8 = __src8;
+      break;
+  }
+  return __dest;
+}
+# endif
+#endif
+
+
+/* Copy SRC to DEST, returning pointer to final NUL byte.  */
+#ifdef __USE_GNU
+# ifndef _HAVE_STRING_ARCH_stpcpy
+#  define __stpcpy(dest, src) \
+  (__extension__ (__builtin_constant_p (src)				      \
+		  ? (__string2_1bptr_p (src) && strlen (src) + 1 <= 8	      \
+		     ? __stpcpy_small (dest, __stpcpy_args (src),	      \
+				       strlen (src) + 1)		      \
+		     : ((char *) __mempcpy (dest, src, strlen (src) + 1) - 1))\
+		  : __stpcpy (dest, src)))
+/* In glibc we use this function frequently but for namespace reasons
+   we have to use the name `__stpcpy'.  */
+#  define stpcpy(dest, src) __stpcpy (dest, src)
+
+#  if _STRING_ARCH_unaligned
+#   define __stpcpy_args(src) \
+     __extension__ __STRING2_SMALL_GET16 (src, 0),			      \
+     __extension__ __STRING2_SMALL_GET16 (src, 4),			      \
+     __extension__ __STRING2_SMALL_GET32 (src, 0),			      \
+     __extension__ __STRING2_SMALL_GET32 (src, 4)
+__STRING_INLINE char *__stpcpy_small (char *, __uint16_t, __uint16_t,
+				      __uint32_t, __uint32_t, size_t);
+__STRING_INLINE char *
+__stpcpy_small (char *__dest,
+		__uint16_t __src0_2, __uint16_t __src4_2,
+		__uint32_t __src0_4, __uint32_t __src4_4,
+		size_t __srclen)
+{
+  union {
+    unsigned int __ui;
+    unsigned short int __usi;
+    unsigned char __uc;
+    char __c;
+  } *__u = (void *) __dest;
+  switch ((unsigned int) __srclen)
+    {
+    case 1:
+      __u->__uc = '\0';
+      break;
+    case 2:
+      __u->__usi = __src0_2;
+      __u = __extension__ (void *)((char *) __u + 1);
+      break;
+    case 3:
+      __u->__usi = __src0_2;
+      __u = __extension__ (void *)((char *) __u + 2);
+      __u->__uc = '\0';
+      break;
+    case 4:
+      __u->__ui = __src0_4;
+      __u = __extension__ (void *)((char *) __u + 3);
+      break;
+    case 5:
+      __u->__ui = __src0_4;
+      __u = __extension__ (void *)((char *) __u + 4);
+      __u->__uc = '\0';
+      break;
+    case 6:
+      __u->__ui = __src0_4;
+      __u = __extension__ (void *)((char *) __u + 4);
+      __u->__usi = __src4_2;
+      __u = __extension__ (void *)((char *) __u + 1);
+      break;
+    case 7:
+      __u->__ui = __src0_4;
+      __u = __extension__ (void *)((char *) __u + 4);
+      __u->__usi = __src4_2;
+      __u = __extension__ (void *)((char *) __u + 2);
+      __u->__uc = '\0';
+      break;
+    case 8:
+      __u->__ui = __src0_4;
+      __u = __extension__ (void *)((char *) __u + 4);
+      __u->__ui = __src4_4;
+      __u = __extension__ (void *)((char *) __u + 3);
+      break;
+    }
+  return &__u->__c;
+}
+#  else
+#  define __stpcpy_args(src) \
+     __extension__ ((__STRING2_COPY_ARR2)				      \
+      { { ((__const char *) (src))[0], '\0' } }),			      \
+     __extension__ ((__STRING2_COPY_ARR3)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  '\0' } }),							      \
+     __extension__ ((__STRING2_COPY_ARR4)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  ((__const char *) (src))[2], '\0' } }),			      \
+     __extension__ ((__STRING2_COPY_ARR5)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  ((__const char *) (src))[2], ((__const char *) (src))[3],	      \
+	  '\0' } }),							      \
+     __extension__ ((__STRING2_COPY_ARR6)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  ((__const char *) (src))[2], ((__const char *) (src))[3],	      \
+	  ((__const char *) (src))[4], '\0' } }),			      \
+     __extension__ ((__STRING2_COPY_ARR7)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  ((__const char *) (src))[2], ((__const char *) (src))[3],	      \
+	  ((__const char *) (src))[4], ((__const char *) (src))[5],	      \
+	  '\0' } }),							      \
+     __extension__ ((__STRING2_COPY_ARR8)				      \
+      { { ((__const char *) (src))[0], ((__const char *) (src))[1],	      \
+	  ((__const char *) (src))[2], ((__const char *) (src))[3],	      \
+	  ((__const char *) (src))[4], ((__const char *) (src))[5],	      \
+	  ((__const char *) (src))[6], '\0' } })
+__STRING_INLINE char *__stpcpy_small (char *, __STRING2_COPY_ARR2,
+				      __STRING2_COPY_ARR3,
+				      __STRING2_COPY_ARR4,
+				      __STRING2_COPY_ARR5,
+				      __STRING2_COPY_ARR6,
+				      __STRING2_COPY_ARR7,
+				      __STRING2_COPY_ARR8, size_t);
+__STRING_INLINE char *
+__stpcpy_small (char *__dest,
+		__STRING2_COPY_ARR2 __src2, __STRING2_COPY_ARR3 __src3,
+		__STRING2_COPY_ARR4 __src4, __STRING2_COPY_ARR5 __src5,
+		__STRING2_COPY_ARR6 __src6, __STRING2_COPY_ARR7 __src7,
+		__STRING2_COPY_ARR8 __src8, size_t __srclen)
+{
+  union {
+    char __c;
+    __STRING2_COPY_ARR2 __sca2;
+    __STRING2_COPY_ARR3 __sca3;
+    __STRING2_COPY_ARR4 __sca4;
+    __STRING2_COPY_ARR5 __sca5;
+    __STRING2_COPY_ARR6 __sca6;
+    __STRING2_COPY_ARR7 __sca7;
+    __STRING2_COPY_ARR8 __sca8;
+  } *__u = (void *) __dest;
+  switch ((unsigned int) __srclen)
+    {
+    case 1:
+      __u->__c = '\0';
+      break;
+    case 2:
+      __extension__ __u->__sca2 = __src2;
+      break;
+    case 3:
+      __extension__ __u->__sca3 = __src3;
+      break;
+    case 4:
+      __extension__ __u->__sca4 = __src4;
+      break;
+    case 5:
+      __extension__ __u->__sca5 = __src5;
+      break;
+    case 6:
+      __extension__ __u->__sca6 = __src6;
+      break;
+    case 7:
+      __extension__ __u->__sca7 = __src7;
+      break;
+    case 8:
+      __extension__ __u->__sca8 = __src8;
+      break;
+  }
+  return __dest + __srclen - 1;
+}
+#  endif
+# endif
+#endif
+
+
+/* Copy no more than N characters of SRC to DEST.  */
+#ifndef _HAVE_STRING_ARCH_strncpy
+# if defined _HAVE_STRING_ARCH_memset && defined _HAVE_STRING_ARCH_mempcpy
+#  define strncpy(dest, src, n) \
+  (__extension__ ({ char *__dest = (dest);				      \
+		    __builtin_constant_p (src) && __builtin_constant_p (n)    \
+		    ? (strlen (src) + 1 >= ((size_t) (n))		      \
+		       ? (char *) memcpy (__dest, src, n)		      \
+		       : (memset (__mempcpy (__dest, src, strlen (src)),      \
+				  '\0', n - strlen (src)),		      \
+			  __dest))					      \
+		    : strncpy (__dest, src, n); }))
+# else
+#  define strncpy(dest, src, n) \
+  (__extension__ (__builtin_constant_p (src) && __builtin_constant_p (n)      \
+		  ? (strlen (src) + 1 >= ((size_t) (n))			      \
+		     ? (char *) memcpy (dest, src, n)			      \
+		     : strncpy (dest, src, n))				      \
+		  : strncpy (dest, src, n)))
+# endif
+#endif
+
+
+/* Append no more than N characters from SRC onto DEST.  */
+#ifndef _HAVE_STRING_ARCH_strncat
+# ifdef _HAVE_STRING_ARCH_strchr
+#  define strncat(dest, src, n) \
+  (__extension__ ({ char *__dest = (dest);				      \
+		    __builtin_constant_p (src) && __builtin_constant_p (n)    \
+		    ? (strlen (src) < ((size_t) (n))			      \
+		       ? strcat (__dest, src)				      \
+		       : (memcpy (strchr (__dest, '\0'), src, n), __dest))    \
+		    : strncat (dest, src, n); }))
+# else
+#  define strncat(dest, src, n) \
+  (__extension__ (__builtin_constant_p (src) && __builtin_constant_p (n)      \
+		  ? (strlen (src) < ((size_t) (n))			      \
+		     ? strcat (dest, src)				      \
+		     : strncat (dest, src, n))				      \
+		  : strncat (dest, src, n)))
+# endif
+#endif
+
+
+/* Compare characters of S1 and S2.  */
+#ifndef _HAVE_STRING_ARCH_strcmp
+# define strcmp(s1, s2) \
+  __extension__								      \
+  ({ size_t __s1_len, __s2_len;						      \
+     (__builtin_constant_p (s1) && __builtin_constant_p (s2)		      \
+      && (__s1_len = strlen (s1), __s2_len = strlen (s2),		      \
+	  (!__string2_1bptr_p (s1) || __s1_len >= 4)			      \
+	  && (!__string2_1bptr_p (s2) || __s2_len >= 4))		      \
+      ? memcmp ((__const char *) (s1), (__const char *) (s2),		      \
+		(__s1_len < __s2_len ? __s1_len : __s2_len) + 1)	      \
+      : (__builtin_constant_p (s1) && __string2_1bptr_p (s1)		      \
+	 && (__s1_len = strlen (s1), __s1_len < 4)			      \
+	 ? (__builtin_constant_p (s2) && __string2_1bptr_p (s2)		      \
+	    ? __strcmp_cc (s1, s2, __s1_len)				      \
+	    : __strcmp_cg (s1, s2, __s1_len))				      \
+	 : (__builtin_constant_p (s2) && __string2_1bptr_p (s2)		      \
+	    && (__s2_len = strlen (s2), __s2_len < 4)			      \
+	    ? (__builtin_constant_p (s1) && __string2_1bptr_p (s1)	      \
+	       ? __strcmp_cc (s1, s2, __s2_len)				      \
+	       : __strcmp_gc (s1, s2, __s2_len))			      \
+	    : strcmp (s1, s2)))); })
+
+# define __strcmp_cc(s1, s2, l) \
+  (__extension__ ({ register int __result =				      \
+		      (((__const unsigned char *) (__const char *) (s1))[0]   \
+		       - ((__const unsigned char *) (__const char *)(s2))[0]);\
+		    if (l > 0 && __result == 0)				      \
+		      {							      \
+			__result = (((__const unsigned char *)		      \
+				     (__const char *) (s1))[1]		      \
+				    - ((__const unsigned char *)	      \
+				       (__const char *) (s2))[1]);	      \
+			if (l > 1 && __result == 0)			      \
+			  {						      \
+			    __result =					      \
+			      (((__const unsigned char *)		      \
+				(__const char *) (s1))[2]		      \
+			       - ((__const unsigned char *)		      \
+				  (__const char *) (s2))[2]);		      \
+			    if (l > 2 && __result == 0)			      \
+			      __result =				      \
+				(((__const unsigned char *)		      \
+				  (__const char *) (s1))[3]		      \
+				 - ((__const unsigned char *)		      \
+				    (__const char *) (s2))[3]);		      \
+			  }						      \
+		      }							      \
+		    __result; }))
+
+# define __strcmp_cg(s1, s2, l1) \
+  (__extension__ ({ __const unsigned char *__s2 =			      \
+		      (__const unsigned char *) (__const char *) (s2);	      \
+		    register int __result =				      \
+		      (((__const unsigned char *) (__const char *) (s1))[0]   \
+		       - __s2[0]);					      \
+		    if (l1 > 0 && __result == 0)			      \
+		      {							      \
+			__result = (((__const unsigned char *)		      \
+				     (__const char *) (s1))[1] - __s2[1]);    \
+			if (l1 > 1 && __result == 0)			      \
+			  {						      \
+			    __result = (((__const unsigned char *)	      \
+					 (__const char *) (s1))[2] - __s2[2]);\
+			    if (l1 > 2 && __result == 0)		      \
+			      __result = (((__const unsigned char *)	      \
+					  (__const char *)  (s1))[3]	      \
+					  - __s2[3]);			      \
+			  }						      \
+		      }							      \
+		    __result; }))
+
+# define __strcmp_gc(s1, s2, l2) \
+  (__extension__ ({ __const unsigned char *__s1 =			      \
+		      (__const unsigned char *) (__const char *) (s1);	      \
+		    register int __result =				      \
+		      __s1[0] - ((__const unsigned char *)		      \
+				 (__const char *) (s2))[0];		      \
+		    if (l2 > 0 && __result == 0)			      \
+		      {							      \
+			__result = (__s1[1]				      \
+				    - ((__const unsigned char *)	      \
+				       (__const char *) (s2))[1]);	      \
+			if (l2 > 1 && __result == 0)			      \
+			  {						      \
+			    __result =					      \
+			      (__s1[2] - ((__const unsigned char *)	      \
+					  (__const char *) (s2))[2]);	      \
+			    if (l2 > 2 && __result == 0)		      \
+			      __result =				      \
+				(__s1[3]				      \
+				 - ((__const unsigned char *)		      \
+				    (__const char *) (s2))[3]);		      \
+			  }						      \
+		      }							      \
+		    __result; }))
+#endif
+
+
+/* Compare N characters of S1 and S2.  */
+#ifndef _HAVE_STRING_ARCH_strncmp
+# define strncmp(s1, s2, n)						      \
+  (__extension__ (__builtin_constant_p (n)				      \
+		  && ((__builtin_constant_p (s1)			      \
+		       && strlen (s1) < ((size_t) (n)))			      \
+		      || (__builtin_constant_p (s2)			      \
+			  && strlen (s2) < ((size_t) (n))))		      \
+		  ? strcmp (s1, s2) : strncmp (s1, s2, n)))
+#endif
+
+
+/* Return the length of the initial segment of S which
+   consists entirely of characters not in REJECT.  */
+#ifndef _HAVE_STRING_ARCH_strcspn
+# define strcspn(s, reject) \
+  __extension__								      \
+  ({ char __r0, __r1, __r2;						      \
+     (__builtin_constant_p (reject) && __string2_1bptr_p (reject)	      \
+      ? ((__r0 = ((__const char *) (reject))[0], __r0 == '\0')		      \
+	 ? strlen (s)							      \
+	 : ((__r1 = ((__const char *) (reject))[1], __r1 == '\0')	      \
+	    ? __strcspn_c1 (s, __r0)					      \
+	    : ((__r2 = ((__const char *) (reject))[2], __r2 == '\0')	      \
+	       ? __strcspn_c2 (s, __r0, __r1)				      \
+	       : (((__const char *) (reject))[3] == '\0'		      \
+		  ? __strcspn_c3 (s, __r0, __r1, __r2)			      \
+		  : strcspn (s, reject)))))				      \
+		  : strcspn (s, reject)); })
+
+__STRING_INLINE size_t __strcspn_c1 (__const char *__s, char __reject);
+__STRING_INLINE size_t
+__strcspn_c1 (__const char *__s, char __reject)
+{
+  register size_t __result = 0;
+  while (__s[__result] != '\0' && __s[__result] != __reject)
+    ++__result;
+  return __result;
+}
+
+__STRING_INLINE size_t __strcspn_c2 (__const char *__s, char __reject1,
+				     char __reject2);
+__STRING_INLINE size_t
+__strcspn_c2 (__const char *__s, char __reject1, char __reject2)
+{
+  register size_t __result = 0;
+  while (__s[__result] != '\0' && __s[__result] != __reject1
+	 && __s[__result] != __reject2)
+    ++__result;
+  return __result;
+}
+
+__STRING_INLINE size_t __strcspn_c3 (__const char *__s, char __reject1,
+				     char __reject2, char __reject3);
+__STRING_INLINE size_t
+__strcspn_c3 (__const char *__s, char __reject1, char __reject2,
+	      char __reject3)
+{
+  register size_t __result = 0;
+  while (__s[__result] != '\0' && __s[__result] != __reject1
+	 && __s[__result] != __reject2 && __s[__result] != __reject3)
+    ++__result;
+  return __result;
+}
+#endif
+
+
+/* Return the length of the initial segment of S which
+   consists entirely of characters in ACCEPT.  */
+#ifndef _HAVE_STRING_ARCH_strspn
+# define strspn(s, accept) \
+  __extension__								      \
+  ({ char __a0, __a1, __a2;						      \
+     (__builtin_constant_p (accept) && __string2_1bptr_p (accept)	      \
+      ? ((__a0 = ((__const char *) (accept))[0], __a0 == '\0')		      \
+	 ? 0								      \
+	 : ((__a1 = ((__const char *) (accept))[1], __a1 == '\0')	      \
+	    ? __strspn_c1 (s, __a0)					      \
+	    : ((__a2 = ((__const char *) (accept))[2], __a2 == '\0')	      \
+	       ? __strspn_c2 (s, __a0, __a1)				      \
+	       : (((__const char *) (accept))[3] == '\0'		      \
+		  ? __strspn_c3 (s, __a0, __a1, __a2)			      \
+		  : strspn (s, accept)))))				      \
+      : strspn (s, accept)); })
+
+__STRING_INLINE size_t __strspn_c1 (__const char *__s, char __accept);
+__STRING_INLINE size_t
+__strspn_c1 (__const char *__s, char __accept)
+{
+  register size_t __result = 0;
+  /* Please note that __accept never can be '\0'.  */
+  while (__s[__result] == __accept)
+    ++__result;
+  return __result;
+}
+
+__STRING_INLINE size_t __strspn_c2 (__const char *__s, char __accept1,
+				    char __accept2);
+__STRING_INLINE size_t
+__strspn_c2 (__const char *__s, char __accept1, char __accept2)
+{
+  register size_t __result = 0;
+  /* Please note that __accept1 and __accept2 never can be '\0'.  */
+  while (__s[__result] == __accept1 || __s[__result] == __accept2)
+    ++__result;
+  return __result;
+}
+
+__STRING_INLINE size_t __strspn_c3 (__const char *__s, char __accept1,
+				    char __accept2, char __accept3);
+__STRING_INLINE size_t
+__strspn_c3 (__const char *__s, char __accept1, char __accept2, char __accept3)
+{
+  register size_t __result = 0;
+  /* Please note that __accept1 to __accept3 never can be '\0'.  */
+  while (__s[__result] == __accept1 || __s[__result] == __accept2
+	 || __s[__result] == __accept3)
+    ++__result;
+  return __result;
+}
+#endif
+
+
+/* Find the first occurrence in S of any character in ACCEPT.  */
+#ifndef _HAVE_STRING_ARCH_strpbrk
+# define strpbrk(s, accept) \
+  __extension__								      \
+  ({ char __a0, __a1, __a2;						      \
+     (__builtin_constant_p (accept) && __string2_1bptr_p (accept)	      \
+      ? ((__a0 = ((__const char  *) (accept))[0], __a0 == '\0')		      \
+	 ? NULL								      \
+	 : ((__a1 = ((__const char *) (accept))[1], __a1 == '\0')	      \
+	    ? strchr (s, __a0)						      \
+	    : ((__a2 = ((__const char *) (accept))[2], __a2 == '\0')	      \
+	       ? __strpbrk_c2 (s, __a0, __a1)				      \
+	       : (((__const char *) (accept))[3] == '\0'		      \
+		  ? __strpbrk_c3 (s, __a0, __a1, __a2)			      \
+		  : strpbrk (s, accept)))))				      \
+      : strpbrk (s, accept)); })
+
+__STRING_INLINE char *__strpbrk_c2 (__const char *__s, char __accept1,
+				     char __accept2);
+__STRING_INLINE char *
+__strpbrk_c2 (__const char *__s, char __accept1, char __accept2)
+{
+  /* Please note that __accept1 and __accept2 never can be '\0'.  */
+  while (*__s != '\0' && *__s != __accept1 && *__s != __accept2)
+    ++__s;
+  return *__s == '\0' ? NULL : (char *) (size_t) __s;
+}
+
+__STRING_INLINE char *__strpbrk_c3 (__const char *__s, char __accept1,
+				     char __accept2, char __accept3);
+__STRING_INLINE char *
+__strpbrk_c3 (__const char *__s, char __accept1, char __accept2,
+	      char __accept3)
+{
+  /* Please note that __accept1 to __accept3 never can be '\0'.  */
+  while (*__s != '\0' && *__s != __accept1 && *__s != __accept2
+	 && *__s != __accept3)
+    ++__s;
+  return *__s == '\0' ? NULL : (char *) (size_t) __s;
+}
+#endif
+
+
+/* Find the first occurrence of NEEDLE in HAYSTACK.  */
+#ifndef _HAVE_STRING_ARCH_strstr
+# define strstr(haystack, needle) \
+  (__extension__ (__builtin_constant_p (needle) && __string2_1bptr_p (needle) \
+		  ? (((__const char *) (needle))[0] == '\0'		      \
+		     ? (char *) (size_t) (haystack)			      \
+		     : (((__const char *) (needle))[1] == '\0'		      \
+			? strchr (haystack,				      \
+				  ((__const char *) (needle))[0]) 	      \
+			: strstr (haystack, needle)))			      \
+		  : strstr (haystack, needle)))
+#endif
+
+
+#if defined __USE_GNU && !defined _FORCE_INLINES
+# ifndef _HAVE_STRING_ARCH_strnlen
+__STRING_INLINE size_t
+strnlen (__const char *__string, size_t __maxlen)
+{
+  __const char *__end = (__const char *) memchr (__string, '\0', __maxlen);
+  return __end ? (size_t) (__end - __string) : __maxlen;
+}
+# endif
+#endif
+
+
+#ifndef _HAVE_STRING_ARCH_strtok_r
+# define __strtok_r(s, sep, nextp) \
+  (__extension__ (__builtin_constant_p (sep) && __string2_1bptr_p (sep)	      \
+		  ? (((__const char *) (sep))[0] != '\0'		      \
+		     && ((__const char *) (sep))[1] == '\0'		      \
+		     ? __strtok_r_1c (s, ((__const char *) (sep))[0], nextp)  \
+		     : __strtok_r (s, sep, nextp))			      \
+		  : __strtok_r (s, sep, nextp)))
+
+__STRING_INLINE char *__strtok_r_1c (char *__s, char __sep, char **__nextp);
+__STRING_INLINE char *
+__strtok_r_1c (char *__s, char __sep, char **__nextp)
+{
+  char *__result;
+  if (__s == NULL)
+    __s = *__nextp;
+  while (*__s == __sep)
+    ++__s;
+  if (*__s == '\0')
+    __result = NULL;
+  else
+    {
+      __result = __s;
+      while (*__s != '\0' && *__s != __sep)
+	++__s;
+      if (*__s == '\0')
+	*__nextp = __s;
+      else
+	{
+	  *__s = '\0';
+	  *__nextp = __s + 1;
+	}
+    }
+  return __result;
+}
+# if defined __USE_POSIX || defined __USE_MISC
+#  define strtok_r(s, sep, nextp) __strtok_r ((s), (sep), (nextp))
+# endif
+#endif
+
+
+#ifndef _HAVE_STRING_ARCH_strsep
+
+# define __strsep(s, reject) \
+  __extension__								      \
+  ({ char __r0, __r1, __r2;						      \
+     (__builtin_constant_p (reject) && __string2_1bptr_p (reject)	      \
+      && (__r0 = ((__const char *) (reject))[0],			      \
+	  ((__const char *) (reject))[0] != '\0')			      \
+      ? ((__r1 = ((__const char *) (reject))[1],			      \
+	 ((__const char *) (reject))[1] == '\0')			      \
+	 ? __strsep_1c (s, __r0)					      \
+	 : ((__r2 = ((__const char *) (reject))[2], __r2 == '\0')	      \
+	    ? __strsep_2c (s, __r0, __r1)				      \
+	    : (((__const char *) (reject))[3] == '\0'			      \
+	       ? __strsep_3c (s, __r0, __r1, __r2)			      \
+	       : __strsep_g (s, reject))))				      \
+      : __strsep_g (s, reject)); })
+
+__STRING_INLINE char *__strsep_1c (char **__s, char __reject);
+__STRING_INLINE char *
+__strsep_1c (char **__s, char __reject)
+{
+  register char *__retval = *__s;
+  if (__retval == NULL)
+    return *__s = NULL;
+  if (*__retval == __reject)
+    *(*__s)++ = '\0';
+  else
+    if ((*__s = strchr (__retval, __reject)) != NULL)
+      *(*__s)++ = '\0';
+    else
+      *__s = NULL;
+  return __retval;
+}
+
+__STRING_INLINE char *__strsep_2c (char **__s, char __reject1, char __reject2);
+__STRING_INLINE char *
+__strsep_2c (char **__s, char __reject1, char __reject2)
+{
+  register char *__retval = *__s;
+  if (__retval == NULL)
+    return *__s = NULL;
+  if (*__retval == __reject1 || *__retval == __reject2)
+    *(*__s)++ = '\0';
+  else
+    {
+      register char *__cp = __retval;
+      while (*__cp != '\0' && *__cp != __reject1 && *__cp != __reject2)
+	++__cp;
+      if (*__cp != '\0')
+	{
+	  *__s = __cp;
+	  *(*__s)++ = '\0';
+	}
+      else
+	*__s = NULL;
+    }
+  return __retval;
+}
+
+__STRING_INLINE char *__strsep_3c (char **__s, char __reject1, char __reject2,
+				   char __reject3);
+__STRING_INLINE char *
+__strsep_3c (char **__s, char __reject1, char __reject2, char __reject3)
+{
+  register char *__retval = *__s;
+  if (__retval == NULL)
+    return *__s = NULL;
+  if (*__retval == __reject1 || *__retval == __reject2
+      || *__retval == __reject3)
+    *(*__s)++ = '\0';
+  else
+    {
+      register char *__cp = __retval;
+      while (*__cp != '\0' && *__cp != __reject1 && *__cp != __reject2
+	     && *__cp != __reject3)
+	++__cp;
+      if (*__cp != '\0')
+	{
+	  *__s = __cp;
+	  *(*__s)++ = '\0';
+	}
+      else
+	*__s = NULL;
+    }
+  return __retval;
+}
+
+__STRING_INLINE char *__strsep_g (char **__s, __const char *__reject);
+__STRING_INLINE char *
+__strsep_g (char **__s, __const char *__reject)
+{
+  register char *__retval = *__s;
+  if (__retval == NULL)
+    return NULL;
+  if ((*__s = strpbrk (__retval, __reject)) != NULL)
+    *(*__s)++ = '\0';
+  return __retval;
+}
+# ifdef __USE_BSD
+#  define strsep(s, reject) __strsep ((s), (reject))
+# endif
+#endif
+
+/* We need the memory allocation functions for inline strdup().
+   Referring to stdlib.h (even minimally) is not allowed
+   in any of the tight standards compliant modes.  */
+#ifdef __USE_MISC
+
+# if !defined _HAVE_STRING_ARCH_strdup || !defined _HAVE_STRING_ARCH_strndup
+#  define __need_malloc_and_calloc
+#  include <stdlib.h>
+# endif
+
+# ifndef _HAVE_STRING_ARCH_strdup
+
+#  define __strdup(s) \
+  (__extension__ (__builtin_constant_p (s) && __string2_1bptr_p (s)	      \
+		  ? (((__const char *) (s))[0] == '\0'			      \
+		     ? (char *) calloc (1, 1)				      \
+		     : ({ size_t __len = strlen (s) + 1;		      \
+			  char *__retval = (char *) malloc (__len);	      \
+			  if (__retval != NULL)				      \
+			    __retval = (char *) memcpy (__retval, s, __len);  \
+			  __retval; }))					      \
+		  : __strdup (s)))
+
+#  if defined __USE_SVID || defined __USE_BSD || defined __USE_XOPEN_EXTENDED
+#   define strdup(s) __strdup (s)
+#  endif
+# endif
+
+#endif /* Use misc. or use GNU.  */
+
+#ifndef _FORCE_INLINES
+# undef __STRING_INLINE
+#endif
+
+#endif /* No string inlines.  */