string2.h
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上传日期:2009-04-28
资源大小:48287k
文件大小:47k
- /* Machine-independant string function optimizations.
- Copyright (C) 1997-2003, 2004 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 Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 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
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; 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
- #if !defined __NO_STRING_INLINES && !defined __BOUNDED_POINTERS__
- /* 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 GCC'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]; }
- __attribute__ ((__packed__)) __STRING2_COPY_ARR##N
- __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. */
- #if !defined _HAVE_STRING_ARCH_memset
- # if !__GNUC_PREREQ (3, 0)
- # 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) == ' '
- ? ({ 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 *) __u + 4);
- case 11:
- __u->__ui = __c * 0x01010101;
- __u = __extension__ ((void *) __u + 4);
- case 7:
- __u->__ui = __c * 0x01010101;
- __u = __extension__ ((void *) __u + 4);
- case 3:
- __u->__usi = (unsigned short int) __c * 0x0101;
- __u = __extension__ ((void *) __u + 2);
- __u->__uc = (unsigned char) __c;
- break;
-
- case 14:
- __u->__ui = __c * 0x01010101;
- __u = __extension__ ((void *) __u + 4);
- case 10:
- __u->__ui = __c * 0x01010101;
- __u = __extension__ ((void *) __u + 4);
- case 6:
- __u->__ui = __c * 0x01010101;
- __u = __extension__ ((void *) __u + 4);
- case 2:
- __u->__usi = (unsigned short int) __c * 0x0101;
- break;
-
- case 13:
- __u->__ui = __c * 0x01010101;
- __u = __extension__ ((void *) __u + 4);
- case 9:
- __u->__ui = __c * 0x01010101;
- __u = __extension__ ((void *) __u + 4);
- case 5:
- __u->__ui = __c * 0x01010101;
- __u = __extension__ ((void *) __u + 4);
- case 1:
- __u->__uc = (unsigned char) __c;
- break;
-
- case 16:
- __u->__ui = __c * 0x01010101;
- __u = __extension__ ((void *) __u + 4);
- case 12:
- __u->__ui = __c * 0x01010101;
- __u = __extension__ ((void *) __u + 4);
- case 8:
- __u->__ui = __c * 0x01010101;
- __u = __extension__ ((void *) __u + 4);
- case 4:
- __u->__ui = __c * 0x01010101;
- case 0:
- break;
- }
-
- __s; })
- # else
- # define memset(s, c, n)
- (__extension__ (__builtin_constant_p (c) && (c) == ' '
- ? ({ void *__s = (s); __bzero (__s, n); __s; })
- : memset (s, c, n)))
- # endif
- # endif
- /* GCC < 3.0 optimizes memset(s, 0, n) but not bzero(s, n).
- The optimization is broken before EGCS 1.1.
- GCC 3.0+ has __builtin_bzero as well, but at least till GCC 3.4
- if it decides to call the library function, it calls memset
- and not bzero. */
- # if __GNUC_PREREQ (2, 91)
- # define __bzero(s, n) __builtin_memset (s, ' ', n)
- # endif
- #endif
- /* Copy N bytes from SRC to DEST, returning pointer to byte following the
- last copied. */
- #ifdef __USE_GNU
- # if !defined _HAVE_STRING_ARCH_mempcpy || defined _FORCE_INLINES
- # ifndef _HAVE_STRING_ARCH_mempcpy
- # if __GNUC_PREREQ (3, 4)
- # define __mempcpy(dest, src, n) __builtin_mempcpy (dest, src, n)
- # elif __GNUC_PREREQ (3, 0)
- # define __mempcpy(dest, src, n)
- (__extension__ (__builtin_constant_p (src) && __builtin_constant_p (n)
- && __string2_1bptr_p (src) && n <= 8
- ? __builtin_memcpy (dest, src, n) + (n)
- : __mempcpy (dest, src, n)))
- # else
- # 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)))
- # endif
- /* 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)
- # endif
- # if !__GNUC_PREREQ (3, 0) || defined _FORCE_INLINES
- # if _STRING_ARCH_unaligned
- # ifndef _FORCE_INLINES
- # define __mempcpy_args(src)
- ((__const char *) (src))[0], ((__const char *) (src))[2],
- ((__const char *) (src))[4], ((__const 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)
- # endif
- __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 *) __u + 1);
- break;
- case 2:
- __u->__usi = __src0_2;
- __u = __extension__ ((void *) __u + 2);
- break;
- case 3:
- __u->__usi = __src0_2;
- __u = __extension__ ((void *) __u + 2);
- __u->__c = __src2_1;
- __u = __extension__ ((void *) __u + 1);
- break;
- case 4:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- break;
- case 5:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__c = __src4_1;
- __u = __extension__ ((void *) __u + 1);
- break;
- case 6:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__usi = __src4_2;
- __u = __extension__ ((void *) __u + 2);
- break;
- case 7:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__usi = __src4_2;
- __u = __extension__ ((void *) __u + 2);
- __u->__c = __src6_1;
- __u = __extension__ ((void *) __u + 1);
- break;
- case 8:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__ui = __src4_4;
- __u = __extension__ ((void *) __u + 4);
- break;
- }
- return (void *) __u;
- }
- # else
- # ifndef _FORCE_INLINES
- # 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] } })
- # endif
- __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 *) __u + __srclen);
- }
- # endif
- # endif
- # endif
- #endif
- /* Return pointer to C in S. */
- #ifndef _HAVE_STRING_ARCH_strchr
- extern void *__rawmemchr (const void *__s, int __c);
- # if __GNUC_PREREQ (3, 2)
- # define strchr(s, c)
- (__extension__ (__builtin_constant_p (c) && !__builtin_constant_p (s)
- && (c) == ' '
- ? (char *) __rawmemchr (s, c)
- : __builtin_strchr (s, c)))
- # else
- # define strchr(s, c)
- (__extension__ (__builtin_constant_p (c) && (c) == ' '
- ? (char *) __rawmemchr (s, c)
- : strchr (s, c)))
- # endif
- #endif
- /* Copy SRC to DEST. */
- #if (!defined _HAVE_STRING_ARCH_strcpy && !__GNUC_PREREQ (3, 0))
- || defined _FORCE_INLINES
- # if !defined _HAVE_STRING_ARCH_strcpy && !__GNUC_PREREQ (3, 0)
- # 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)))
- # endif
- # if _STRING_ARCH_unaligned
- # ifndef _FORCE_INLINES
- # 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)
- # endif
- __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 = ' ';
- break;
- case 2:
- __u->__usi = __src0_2;
- break;
- case 3:
- __u->__usi = __src0_2;
- __u = __extension__ ((void *) __u + 2);
- __u->__uc = ' ';
- break;
- case 4:
- __u->__ui = __src0_4;
- break;
- case 5:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__uc = ' ';
- break;
- case 6:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__usi = __src4_2;
- break;
- case 7:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__usi = __src4_2;
- __u = __extension__ ((void *) __u + 2);
- __u->__uc = ' ';
- break;
- case 8:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__ui = __src4_4;
- break;
- }
- return __dest;
- }
- # else
- # ifndef _FORCE_INLINES
- # define __strcpy_args(src)
- __extension__ ((__STRING2_COPY_ARR2)
- { { ((__const char *) (src))[0], ' ' } }),
- __extension__ ((__STRING2_COPY_ARR3)
- { { ((__const char *) (src))[0], ((__const char *) (src))[1],
- ' ' } }),
- __extension__ ((__STRING2_COPY_ARR4)
- { { ((__const char *) (src))[0], ((__const char *) (src))[1],
- ((__const char *) (src))[2], ' ' } }),
- __extension__ ((__STRING2_COPY_ARR5)
- { { ((__const char *) (src))[0], ((__const char *) (src))[1],
- ((__const char *) (src))[2], ((__const char *) (src))[3],
- ' ' } }),
- __extension__ ((__STRING2_COPY_ARR6)
- { { ((__const char *) (src))[0], ((__const char *) (src))[1],
- ((__const char *) (src))[2], ((__const char *) (src))[3],
- ((__const char *) (src))[4], ' ' } }),
- __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],
- ' ' } }),
- __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], ' ' } })
- # endif
- __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 = ' ';
- 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
- # if !defined _HAVE_STRING_ARCH_stpcpy || defined _FORCE_INLINES
- # ifndef _HAVE_STRING_ARCH_stpcpy
- # if __GNUC_PREREQ (3, 4)
- # define __stpcpy(dest, src) __builtin_stpcpy (dest, src)
- # elif __GNUC_PREREQ (3, 0)
- # define __stpcpy(dest, src)
- (__extension__ (__builtin_constant_p (src)
- ? (__string2_1bptr_p (src) && strlen (src) + 1 <= 8
- ? __builtin_strcpy (dest, src) + strlen (src)
- : ((char *) (__mempcpy) (dest, src, strlen (src) + 1)
- - 1))
- : __stpcpy (dest, src)))
- # else
- # 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)))
- # endif
- /* 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)
- # endif
- # if !__GNUC_PREREQ (3, 0) || defined _FORCE_INLINES
- # if _STRING_ARCH_unaligned
- # ifndef _FORCE_INLINES
- # 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)
- # endif
- __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 = ' ';
- break;
- case 2:
- __u->__usi = __src0_2;
- __u = __extension__ ((void *) __u + 1);
- break;
- case 3:
- __u->__usi = __src0_2;
- __u = __extension__ ((void *) __u + 2);
- __u->__uc = ' ';
- break;
- case 4:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 3);
- break;
- case 5:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__uc = ' ';
- break;
- case 6:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__usi = __src4_2;
- __u = __extension__ ((void *) __u + 1);
- break;
- case 7:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__usi = __src4_2;
- __u = __extension__ ((void *) __u + 2);
- __u->__uc = ' ';
- break;
- case 8:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__ui = __src4_4;
- __u = __extension__ ((void *) __u + 3);
- break;
- }
- return &__u->__c;
- }
- # else
- # ifndef _FORCE_INLINES
- # define __stpcpy_args(src)
- __extension__ ((__STRING2_COPY_ARR2)
- { { ((__const char *) (src))[0], ' ' } }),
- __extension__ ((__STRING2_COPY_ARR3)
- { { ((__const char *) (src))[0], ((__const char *) (src))[1],
- ' ' } }),
- __extension__ ((__STRING2_COPY_ARR4)
- { { ((__const char *) (src))[0], ((__const char *) (src))[1],
- ((__const char *) (src))[2], ' ' } }),
- __extension__ ((__STRING2_COPY_ARR5)
- { { ((__const char *) (src))[0], ((__const char *) (src))[1],
- ((__const char *) (src))[2], ((__const char *) (src))[3],
- ' ' } }),
- __extension__ ((__STRING2_COPY_ARR6)
- { { ((__const char *) (src))[0], ((__const char *) (src))[1],
- ((__const char *) (src))[2], ((__const char *) (src))[3],
- ((__const char *) (src))[4], ' ' } }),
- __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],
- ' ' } }),
- __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], ' ' } })
- # endif
- __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 = ' ';
- 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
- #endif
- /* Copy no more than N characters of SRC to DEST. */
- #ifndef _HAVE_STRING_ARCH_strncpy
- # if __GNUC_PREREQ (3, 2)
- # define strncpy(dest, src, n) __builtin_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 _USE_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)
- : (*((char *) __mempcpy (strchr (__dest, ' '),
- src, n)) = ' ', __dest))
- : strncat (dest, src, n); }))
- # elif __GNUC_PREREQ (3, 2)
- # define strncat(dest, src, n) __builtin_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
- # if __GNUC_PREREQ (3, 2)
- # 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))
- ? __builtin_strcmp (s1, s2)
- : (__builtin_constant_p (s1) && __string2_1bptr_p (s1)
- && (__s1_len = strlen (s1), __s1_len < 4)
- ? (__builtin_constant_p (s2) && __string2_1bptr_p (s2)
- ? __builtin_strcmp (s1, s2)
- : __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)
- ? __builtin_strcmp (s1, s2)
- : __strcmp_gc (s1, s2, __s2_len))
- : __builtin_strcmp (s1, s2)))); })
- # else
- # 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)))); })
- # endif
- # 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. */
- #if !defined _HAVE_STRING_ARCH_strcspn || defined _FORCE_INLINES
- # ifndef _HAVE_STRING_ARCH_strcspn
- # if __GNUC_PREREQ (3, 2)
- # define strcspn(s, reject)
- __extension__
- ({ char __r0, __r1, __r2;
- (__builtin_constant_p (reject) && __string2_1bptr_p (reject)
- ? ((__builtin_constant_p (s) && __string2_1bptr_p (s))
- ? __builtin_strcspn (s, reject)
- : ((__r0 = ((__const char *) (reject))[0], __r0 == ' ')
- ? strlen (s)
- : ((__r1 = ((__const char *) (reject))[1], __r1 == ' ')
- ? __strcspn_c1 (s, __r0)
- : ((__r2 = ((__const char *) (reject))[2], __r2 == ' ')
- ? __strcspn_c2 (s, __r0, __r1)
- : (((__const char *) (reject))[3] == ' '
- ? __strcspn_c3 (s, __r0, __r1, __r2)
- : __builtin_strcspn (s, reject))))))
- : __builtin_strcspn (s, reject)); })
- # else
- # define strcspn(s, reject)
- __extension__
- ({ char __r0, __r1, __r2;
- (__builtin_constant_p (reject) && __string2_1bptr_p (reject)
- ? ((__r0 = ((__const char *) (reject))[0], __r0 == ' ')
- ? strlen (s)
- : ((__r1 = ((__const char *) (reject))[1], __r1 == ' ')
- ? __strcspn_c1 (s, __r0)
- : ((__r2 = ((__const char *) (reject))[2], __r2 == ' ')
- ? __strcspn_c2 (s, __r0, __r1)
- : (((__const char *) (reject))[3] == ' '
- ? __strcspn_c3 (s, __r0, __r1, __r2)
- : strcspn (s, reject)))))
- : strcspn (s, reject)); })
- # endif
- # endif
- __STRING_INLINE size_t __strcspn_c1 (__const char *__s, int __reject);
- __STRING_INLINE size_t
- __strcspn_c1 (__const char *__s, int __reject)
- {
- register size_t __result = 0;
- while (__s[__result] != ' ' && __s[__result] != __reject)
- ++__result;
- return __result;
- }
- __STRING_INLINE size_t __strcspn_c2 (__const char *__s, int __reject1,
- int __reject2);
- __STRING_INLINE size_t
- __strcspn_c2 (__const char *__s, int __reject1, int __reject2)
- {
- register size_t __result = 0;
- while (__s[__result] != ' ' && __s[__result] != __reject1
- && __s[__result] != __reject2)
- ++__result;
- return __result;
- }
- __STRING_INLINE size_t __strcspn_c3 (__const char *__s, int __reject1,
- int __reject2, int __reject3);
- __STRING_INLINE size_t
- __strcspn_c3 (__const char *__s, int __reject1, int __reject2,
- int __reject3)
- {
- register size_t __result = 0;
- while (__s[__result] != ' ' && __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. */
- #if !defined _HAVE_STRING_ARCH_strspn || defined _FORCE_INLINES
- # ifndef _HAVE_STRING_ARCH_strspn
- # if __GNUC_PREREQ (3, 2)
- # define strspn(s, accept)
- __extension__
- ({ char __a0, __a1, __a2;
- (__builtin_constant_p (accept) && __string2_1bptr_p (accept)
- ? ((__builtin_constant_p (s) && __string2_1bptr_p (s))
- ? __builtin_strspn (s, accept)
- : ((__a0 = ((__const char *) (accept))[0], __a0 == ' ')
- ? ((void) (s), 0)
- : ((__a1 = ((__const char *) (accept))[1], __a1 == ' ')
- ? __strspn_c1 (s, __a0)
- : ((__a2 = ((__const char *) (accept))[2], __a2 == ' ')
- ? __strspn_c2 (s, __a0, __a1)
- : (((__const char *) (accept))[3] == ' '
- ? __strspn_c3 (s, __a0, __a1, __a2)
- : __builtin_strspn (s, accept))))))
- : __builtin_strspn (s, accept)); })
- # else
- # define strspn(s, accept)
- __extension__
- ({ char __a0, __a1, __a2;
- (__builtin_constant_p (accept) && __string2_1bptr_p (accept)
- ? ((__a0 = ((__const char *) (accept))[0], __a0 == ' ')
- ? ((void) (s), 0)
- : ((__a1 = ((__const char *) (accept))[1], __a1 == ' ')
- ? __strspn_c1 (s, __a0)
- : ((__a2 = ((__const char *) (accept))[2], __a2 == ' ')
- ? __strspn_c2 (s, __a0, __a1)
- : (((__const char *) (accept))[3] == ' '
- ? __strspn_c3 (s, __a0, __a1, __a2)
- : strspn (s, accept)))))
- : strspn (s, accept)); })
- # endif
- # endif
- __STRING_INLINE size_t __strspn_c1 (__const char *__s, int __accept);
- __STRING_INLINE size_t
- __strspn_c1 (__const char *__s, int __accept)
- {
- register size_t __result = 0;
- /* Please note that __accept never can be ' '. */
- while (__s[__result] == __accept)
- ++__result;
- return __result;
- }
- __STRING_INLINE size_t __strspn_c2 (__const char *__s, int __accept1,
- int __accept2);
- __STRING_INLINE size_t
- __strspn_c2 (__const char *__s, int __accept1, int __accept2)
- {
- register size_t __result = 0;
- /* Please note that __accept1 and __accept2 never can be ' '. */
- while (__s[__result] == __accept1 || __s[__result] == __accept2)
- ++__result;
- return __result;
- }
- __STRING_INLINE size_t __strspn_c3 (__const char *__s, int __accept1,
- int __accept2, int __accept3);
- __STRING_INLINE size_t
- __strspn_c3 (__const char *__s, int __accept1, int __accept2, int __accept3)
- {
- register size_t __result = 0;
- /* Please note that __accept1 to __accept3 never can be ' '. */
- 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. */
- #if !defined _HAVE_STRING_ARCH_strpbrk || defined _FORCE_INLINES
- # ifndef _HAVE_STRING_ARCH_strpbrk
- # if __GNUC_PREREQ (3, 2)
- # define strpbrk(s, accept)
- __extension__
- ({ char __a0, __a1, __a2;
- (__builtin_constant_p (accept) && __string2_1bptr_p (accept)
- ? ((__builtin_constant_p (s) && __string2_1bptr_p (s))
- ? __builtin_strpbrk (s, accept)
- : ((__a0 = ((__const char *) (accept))[0], __a0 == ' ')
- ? ((void) (s), (char *) NULL)
- : ((__a1 = ((__const char *) (accept))[1], __a1 == ' ')
- ? __builtin_strchr (s, __a0)
- : ((__a2 = ((__const char *) (accept))[2], __a2 == ' ')
- ? __strpbrk_c2 (s, __a0, __a1)
- : (((__const char *) (accept))[3] == ' '
- ? __strpbrk_c3 (s, __a0, __a1, __a2)
- : __builtin_strpbrk (s, accept))))))
- : __builtin_strpbrk (s, accept)); })
- # else
- # define strpbrk(s, accept)
- __extension__
- ({ char __a0, __a1, __a2;
- (__builtin_constant_p (accept) && __string2_1bptr_p (accept)
- ? ((__a0 = ((__const char *) (accept))[0], __a0 == ' ')
- ? ((void) (s), (char *) NULL)
- : ((__a1 = ((__const char *) (accept))[1], __a1 == ' ')
- ? strchr (s, __a0)
- : ((__a2 = ((__const char *) (accept))[2], __a2 == ' ')
- ? __strpbrk_c2 (s, __a0, __a1)
- : (((__const char *) (accept))[3] == ' '
- ? __strpbrk_c3 (s, __a0, __a1, __a2)
- : strpbrk (s, accept)))))
- : strpbrk (s, accept)); })
- # endif
- # endif
- __STRING_INLINE char *__strpbrk_c2 (__const char *__s, int __accept1,
- int __accept2);
- __STRING_INLINE char *
- __strpbrk_c2 (__const char *__s, int __accept1, int __accept2)
- {
- /* Please note that __accept1 and __accept2 never can be ' '. */
- while (*__s != ' ' && *__s != __accept1 && *__s != __accept2)
- ++__s;
- return *__s == ' ' ? NULL : (char *) (size_t) __s;
- }
- __STRING_INLINE char *__strpbrk_c3 (__const char *__s, int __accept1,
- int __accept2, int __accept3);
- __STRING_INLINE char *
- __strpbrk_c3 (__const char *__s, int __accept1, int __accept2,
- int __accept3)
- {
- /* Please note that __accept1 to __accept3 never can be ' '. */
- while (*__s != ' ' && *__s != __accept1 && *__s != __accept2
- && *__s != __accept3)
- ++__s;
- return *__s == ' ' ? NULL : (char *) (size_t) __s;
- }
- #endif
- /* Find the first occurrence of NEEDLE in HAYSTACK. Newer gcc versions
- do this itself. */
- #if !defined _HAVE_STRING_ARCH_strstr && !__GNUC_PREREQ (2, 97)
- # define strstr(haystack, needle)
- (__extension__ (__builtin_constant_p (needle) && __string2_1bptr_p (needle)
- ? (((__const char *) (needle))[0] == ' '
- ? (char *) (size_t) (haystack)
- : (((__const char *) (needle))[1] == ' '
- ? strchr (haystack,
- ((__const char *) (needle))[0])
- : strstr (haystack, needle)))
- : strstr (haystack, needle)))
- #endif
- #if !defined _HAVE_STRING_ARCH_strtok_r || defined _FORCE_INLINES
- # 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] != ' '
- && ((__const char *) (sep))[1] == ' '
- ? __strtok_r_1c (s, ((__const char *) (sep))[0], nextp)
- : __strtok_r (s, sep, nextp))
- : __strtok_r (s, sep, nextp)))
- # endif
- __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;
- __result = NULL;
- if (*__s != ' ')
- {
- __result = __s++;
- while (*__s != ' ')
- if (*__s++ == __sep)
- {
- __s[-1] = ' ';
- break;
- }
- *__nextp = __s;
- }
- return __result;
- }
- # if defined __USE_POSIX || defined __USE_MISC
- # define strtok_r(s, sep, nextp) __strtok_r (s, sep, nextp)
- # endif
- #endif
- #if !defined _HAVE_STRING_ARCH_strsep || defined _FORCE_INLINES
- # ifndef _HAVE_STRING_ARCH_strsep
- extern char *__strsep_g (char **__stringp, __const char *__delim);
- # 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] != ' ')
- ? ((__r1 = ((__const char *) (reject))[1],
- ((__const char *) (reject))[1] == ' ')
- ? __strsep_1c (s, __r0)
- : ((__r2 = ((__const char *) (reject))[2], __r2 == ' ')
- ? __strsep_2c (s, __r0, __r1)
- : (((__const char *) (reject))[3] == ' '
- ? __strsep_3c (s, __r0, __r1, __r2)
- : __strsep_g (s, reject))))
- : __strsep_g (s, reject)); })
- # endif
- __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 && (*__s = strchr (__retval, __reject)) != NULL)
- *(*__s)++ = ' ';
- 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)
- {
- register char *__cp = __retval;
- while (1)
- {
- if (*__cp == ' ')
- {
- __cp = NULL;
- break;
- }
- if (*__cp == __reject1 || *__cp == __reject2)
- {
- *__cp++ = ' ';
- break;
- }
- ++__cp;
- }
- *__s = __cp;
- }
- 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)
- {
- register char *__cp = __retval;
- while (1)
- {
- if (*__cp == ' ')
- {
- __cp = NULL;
- break;
- }
- if (*__cp == __reject1 || *__cp == __reject2 || *__cp == __reject3)
- {
- *__cp++ = ' ';
- break;
- }
- ++__cp;
- }
- *__s = __cp;
- }
- 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
- extern char *__strdup (__const char *__string) __THROW __attribute_malloc__;
- # define __strdup(s)
- (__extension__ (__builtin_constant_p (s) && __string2_1bptr_p (s)
- ? (((__const char *) (s))[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
- # ifndef _HAVE_STRING_ARCH_strndup
- extern char *__strndup (__const char *__string, size_t __n)
- __THROW __attribute_malloc__;
- # define __strndup(s, n)
- (__extension__ (__builtin_constant_p (s) && __string2_1bptr_p (s)
- ? (((__const char *) (s))[0] == ' '
- ? (char *) calloc (1, 1)
- : ({ size_t __len = strlen (s) + 1;
- size_t __n = (n);
- char *__retval;
- if (__n < __len)
- __len = __n + 1;
- __retval = (char *) malloc (__len);
- if (__retval != NULL)
- {
- __retval[__len - 1] = ' ';
- __retval = (char *) memcpy (__retval, s,
- __len - 1);
- }
- __retval; }))
- : __strndup (s, n)))
- # ifdef __USE_GNU
- # define strndup(s, n) __strndup (s, n)
- # endif
- # endif
- #endif /* Use misc. or use GNU. */
- #ifndef _FORCE_INLINES
- # undef __STRING_INLINE
- #endif
- #endif /* No string inlines. */