From 665ce29c84a830259683fdb58c76da7efc00f890 Mon Sep 17 00:00:00 2001 From: David Schleef Date: Tue, 22 May 2001 14:32:43 +0000 Subject: Copied bits/*.h from Debian MIPS libc6-dev 2.2.2-4 package. --- libc/sysdeps/linux/mips/bits/string2.h | 1244 ++++++++++++++++++++++++++++++++ 1 file changed, 1244 insertions(+) create mode 100644 libc/sysdeps/linux/mips/bits/string2.h (limited to 'libc/sysdeps/linux/mips/bits/string2.h') diff --git a/libc/sysdeps/linux/mips/bits/string2.h b/libc/sysdeps/linux/mips/bits/string2.h new file mode 100644 index 000000000..e25750c53 --- /dev/null +++ b/libc/sysdeps/linux/mips/bits/string2.h @@ -0,0 +1,1244 @@ +/* Machine-independant string function optimizations. + Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 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 directly; include instead." +#endif + +#if !defined __NO_STRING_INLINES && !defined __BOUNDED_POINTERS__ + +/* Unlike the definitions in the header 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 + 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 +# include + +# 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 __GNUC_PREREQ (2, 91) +# 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) \ + ((__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) +__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 void *__rawmemchr (const void *__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 _USE_STRING_ARCH_memset && defined _USE_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 _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, '\0'), \ + src, n)) = '\0', __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') \ + ? ((void) (s), 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') \ + ? ((void) (s), 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, 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 '\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, 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 '\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. 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] == '\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 +# 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] == '\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] == '\0' \ + ? (char *) calloc (1, 1) \ + : ({ size_t __len = strlen (s) + 1; \ + size_t __n = (n); \ + char *__retval; \ + if (__n < __len) \ + __len = __n; \ + __retval = (char *) malloc (__len); \ + if (__retval != NULL) \ + { \ + __retval[__len - 1] = '\0'; \ + __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. */ -- cgit v1.2.3