diff options
Diffstat (limited to 'newlib/libc/string/stpcpy.c')
-rw-r--r-- | newlib/libc/string/stpcpy.c | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/newlib/libc/string/stpcpy.c b/newlib/libc/string/stpcpy.c deleted file mode 100644 index 62fe79997..000000000 --- a/newlib/libc/string/stpcpy.c +++ /dev/null @@ -1,91 +0,0 @@ -/* -FUNCTION - <<stpcpy>>---copy string returning a pointer to its end - -INDEX - stpcpy - -ANSI_SYNOPSIS - #include <string.h> - char *stpcpy(char *<[dst]>, const char *<[src]>); - -TRAD_SYNOPSIS - #include <string.h> - char *stpcpy(<[dst]>, <[src]>) - char *<[dst]>; - char *<[src]>; - -DESCRIPTION - <<stpcpy>> copies the string pointed to by <[src]> - (including the terminating null character) to the array - pointed to by <[dst]>. - -RETURNS - This function returns a pointer to the end of the destination string, - thus pointing to the trailing '\0'. - -PORTABILITY -<<stpcpy>> is a GNU extension, candidate for inclusion into POSIX/SUSv4. - -<<stpcpy>> requires no supporting OS subroutines. - -QUICKREF - stpcpy gnu -*/ - -#include <string.h> -#include <limits.h> - -/*SUPPRESS 560*/ -/*SUPPRESS 530*/ - -/* Nonzero if either X or Y is not aligned on a "long" boundary. */ -#define UNALIGNED(X, Y) \ - (((long)X & (sizeof (long) - 1)) | ((long)Y & (sizeof (long) - 1))) - -#if LONG_MAX == 2147483647L -#define DETECTNULL(X) (((X) - 0x01010101) & ~(X) & 0x80808080) -#else -#if LONG_MAX == 9223372036854775807L -/* Nonzero if X (a long int) contains a NULL byte. */ -#define DETECTNULL(X) (((X) - 0x0101010101010101) & ~(X) & 0x8080808080808080) -#else -#error long int is not a 32bit or 64bit type. -#endif -#endif - -#ifndef DETECTNULL -#error long int is not a 32bit or 64bit byte -#endif - -char* -_DEFUN (stpcpy, (dst, src), - char *dst _AND - _CONST char *src) -{ -#if !defined(PREFER_SIZE_OVER_SPEED) && !defined(__OPTIMIZE_SIZE__) - long *aligned_dst; - _CONST long *aligned_src; - - /* If SRC or DEST is unaligned, then copy bytes. */ - if (!UNALIGNED (src, dst)) - { - aligned_dst = (long*)dst; - aligned_src = (long*)src; - - /* SRC and DEST are both "long int" aligned, try to do "long int" - sized copies. */ - while (!DETECTNULL(*aligned_src)) - { - *aligned_dst++ = *aligned_src++; - } - - dst = (char*)aligned_dst; - src = (char*)aligned_src; - } -#endif /* not PREFER_SIZE_OVER_SPEED */ - - while ((*dst++ = *src++)) - ; - return --dst; -} |