From 50a6ca39ad4ed01922aa4f755f0ca579788226cf Mon Sep 17 00:00:00 2001
From: Thomas Martitz <kugel@rockbox.org>
Date: Thu, 6 May 2010 21:04:40 +0000
Subject: Move c/h files implementing/defining standard library stuff into a
 new libc directory, also standard'ify some parts of the code base (almost
 entirely #include fixes). This is to a) to cleanup firmware/common and
 firmware/include a bit, but also b) for Rockbox as an application which
 should use the host system's c library and headers, separating makes it easy
 to exclude our files from the build.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25850 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/common/memchr.c | 116 -----------------------------------------------
 1 file changed, 116 deletions(-)
 delete mode 100644 firmware/common/memchr.c

(limited to 'firmware/common/memchr.c')

diff --git a/firmware/common/memchr.c b/firmware/common/memchr.c
deleted file mode 100644
index 26bdb9eea3..0000000000
--- a/firmware/common/memchr.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
-FUNCTION
-        <<memchr>>---search for character in memory
-
-INDEX
-        memchr
-
-ANSI_SYNOPSIS
-        #include <string.h>
-        void * memchr(const void *<[s1]>, int <[c]>, size_t <[n]>);
-
-TRAD_SYNOPSIS
-        #include <string.h>
-        void * memchr(<[s1]>, <[c]>, <[n]>);
-        void *<[string]>;
-        int *<[c]>;
-        size_t *<[n]>;
-
-DESCRIPTION
-        This function scans the first <[n]> bytes of the memory pointed
-        to by <[s1]> for the character <[c]> (converted to a char).
-
-RETURNS
-        Returns a pointer to the matching byte, or a null pointer if
-        <[c]> does not occur in <[s1]>.
-
-PORTABILITY
-<<memchr>> is ANSI C.
-
-<<memchr>> requires no supporting OS subroutines.
-
-QUICKREF
-        memchr ansi pure
-*/
-
-#include <string.h>
-#include <limits.h>
-
-/* Nonzero if X is not aligned on a "long" boundary.  */
-#define UNALIGNED(X) ((long)X & (sizeof (long) - 1))
-
-/* How many bytes are loaded each iteration of the word copy loop.  */
-#define LBLOCKSIZE (sizeof (long))
-
-#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
-
-/* DETECTCHAR returns nonzero if (long)X contains the byte used 
-   to fill (long)MASK. */
-#define DETECTCHAR(X,MASK) (DETECTNULL(X ^ MASK))
-
-void *
-_DEFUN (memchr, (s1, i, n),
-        _CONST void *s1 _AND
-        int i _AND size_t n)
-{
-  _CONST unsigned char *s = (_CONST unsigned char *)s1;
-#if defined(PREFER_SIZE_OVER_SPEED) || defined(__OPTIMIZE_SIZE__)
-  unsigned char c = (unsigned char)i;
-
-  while (n-- > 0)
-    {
-      if (*s == c)
-        {
-          return (void *)s;
-        }
-      s++;
-    }
-
-  return NULL;
-#else
-  unsigned char c = (unsigned char)i;
-  unsigned long mask,j;
-  unsigned long *aligned_addr;
-
-  if (!UNALIGNED (s))
-    {
-      mask = 0;
-      for (j = 0; j < LBLOCKSIZE; j++)
-        mask = (mask << 8) | c;
-
-      aligned_addr = (unsigned long*)s;
-      while ((!DETECTCHAR (*aligned_addr, mask)) && (n>LBLOCKSIZE))
-        {
-          aligned_addr++;
-          n -= LBLOCKSIZE;
-        }
-
-      /* The block of bytes currently pointed to by aligned_addr
-         may contain the target character or there may be less than
-         LBLOCKSIZE bytes left to search. We check the last few
-         bytes using the bytewise search.  */
-
-      s = (unsigned char*)aligned_addr;
-    }
-
-  while (n-- > 0)
-    {
-      if (*s == c)
-        {
-          return (void *)s;
-        }
-      s++;
-    }
-
-  return NULL;
-#endif /* not PREFER_SIZE_OVER_SPEED */
-}
-- 
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