diff options
Diffstat (limited to 'sysdeps/generic/memcmp.c')
| -rw-r--r-- | sysdeps/generic/memcmp.c | 54 |
1 files changed, 31 insertions, 23 deletions
diff --git a/sysdeps/generic/memcmp.c b/sysdeps/generic/memcmp.c index 844cdc6afb..213ccc07de 100644 --- a/sysdeps/generic/memcmp.c +++ b/sysdeps/generic/memcmp.c @@ -18,56 +18,64 @@ Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H -#include "config.h" +# include "config.h" #endif #undef __ptr_t -#if defined (__cplusplus) || (defined (__STDC__) && __STDC__) -#define __ptr_t void * +#if defined __cplusplus || (defined __STDC__ && __STDC__) +# define __ptr_t void * #else /* Not C++ or ANSI C. */ -#undef const -#define const -#define __ptr_t char * +# undef const +# define const +# define __ptr_t char * #endif /* C++ or ANSI C. */ -#if defined (HAVE_STRING_H) || defined (_LIBC) -#include <string.h> +#ifndef __P +# if defined __GNUC__ || (defined __STDC__ && __STDC__) +# define __P(args) args +# else +# define __P(args) () +# endif /* GCC. */ +#endif /* Not __P. */ + +#if defined HAVE_STRING_H || defined _LIBC +# include <string.h> #endif #undef memcmp #ifdef _LIBC -#include <memcopy.h> +# include <memcopy.h> #else /* Not in the GNU C library. */ -#include <sys/types.h> +# include <sys/types.h> /* Type to use for aligned memory operations. This should normally be the biggest type supported by a single load and store. Must be an unsigned type. */ -#define op_t unsigned long int -#define OPSIZ (sizeof(op_t)) +# define op_t unsigned long int +# define OPSIZ (sizeof(op_t)) /* Threshold value for when to enter the unrolled loops. */ -#define OP_T_THRES 16 +# define OP_T_THRES 16 /* Type to use for unaligned operations. */ typedef unsigned char byte; -#ifndef WORDS_BIGENDIAN -#define MERGE(w0, sh_1, w1, sh_2) (((w0) >> (sh_1)) | ((w1) << (sh_2))) -#else -#define MERGE(w0, sh_1, w1, sh_2) (((w0) << (sh_1)) | ((w1) >> (sh_2))) -#endif +# ifndef WORDS_BIGENDIAN +# define MERGE(w0, sh_1, w1, sh_2) (((w0) >> (sh_1)) | ((w1) << (sh_2))) +# else +# define MERGE(w0, sh_1, w1, sh_2) (((w0) << (sh_1)) | ((w1) >> (sh_2))) +# endif #endif /* In the GNU C library. */ #ifdef WORDS_BIGENDIAN -#define CMP_LT_OR_GT(a, b) ((a) > (b) ? 1 : -1) +# define CMP_LT_OR_GT(a, b) ((a) > (b) ? 1 : -1) #else -#define CMP_LT_OR_GT(a, b) memcmp_bytes ((a), (b)) +# define CMP_LT_OR_GT(a, b) memcmp_bytes ((a), (b)) #endif /* BE VERY CAREFUL IF YOU CHANGE THIS CODE! */ @@ -90,9 +98,9 @@ typedef unsigned char byte; static int memcmp_bytes __P((op_t, op_t)); -#ifdef __GNUC__ +# ifdef __GNUC__ __inline -#endif +# endif static int memcmp_bytes (a, b) op_t a, b; @@ -376,6 +384,6 @@ memcmp (s1, s2, len) } #ifdef weak_alias -#undef bcmp +# undef bcmp weak_alias (memcmp, bcmp) #endif |