*: introduce and use FAST_FUNC: regparm on i386, otherwise no-on

[oweals/busybox.git] / libbb / process_escape_sequence.c

diff --git a/libbb/process_escape_sequence.c b/libbb/process_escape_sequence.c
index 138e751f568705b65e014d284de2cf5ea7cdd600..4d03bd61f34641db39c956e6deec5045dd494e4b 100644 (file)
--- a/libbb/process_escape_sequence.c
+++ b/libbb/process_escape_sequence.c
@@ -8,9 +8,6 @@
  * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
-#include <stdio.h>
-#include <limits.h>
-#include <ctype.h>
 #include "libbb.h"
 
 #define WANT_HEX_ESCAPES 1
@@ -19,9 +16,9 @@
 #undef _tolower
 #define _tolower(X) ((X)|((char) 0x20))
 
-char bb_process_escape_sequence(const char **ptr)
+char FAST_FUNC bb_process_escape_sequence(const char **ptr)
 {
-       static const char charmap[] = {
+       static const char charmap[] ALIGN1 = {
                'a',  'b',  'f',  'n',  'r',  't',  'v',  '\\', 0,
                '\a', '\b', '\f', '\n', '\r', '\t', '\v', '\\', '\\' };
 
@@ -46,10 +43,10 @@ char bb_process_escape_sequence(const char **ptr)
 #endif
 
        do {
-               d = (unsigned int)(*q - '0');
+               d = (unsigned char)(*q) - '0';
 #ifdef WANT_HEX_ESCAPES
                if (d >= 10) {
-                       d = ((unsigned int)(_tolower(*q) - 'a')) + 10;
+                       d = (unsigned char)(_tolower(*q)) - 'a' + 10;
                }
 #endif
 
@@ -80,7 +77,7 @@ char bb_process_escape_sequence(const char **ptr)
                                break;
                        }
                } while (*++p);
-               n = *(p+(sizeof(charmap)/2));
+               n = *(p + (sizeof(charmap)/2));
        }
 
        *ptr = q;