Remove all traces of reg_char.

* sysdeps/generic/memcopy.h (reg_char): Delete.
	* debug/strcat_chk.c: Use char, not reg_char.
	* debug/strcpy_chk.c: Likewise.
	* debug/strncat_chk.c: Likewise.
	* debug/strncpy_chk.c: Likewise.
	* string/memchr.c: Likewise.
	* string/memrchr.c: Likewise.
	* string/rawmemchr.c: Likewise.
	* string/strcat.c: Likewise.
	* string/strchr.c: Likewise.
	* string/strchrnul.c: Likewise.
	* string/strcmp.c: Likewise.
	* string/strcpy.c: Likewise.
	* string/strncat.c: Likewise.
	* string/strncmp.c: Likewise.
	* string/strncpy.c: Likewise.

string/memchr.c

@@ -30,8 +30,6 @@
 #if defined _LIBC
 # include <string.h>
 # include <memcopy.h>
-#else
-# define reg_char char
 #endif
 
 #if HAVE_STDLIB_H || defined _LIBC
@@ -68,7 +66,7 @@ __memchr (s, c_in, n)
   const unsigned char *char_ptr;
   const unsigned long int *longword_ptr;
   unsigned long int longword, magic_bits, charmask;
-  unsigned reg_char c;
+  unsigned char c;
 
   c = (unsigned char) c_in;
 

string/memrchr.c

@@ -33,8 +33,6 @@
 #if defined _LIBC
 # include <string.h>
 # include <memcopy.h>
-#else
-# define reg_char char
 #endif
 
 #if defined HAVE_LIMITS_H || defined _LIBC
@@ -71,7 +69,7 @@ MEMRCHR
   const unsigned char *char_ptr;
   const unsigned long int *longword_ptr;
   unsigned long int longword, magic_bits, charmask;
-  unsigned reg_char c;
+  unsigned char c;
 
   c = (unsigned char) c_in;
 

string/rawmemchr.c

@@ -31,8 +31,6 @@
 # include <string.h>
 # include <memcopy.h>
 # include <stdlib.h>
-#else
-# define reg_char char
 #endif
 
 #if defined (HAVE_LIMITS_H) || defined (_LIBC)
@@ -59,7 +57,7 @@ __rawmemchr (s, c_in)
   const unsigned char *char_ptr;
   const unsigned long int *longword_ptr;
   unsigned long int longword, magic_bits, charmask;
-  unsigned reg_char c;
+  unsigned char c;
 
   c = (unsigned char) c_in;
 

string/strcat.c

@@ -28,7 +28,7 @@ strcat (dest, src)
 {
   char *s1 = dest;
   const char *s2 = src;
-  reg_char c;
+  char c;
 
   /* Find the end of the string.  */
   do

string/strchr.c

@@ -36,7 +36,7 @@ strchr (s, c_in)
   const unsigned char *char_ptr;
   const unsigned long int *longword_ptr;
   unsigned long int longword, magic_bits, charmask;
-  unsigned reg_char c;
+  unsigned char c;
 
   c = (unsigned char) c_in;
 

string/strchrnul.c

@@ -36,7 +36,7 @@ __strchrnul (s, c_in)
   const unsigned char *char_ptr;
   const unsigned long int *longword_ptr;
   unsigned long int longword, magic_bits, charmask;
-  unsigned reg_char c;
+  unsigned char c;
 
   c = (unsigned char) c_in;
 

string/strcmp.c

@@ -30,7 +30,7 @@ strcmp (p1, p2)
 {
   register const unsigned char *s1 = (const unsigned char *) p1;
   register const unsigned char *s2 = (const unsigned char *) p2;
-  unsigned reg_char c1, c2;
+  unsigned char c1, c2;
 
   do
     {

string/strcpy.c

@@ -28,7 +28,7 @@ strcpy (dest, src)
      char *dest;
      const char *src;
 {
-  reg_char c;
+  char c;
   char *__unbounded s = (char *__unbounded) CHECK_BOUNDS_LOW (src);
   const ptrdiff_t off = CHECK_BOUNDS_LOW (dest) - s - 1;
   size_t n;

string/strncat.c

@@ -19,8 +19,6 @@
 
 #ifdef _LIBC
 # include <memcopy.h>
-#else
-typedef char reg_char;
 #endif
 
 #ifndef STRNCAT
@@ -31,7 +29,7 @@ typedef char reg_char;
 char *
 STRNCAT (char *s1, const char *s2, size_t n)
 {
-  reg_char c;
+  char c;
   char *s = s1;
 
   /* Find the end of S1.  */

string/strncmp.c

@@ -31,8 +31,8 @@
 int
 STRNCMP (const char *s1, const char *s2, size_t n)
 {
-  unsigned reg_char c1 = '\0';
-  unsigned reg_char c2 = '\0';
+  unsigned char c1 = '\0';
+  unsigned char c2 = '\0';
 
   if (n >= 4)
     {

string/strncpy.c

@@ -27,7 +27,7 @@
 char *
 STRNCPY (char *s1, const char *s2, size_t n)
 {
-  reg_char c;
+  char c;
   char *s = s1;
 
   --s1;