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Commit 21299dbd by Zack Weinberg Committed by Zack Weinberg
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safe-ctype.h (HC_UNKNOWN, [...]): Rename to HOST_CHARSET_UNKNOWN... 

include:
	* safe-ctype.h (HC_UNKNOWN, HC_ASCII, HC_EBCDIC): Rename to
	HOST_CHARSET_UNKNOWN, HOST_CHARSET_ASCII, HOST_CHARSET_EBCDIC
	respectively.
libiberty:
	* safe-ctype.c: Use HOST_CHARSET_ASCII and HOST_CHARSET_EBCDIC,
	not HC_ASCII and HC_EBCDIC.
	Add documentation in form expected by gather-docs.
	* hex.c: Use HOST_CHARSET, not hand-coded check of character set.
	* Makefile.in, functions.texi: Regenerate.
gcc:
	* config/i370/i370.c, config/i370/i370.h: Use HOST_CHARSET_ASCII
	and HOST_CHARSET_EBCDIC, not HC_ASCII and HC_EBCDIC.

From-SVN: r68335
parent 3b9cd5c8
Showing with 233 additions and 31 deletions
gcc/ChangeLog
2003-06-22 Zack Weinberg <zack@codesourcery.com>
* config/i370/i370.c, config/i370/i370.h: Use HOST_CHARSET_ASCII
and HOST_CHARSET_EBCDIC, not HC_ASCII and HC_EBCDIC.
2003-06-22 Kazu Hirata <kazu@cs.umass.edu> 2003-06-22 Kazu Hirata <kazu@cs.umass.edu>
* doc/rtl.texi: Fix the @findex for pre_modify. * doc/rtl.texi: Fix the @findex for pre_modify.
......
gcc/config/i370/i370.c
...@@ -121,7 +121,7 @@ static bool i370_rtx_costs PARAMS ((rtx, int, int, int *)); ...@@ -121,7 +121,7 @@ static bool i370_rtx_costs PARAMS ((rtx, int, int, int *));
#ifdef TARGET_HLASM #ifdef TARGET_HLASM
#define MVS_HASH_PRIME 999983 #define MVS_HASH_PRIME 999983
#if HOST_CHARSET == HC_EBCDIC #if HOST_CHARSET == HOST_CHARSET_EBCDIC
#define MVS_SET_SIZE 256 #define MVS_SET_SIZE 256
#else #else
#define MVS_SET_SIZE 128 #define MVS_SET_SIZE 128
...@@ -156,7 +156,7 @@ static alias_node_t *alias_anchor = 0; ...@@ -156,7 +156,7 @@ static alias_node_t *alias_anchor = 0;
and must handled in a special manner. */ and must handled in a special manner. */
static const char *const mvs_function_table[MVS_FUNCTION_TABLE_LENGTH] = static const char *const mvs_function_table[MVS_FUNCTION_TABLE_LENGTH] =
{ {
#if HOST_CHARSET == HC_EBCDIC /* Changed for EBCDIC collating sequence */ #if HOST_CHARSET == HOST_CHARSET_EBCDIC /* Changed for EBCDIC collating sequence */
"ceil", "edc_acos", "edc_asin", "edc_atan", "edc_ata2", "edc_cos", "ceil", "edc_acos", "edc_asin", "edc_atan", "edc_ata2", "edc_cos",
"edc_cosh", "edc_erf", "edc_erfc", "edc_exp", "edc_gamm", "edc_lg10", "edc_cosh", "edc_erf", "edc_erfc", "edc_exp", "edc_gamm", "edc_lg10",
"edc_log", "edc_sin", "edc_sinh", "edc_sqrt", "edc_tan", "edc_tanh", "edc_log", "edc_sin", "edc_sinh", "edc_sqrt", "edc_tan", "edc_tanh",
...@@ -176,7 +176,7 @@ static const char *const mvs_function_table[MVS_FUNCTION_TABLE_LENGTH] = ...@@ -176,7 +176,7 @@ static const char *const mvs_function_table[MVS_FUNCTION_TABLE_LENGTH] =
#endif /* TARGET_HLASM */ #endif /* TARGET_HLASM */
/* ===================================================== */ /* ===================================================== */
#if defined(TARGET_EBCDIC) && HOST_CHARSET == HC_ASCII #if defined(TARGET_EBCDIC) && HOST_CHARSET == HOST_CHARSET_ASCII
/* ASCII to EBCDIC conversion table. */ /* ASCII to EBCDIC conversion table. */
static const unsigned char ascebc[256] = static const unsigned char ascebc[256] =
{ {
...@@ -231,7 +231,7 @@ static const unsigned char ascebc[256] = ...@@ -231,7 +231,7 @@ static const unsigned char ascebc[256] =
}; };
#endif /* target EBCDIC, host ASCII */ #endif /* target EBCDIC, host ASCII */
#if !defined(TARGET_EBCDIC) && HOST_CHARSET == HC_EBCDIC #if !defined(TARGET_EBCDIC) && HOST_CHARSET == HOST_CHARSET_EBCDIC
/* EBCDIC to ASCII conversion table. */ /* EBCDIC to ASCII conversion table. */
static const unsigned char ebcasc[256] = static const unsigned char ebcasc[256] =
{ {
...@@ -350,11 +350,11 @@ char ...@@ -350,11 +350,11 @@ char
mvs_map_char (c) mvs_map_char (c)
int c; int c;
{ {
#if defined(TARGET_EBCDIC) && HOST_CHARSET == HC_ASCII #if defined(TARGET_EBCDIC) && HOST_CHARSET == HOST_CHARSET_ASCII
fprintf (stderr, "mvs_map_char: TE & !HE: c = %02x\n", c); fprintf (stderr, "mvs_map_char: TE & !HE: c = %02x\n", c);
return ascebc[c]; return ascebc[c];
#else #else
#if !defined(TARGET_EBCDIC) && HOST_CHARSET == HC_EBCDIC #if !defined(TARGET_EBCDIC) && HOST_CHARSET == HOST_CHARSET_EBCDIC
fprintf (stderr, "mvs_map_char: !TE & HE: c = %02x\n", c); fprintf (stderr, "mvs_map_char: !TE & HE: c = %02x\n", c);
return ebcasc[c]; return ebcasc[c];
#else #else
......
gcc/config/i370/i370.h
...@@ -141,7 +141,7 @@ extern size_t mvs_function_name_length; ...@@ -141,7 +141,7 @@ extern size_t mvs_function_name_length;
/* but only define it if really needed, since otherwise it will break builds */ /* but only define it if really needed, since otherwise it will break builds */
#ifdef TARGET_EBCDIC #ifdef TARGET_EBCDIC
#if HOST_CHARSET == HC_EBCDIC #if HOST_CHARSET == HOST_CHARSET_EBCDIC
#define MAP_CHARACTER(c) ((char)(c)) #define MAP_CHARACTER(c) ((char)(c))
#else #else
#define MAP_CHARACTER(c) ((char)mvs_map_char (c)) #define MAP_CHARACTER(c) ((char)mvs_map_char (c))
......
include/ChangeLog
2003-06-22 Zack Weinberg <zack@codesourcery.com>
* safe-ctype.h (HC_UNKNOWN, HC_ASCII, HC_EBCDIC): Rename to
HOST_CHARSET_UNKNOWN, HOST_CHARSET_ASCII, HOST_CHARSET_EBCDIC
respectively.
2003-06-21 Zack Weinberg <zack@codesourcery.com> 2003-06-21 Zack Weinberg <zack@codesourcery.com>
* safe-ctype.h (HC_UNKNOWN, HC_ASCII, HC_EBCDIC, HOST_CHARSET): * safe-ctype.h (HC_UNKNOWN, HC_ASCII, HC_EBCDIC, HOST_CHARSET):
......
include/safe-ctype.h
...@@ -40,19 +40,19 @@ Boston, MA 02111-1307, USA. */ ...@@ -40,19 +40,19 @@ Boston, MA 02111-1307, USA. */
#endif #endif
/* Determine host character set. */ /* Determine host character set. */
#define HC_UNKNOWN 0 #define HOST_CHARSET_UNKNOWN 0
#define HC_ASCII 1 #define HOST_CHARSET_ASCII 1
#define HC_EBCDIC 2 #define HOST_CHARSET_EBCDIC 2
#if '\n' == 0x0A && ' ' == 0x20 && '0' == 0x30 \ #if '\n' == 0x0A && ' ' == 0x20 && '0' == 0x30 \
&& 'A' == 0x41 && 'a' == 0x61 && '!' == 0x21 && 'A' == 0x41 && 'a' == 0x61 && '!' == 0x21
# define HOST_CHARSET HC_ASCII # define HOST_CHARSET HOST_CHARSET_ASCII
#else #else
# if '\n' == 0x15 && ' ' == 0x40 && '0' == 0xF0 \ # if '\n' == 0x15 && ' ' == 0x40 && '0' == 0xF0 \
&& 'A' == 0xC1 && 'a' == 0x81 && '!' == 0x5A && 'A' == 0xC1 && 'a' == 0x81 && '!' == 0x5A
# define HOST_CHARSET HC_EBCDIC # define HOST_CHARSET HOST_CHARSET_EBCDIC
# else # else
# define HOST_CHARSET HC_UNKNOWN # define HOST_CHARSET HOST_CHARSET_UNKNOWN
# endif # endif
#endif #endif
......
libiberty/ChangeLog
2003-06-22 Zack Weinberg <zack@codesourcery.com>
* safe-ctype.c: Use HOST_CHARSET_ASCII and HOST_CHARSET_EBCDIC,
not HC_ASCII and HC_EBCDIC.
Add documentation in form expected by gather-docs.
* hex.c: Use HOST_CHARSET, not hand-coded check of character set.
* Makefile.in, functions.texi: Regenerate.
2003-06-21 Zack Weinberg <zack@codesourcery.com> 2003-06-21 Zack Weinberg <zack@codesourcery.com>
* safe-ctype.c: Separate out EOF==-1 check. Use HOST_CHARSET * safe-ctype.c: Separate out EOF==-1 check. Use HOST_CHARSET
......
libiberty/Makefile.in
...@@ -447,7 +447,8 @@ getpwd.o: config.h $(INCDIR)/ansidecl.h $(INCDIR)/libiberty.h ...@@ -447,7 +447,8 @@ getpwd.o: config.h $(INCDIR)/ansidecl.h $(INCDIR)/libiberty.h
getruntime.o: config.h $(INCDIR)/ansidecl.h $(INCDIR)/libiberty.h getruntime.o: config.h $(INCDIR)/ansidecl.h $(INCDIR)/libiberty.h
hashtab.o: config.h $(INCDIR)/ansidecl.h $(INCDIR)/hashtab.h \ hashtab.o: config.h $(INCDIR)/ansidecl.h $(INCDIR)/hashtab.h \
$(INCDIR)/libiberty.h $(INCDIR)/libiberty.h
hex.o: $(INCDIR)/ansidecl.h $(INCDIR)/libiberty.h hex.o: $(INCDIR)/ansidecl.h $(INCDIR)/libiberty.h \
$(INCDIR)/safe-ctype.h
lbasename.o: $(INCDIR)/ansidecl.h $(INCDIR)/libiberty.h \ lbasename.o: $(INCDIR)/ansidecl.h $(INCDIR)/libiberty.h \
$(INCDIR)/safe-ctype.h $(INCDIR)/safe-ctype.h
lrealpath.o: config.h $(INCDIR)/ansidecl.h $(INCDIR)/libiberty.h lrealpath.o: config.h $(INCDIR)/ansidecl.h $(INCDIR)/libiberty.h
......
libiberty/functions.texi
...@@ -3,6 +3,28 @@ ...@@ -3,6 +3,28 @@
@c Edit the *.c files, configure with --enable-maintainer-mode, @c Edit the *.c files, configure with --enable-maintainer-mode,
@c and let gather-docs build you a new copy. @c and let gather-docs build you a new copy.
@c safe-ctype.c:24
@defvr Extension HOST_CHARSET
This macro indicates the basic character set and encoding used by the
host: more precisely, the encoding used for character constants in
preprocessor @samp{#if} statements (the C "execution character set").
It is defined by @file{safe-ctype.h}, and will be an integer constant
with one of the following values:
@ftable @code
@item HOST_CHARSET_UNKNOWN
The host character set is unknown - that is, not one of the next two
possibilities.
@item HOST_CHARSET_ASCII
The host character set is ASCII.
@item HOST_CHARSET_EBCDIC
The host character set is some variant of EBCDIC. (Only one of the
nineteen EBCDIC varying characters is tested; exercise caution.)
@end ftable
@end defvr
@c alloca.c:26 @c alloca.c:26
@deftypefn Replacement void* alloca (size_t @var{size}) @deftypefn Replacement void* alloca (size_t @var{size})
...@@ -317,7 +339,7 @@ between calls to @code{getpwd}. ...@@ -317,7 +339,7 @@ between calls to @code{getpwd}.
@end deftypefn @end deftypefn
@c hex.c:25 @c hex.c:30
@deftypefn Extension void hex_init (void) @deftypefn Extension void hex_init (void)
Initializes the array mapping the current character set to Initializes the array mapping the current character set to
...@@ -327,7 +349,7 @@ default ASCII-based table will normally be used on ASCII systems. ...@@ -327,7 +349,7 @@ default ASCII-based table will normally be used on ASCII systems.
@end deftypefn @end deftypefn
@c hex.c:34 @c hex.c:39
@deftypefn Extension int hex_p (int @var{c}) @deftypefn Extension int hex_p (int @var{c})
Evaluates to non-zero if the given character is a valid hex character, Evaluates to non-zero if the given character is a valid hex character,
...@@ -336,7 +358,7 @@ or zero if it is not. Note that the value you pass will be cast to ...@@ -336,7 +358,7 @@ or zero if it is not. Note that the value you pass will be cast to
@end deftypefn @end deftypefn
@c hex.c:42 @c hex.c:47
@deftypefn Extension unsigned int hex_value (int @var{c}) @deftypefn Extension unsigned int hex_value (int @var{c})
Returns the numeric equivalent of the given character when interpreted Returns the numeric equivalent of the given character when interpreted
...@@ -382,6 +404,78 @@ struct qelem @{ ...@@ -382,6 +404,78 @@ struct qelem @{
@end deftypefn @end deftypefn
@c safe-ctype.c:45
@deffn Extension ISALPHA (@var{c})
@deffnx Extension ISALNUM (@var{c})
@deffnx Extension ISBLANK (@var{c})
@deffnx Extension ISCNTRL (@var{c})
@deffnx Extension ISDIGIT (@var{c})
@deffnx Extension ISGRAPH (@var{c})
@deffnx Extension ISLOWER (@var{c})
@deffnx Extension ISPRINT (@var{c})
@deffnx Extension ISPUNCT (@var{c})
@deffnx Extension ISSPACE (@var{c})
@deffnx Extension ISUPPER (@var{c})
@deffnx Extension ISXDIGIT (@var{c})
These twelve macros are defined by @file{safe-ctype.h}. Each has the
same meaning as the corresponding macro (with name in lowercase)
defined by the standard header @file{ctype.h}. For example,
@code{ISALPHA} returns true for alphabetic characters and false for
others. However, there are two differences between these macros and
those provided by @file{ctype.h}:
@itemize @bullet
@item These macros are guaranteed to have well-defined behavior for all
values representable by @code{signed char} and @code{unsigned char}, and
for @code{EOF}.
@item These macros ignore the current locale; they are true for these
fixed sets of characters:
@multitable {@code{XDIGIT}} {yada yada yada yada yada yada yada yada}
@item @code{ALPHA} @tab @kbd{A-Za-z}
@item @code{ALNUM} @tab @kbd{A-Za-z0-9}
@item @code{BLANK} @tab @kbd{space tab}
@item @code{CNTRL} @tab @code{!PRINT}
@item @code{DIGIT} @tab @kbd{0-9}
@item @code{GRAPH} @tab @code{ALNUM || PUNCT}
@item @code{LOWER} @tab @kbd{a-z}
@item @code{PRINT} @tab @code{GRAPH ||} @kbd{space}
@item @code{PUNCT} @tab @kbd{`~!@@#$%^&*()_-=+[@{]@}\|;:'",<.>/?}
@item @code{SPACE} @tab @kbd{space tab \n \r \f \v}
@item @code{UPPER} @tab @kbd{A-Z}
@item @code{XDIGIT} @tab @kbd{0-9A-Fa-f}
@end multitable
Note that, if the host character set is ASCII or a superset thereof,
all these macros will return false for all values of @code{char} outside
the range of 7-bit ASCII. In particular, both ISPRINT and ISCNTRL return
false for characters with numeric values from 128 to 255.
@end itemize
@end deffn
@c safe-ctype.c:94
@deffn Extension ISIDNUM (@var{c})
@deffnx Extension ISIDST (@var{c})
@deffnx Extension IS_VSPACE (@var{c})
@deffnx Extension IS_NVSPACE (@var{c})
@deffnx Extension IS_SPACE_OR_NUL (@var{c})
@deffnx Extension IS_ISOBASIC (@var{c})
These six macros are defined by @file{safe-ctype.h} and provide
additional character classes which are useful when doing lexical
analysis of C or similar languages. They are true for the following
sets of characters:
@multitable {@code{SPACE_OR_NUL}} {yada yada yada yada yada yada yada yada}
@item @code{IDNUM} @tab @kbd{A-Za-z0-9_}
@item @code{IDST} @tab @kbd{A-Za-z_}
@item @code{VSPACE} @tab @kbd{\r \n}
@item @code{NVSPACE} @tab @kbd{space tab \f \v \0}
@item @code{SPACE_OR_NUL} @tab @code{VSPACE || NVSPACE}
@item @code{ISOBASIC} @tab @code{VSPACE || NVSPACE || PRINT}
@end multitable
@end deffn
@c lbasename.c:23 @c lbasename.c:23
@deftypefn Replacement {const char*} lbasename (const char *@var{name}) @deftypefn Replacement {const char*} lbasename (const char *@var{name})
......
libiberty/hex.c
...@@ -19,6 +19,11 @@ Boston, MA 02111-1307, USA. */ ...@@ -19,6 +19,11 @@ Boston, MA 02111-1307, USA. */
#include <stdio.h> /* for EOF */ #include <stdio.h> /* for EOF */
#include "libiberty.h" #include "libiberty.h"
#include "safe-ctype.h" /* for HOST_CHARSET_ASCII */
#if EOF != -1
#error "hex.c requires EOF == -1"
#endif
/* /*
...@@ -62,9 +67,7 @@ systems. ...@@ -62,9 +67,7 @@ systems.
/* Are we ASCII? */ /* Are we ASCII? */
#if '\n' == 0x0A && ' ' == 0x20 && '0' == 0x30 \ #if HOST_CHARSET == HOST_CHARSET_ASCII
&& 'A' == 0x41 && 'a' == 0x61 && '!' == 0x21 \
&& EOF == -1
const unsigned char _hex_value[_hex_array_size] = const unsigned char _hex_value[_hex_array_size] =
{ {
......
libiberty/safe-ctype.c
...@@ -19,15 +19,100 @@ License along with libiberty; see the file COPYING.LIB. If ...@@ -19,15 +19,100 @@ License along with libiberty; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */ Boston, MA 02111-1307, USA. */
/* This is a compatible replacement of the standard C library's <ctype.h> /*
with the following properties:
@defvr Extension HOST_CHARSET
- Implements all isxxx() macros required by C99. This macro indicates the basic character set and encoding used by the
- Also implements some character classes useful when host: more precisely, the encoding used for character constants in
parsing C-like languages. preprocessor @samp{#if} statements (the C "execution character set").
- Does not change behavior depending on the current locale. It is defined by @file{safe-ctype.h}, and will be an integer constant
- Behaves properly for all values in the range of a signed or with one of the following values:
unsigned char. */
@ftable @code
@item HOST_CHARSET_UNKNOWN
The host character set is unknown - that is, not one of the next two
possibilities.
@item HOST_CHARSET_ASCII
The host character set is ASCII.
@item HOST_CHARSET_EBCDIC
The host character set is some variant of EBCDIC. (Only one of the
nineteen EBCDIC varying characters is tested; exercise caution.)
@end ftable
@end defvr
@deffn Extension ISALPHA (@var{c})
@deffnx Extension ISALNUM (@var{c})
@deffnx Extension ISBLANK (@var{c})
@deffnx Extension ISCNTRL (@var{c})
@deffnx Extension ISDIGIT (@var{c})
@deffnx Extension ISGRAPH (@var{c})
@deffnx Extension ISLOWER (@var{c})
@deffnx Extension ISPRINT (@var{c})
@deffnx Extension ISPUNCT (@var{c})
@deffnx Extension ISSPACE (@var{c})
@deffnx Extension ISUPPER (@var{c})
@deffnx Extension ISXDIGIT (@var{c})
These twelve macros are defined by @file{safe-ctype.h}. Each has the
same meaning as the corresponding macro (with name in lowercase)
defined by the standard header @file{ctype.h}. For example,
@code{ISALPHA} returns true for alphabetic characters and false for
others. However, there are two differences between these macros and
those provided by @file{ctype.h}:
@itemize @bullet
@item These macros are guaranteed to have well-defined behavior for all
values representable by @code{signed char} and @code{unsigned char}, and
for @code{EOF}.
@item These macros ignore the current locale; they are true for these
fixed sets of characters:
@multitable {@code{XDIGIT}} {yada yada yada yada yada yada yada yada}
@item @code{ALPHA} @tab @kbd{A-Za-z}
@item @code{ALNUM} @tab @kbd{A-Za-z0-9}
@item @code{BLANK} @tab @kbd{space tab}
@item @code{CNTRL} @tab @code{!PRINT}
@item @code{DIGIT} @tab @kbd{0-9}
@item @code{GRAPH} @tab @code{ALNUM || PUNCT}
@item @code{LOWER} @tab @kbd{a-z}
@item @code{PRINT} @tab @code{GRAPH ||} @kbd{space}
@item @code{PUNCT} @tab @kbd{`~!@@#$%^&*()_-=+[@{]@}\|;:'",<.>/?}
@item @code{SPACE} @tab @kbd{space tab \n \r \f \v}
@item @code{UPPER} @tab @kbd{A-Z}
@item @code{XDIGIT} @tab @kbd{0-9A-Fa-f}
@end multitable
Note that, if the host character set is ASCII or a superset thereof,
all these macros will return false for all values of @code{char} outside
the range of 7-bit ASCII. In particular, both ISPRINT and ISCNTRL return
false for characters with numeric values from 128 to 255.
@end itemize
@end deffn
@deffn Extension ISIDNUM (@var{c})
@deffnx Extension ISIDST (@var{c})
@deffnx Extension IS_VSPACE (@var{c})
@deffnx Extension IS_NVSPACE (@var{c})
@deffnx Extension IS_SPACE_OR_NUL (@var{c})
@deffnx Extension IS_ISOBASIC (@var{c})
These six macros are defined by @file{safe-ctype.h} and provide
additional character classes which are useful when doing lexical
analysis of C or similar languages. They are true for the following
sets of characters:
@multitable {@code{SPACE_OR_NUL}} {yada yada yada yada yada yada yada yada}
@item @code{IDNUM} @tab @kbd{A-Za-z0-9_}
@item @code{IDST} @tab @kbd{A-Za-z_}
@item @code{VSPACE} @tab @kbd{\r \n}
@item @code{NVSPACE} @tab @kbd{space tab \f \v \0}
@item @code{SPACE_OR_NUL} @tab @code{VSPACE || NVSPACE}
@item @code{ISOBASIC} @tab @code{VSPACE || NVSPACE || PRINT}
@end multitable
@end deffn
*/
#include "ansidecl.h" #include "ansidecl.h"
#include <safe-ctype.h> #include <safe-ctype.h>
...@@ -68,7 +153,7 @@ Boston, MA 02111-1307, USA. */ ...@@ -68,7 +153,7 @@ Boston, MA 02111-1307, USA. */
#define S (const unsigned short) (nv|sp|bl|pr) /* space */ #define S (const unsigned short) (nv|sp|bl|pr) /* space */
/* Are we ASCII? */ /* Are we ASCII? */
#if HOST_CHARSET == HC_ASCII #if HOST_CHARSET == HOST_CHARSET_ASCII
const unsigned short _sch_istable[256] = const unsigned short _sch_istable[256] =
{ {
...@@ -161,7 +246,7 @@ const unsigned char _sch_toupper[256] = ...@@ -161,7 +246,7 @@ const unsigned char _sch_toupper[256] =
}; };
#else #else
# if HOST_CHARSET == HC_EBCDIC # if HOST_CHARSET == HOST_CHARSET_EBCDIC
#error "FIXME: write tables for EBCDIC" #error "FIXME: write tables for EBCDIC"
# else # else
#error "Unrecognized host character set" #error "Unrecognized host character set"
......
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