tidy builtin cpp macros

[Richard Henderson]

These were added for libstdc++ support.  They are no longer used.


r~


        * c-common.c (cpp_define_data_format): Remove.
        (cb_register_builtins): Don't define __WCHAR_BIT__, __SHRT_BIT__,
        __INT_BIT__, __LONG_BIT__, __LONG_LONG_BIT__, __FLOAT_BIT__,
        __DOUBLE_BIT__, __LONG_DOUBLE_BIT__.
        * doc/cpp.texi: Don't document them either.
        (__SCHAR_MAX__, __SHRT_MAX__, __INT_MAX__, __LONG_MAX__,
        __LONG_LONG_MAX__): Document.
        (__TARGET_FLOAT_FORMAT__): Remove.

Index: c-common.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/c-common.c,v
retrieving revision 1.383
diff -u -p -r1.383 c-common.c
--- c-common.c	23 Sep 2002 09:22:12 -0000	1.383
+++ c-common.c	23 Sep 2002 11:31:15 -0000
@@ -783,7 +783,6 @@ static void builtin_define_with_hex_fp_v
 						      int, const char *,
 						      const char *));
 static void builtin_define_type_max PARAMS ((const char *, tree, int));
-static void cpp_define_data_format PARAMS ((cpp_reader *));
 static void builtin_define_type_precision PARAMS ((const char *, tree));
 static void builtin_define_float_constants PARAMS ((const char *,
 						    const char *, tree));
@@ -4701,44 +4700,6 @@ boolean_increment (code, arg)
   return val;
 }
 
-/* Define macros necessary to describe fundamental data type formats.  */
-static void
-cpp_define_data_format (pfile)
-    cpp_reader *pfile;
-{
-  const char *format;
-
-  /* Define supported floating-point format enumeration values.  */
-  cpp_define (pfile, "__UNKNOWN_FORMAT__=0");
-  cpp_define (pfile, "__IEEE_FORMAT__=1");
-  cpp_define (pfile, "__IBM_FORMAT__=2");
-  cpp_define (pfile, "__C4X_FORMAT__=3");
-  cpp_define (pfile, "__VAX_FORMAT__=4");
-  
-  switch (TARGET_FLOAT_FORMAT)
-    {
-    case UNKNOWN_FLOAT_FORMAT:
-      format = "__UNKNOWN_FORMAT__";
-      break;
-    case IEEE_FLOAT_FORMAT:
-      format = "__IEEE_FORMAT__";
-      break;
-    case VAX_FLOAT_FORMAT:
-      format = "__VAX_FORMAT__";
-      break;
-    case IBM_FLOAT_FORMAT:
-      format = "__IBM_FORMAT__";
-      break;
-    case C4X_FLOAT_FORMAT:
-      format = "__C4X_FORMAT__";
-      break;
-    default:
-      abort();
-    }
-
-  builtin_define_with_value ("__GCC_FLOAT_FORMAT__", format, 0);
-}
-
 /* Define NAME with value TYPE precision.  */
 static void
 builtin_define_type_precision (name, type)
@@ -4955,15 +4916,6 @@ cb_register_builtins (pfile)
   builtin_define_type_max ("__LONG_LONG_MAX__", long_long_integer_type_node, 2);
 
   builtin_define_type_precision ("__CHAR_BIT__", char_type_node);
-  builtin_define_type_precision ("__WCHAR_BIT__", wchar_type_node);
-  builtin_define_type_precision ("__SHRT_BIT__", short_integer_type_node);
-  builtin_define_type_precision ("__INT_BIT__", integer_type_node);
-  builtin_define_type_precision ("__LONG_BIT__", long_integer_type_node);
-  builtin_define_type_precision ("__LONG_LONG_BIT__",
-                                 long_long_integer_type_node);
-  builtin_define_type_precision ("__FLOAT_BIT__", float_type_node);
-  builtin_define_type_precision ("__DOUBLE_BIT__", double_type_node);
-  builtin_define_type_precision ("__LONG_DOUBLE_BIT__", long_double_type_node);
 
   /* float.h needs to know these.  */
 
@@ -5013,8 +4965,6 @@ cb_register_builtins (pfile)
   if (c_language == clk_cplusplus && TREE_UNSIGNED (wchar_type_node))
     cpp_define (pfile, "__WCHAR_UNSIGNED__");
 
-  cpp_define_data_format (pfile);
-  
   /* Make the choice of ObjC runtime visible to source code.  */
   if (flag_objc && flag_next_runtime)
     cpp_define (pfile, "__NEXT_RUNTIME__");
Index: doc/cpp.texi
===================================================================
RCS file: /cvs/gcc/gcc/gcc/doc/cpp.texi,v
retrieving revision 1.47
diff -u -p -r1.47 cpp.texi
--- doc/cpp.texi	21 Sep 2002 16:32:49 -0000	1.47
+++ doc/cpp.texi	23 Sep 2002 11:31:16 -0000
@@ -2007,20 +2007,21 @@ these macros directly; instead, include 
 the typedefs.
 
 @item __CHAR_BIT__
-@itemx __WCHAR_BIT__
-@itemx __SHRT_BIT__
-@itemx __INT_BIT__
-@itemx __LONG_BIT__
-@itemx __LONG_LONG_BIT__
-@itemx __FLOAT_BIT__
-@itemx __DOUBLE_BIT__
-@itemx __LONG_DOUBLE_BIT__
-These macros are defined to the number of bits used in the
-representation of the data types @code{char}, @code{wchar_t},
-@code{short}, @code{int}, @code{long}, @code{long long}, @code{float},
-@code{double} and @code{long double}.  They exist to make the standard
-header given numerical limits work correctly.  You should not use
-these macros directly; instead, include the appropriate headers.
+Defined to the number of bits used in the representation of the
+@code{char} data type.  It exists to make the standard header given
+numerical limits work correctly.  You should not use
+this macro directly; instead, include the appropriate headers.
+
+@item __SCHAR_MAX__
+@itemx __SHRT_MAX__
+@itemx __INT_MAX__
+@itemx __LONG_MAX__
+@itemx __LONG_LONG_MAX__
+Defined to the maximum value of the @code{signed char}, @code{signed short},
+@code{signed int}, @code{signed long}, and @code{signed long long} types
+respectively.  They exist to make the standard header given numerical limits
+work correctly.  You should not use these macros directly; instead, include
+the appropriate headers.
 
 @item __USING_SJLJ_EXCEPTIONS__
 This macro is defined, with value 1, if the compiler uses the old
@@ -2032,12 +2033,6 @@ This macro is defined, with value 1, if 
 (as in @option{-fnext-runtime}) is in use for Objective-C.  If the GNU
 runtime is used, this macro is not defined, so that you can use this
 macro to determine which runtime (NeXT or GNU) is being used.
-
-@item __TARGET_FLOAT_FORMAT__
-This macro is defined to describe the floating-point format used by the
-target.  It has value in the set comprised of:
-@code{__UNKNOWN_FORMAT__}, @code{__IEEE_FORMAT__},
-@code{__IBM_FORMAT__}, @code{__C4X_FORMAT__} and @code{__VAX_FORMAT__}.
 @end table
 
 @node System-specific Predefined Macros