/* CPP Library.
Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2009
+ Free Software Foundation, Inc.
Contributed by Per Bothner, 1994-95.
Based on CCCP program by Paul Rubin, June 1986
Adapted to ANSI C, Richard Stallman, Jan 1987
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
-Free Software Foundation; either version 2, or (at your option) any
+Free Software Foundation; either version 3, or (at your option) any
later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+along with this program; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
char std;
char cplusplus_comments;
char digraphs;
+ char uliterals;
};
static const struct lang_flags lang_defaults[] =
-{ /* c99 c++ xnum xid std // digr */
- /* GNUC89 */ { 0, 0, 1, 0, 0, 1, 1 },
- /* GNUC99 */ { 1, 0, 1, 0, 0, 1, 1 },
- /* STDC89 */ { 0, 0, 0, 0, 1, 0, 0 },
- /* STDC94 */ { 0, 0, 0, 0, 1, 0, 1 },
- /* STDC99 */ { 1, 0, 1, 0, 1, 1, 1 },
- /* GNUCXX */ { 0, 1, 1, 0, 0, 1, 1 },
- /* CXX98 */ { 0, 1, 1, 0, 1, 1, 1 },
- /* GNUCXX0X */ { 1, 1, 1, 0, 0, 1, 1 },
- /* CXX0X */ { 1, 1, 1, 0, 1, 1, 1 },
- /* ASM */ { 0, 0, 1, 0, 0, 1, 0 }
+{ /* c99 c++ xnum xid std // digr ulit */
+ /* GNUC89 */ { 0, 0, 1, 0, 0, 1, 1, 0 },
+ /* GNUC99 */ { 1, 0, 1, 0, 0, 1, 1, 1 },
+ /* STDC89 */ { 0, 0, 0, 0, 1, 0, 0, 0 },
+ /* STDC94 */ { 0, 0, 0, 0, 1, 0, 1, 0 },
+ /* STDC99 */ { 1, 0, 1, 0, 1, 1, 1, 0 },
+ /* GNUCXX */ { 0, 1, 1, 0, 0, 1, 1, 0 },
+ /* CXX98 */ { 0, 1, 1, 0, 1, 1, 1, 0 },
+ /* GNUCXX0X */ { 1, 1, 1, 0, 0, 1, 1, 1 },
+ /* CXX0X */ { 1, 1, 1, 0, 1, 1, 1, 1 },
+ /* ASM */ { 0, 0, 1, 0, 0, 1, 0, 0 }
/* xid should be 1 for GNUC99, STDC99, GNUCXX, CXX98, GNUCXX0X, and
CXX0X when no longer experimental (when all uses of identifiers
in the compiler have been audited for correct handling of
CPP_OPTION (pfile, trigraphs) = l->std;
CPP_OPTION (pfile, cplusplus_comments) = l->cplusplus_comments;
CPP_OPTION (pfile, digraphs) = l->digraphs;
+ CPP_OPTION (pfile, uliterals) = l->uliterals;
}
/* Initialize library global state. */
CPP_OPTION (pfile, dollars_in_ident) = 1;
CPP_OPTION (pfile, warn_dollars) = 1;
CPP_OPTION (pfile, warn_variadic_macros) = 1;
+ CPP_OPTION (pfile, warn_builtin_macro_redefined) = 1;
CPP_OPTION (pfile, warn_normalize) = normalized_C;
/* Default CPP arithmetic to something sensible for the host for the
{
cpp_context *context, *contextn;
tokenrun *run, *runn;
+ int i;
free (pfile->op_stack);
free (context);
}
+ if (pfile->comments.entries)
+ {
+ for (i = 0; i < pfile->comments.count; i++)
+ free (pfile->comments.entries[i].comment);
+
+ free (pfile->comments.entries);
+ }
+
free (pfile);
}
altered through #define, and #if recognizes them as operators. In
C, these are not entered into the hash table at all (but see
<iso646.h>). The value is a token-type enumerator. */
-struct builtin
+struct builtin_macro
{
- const uchar *name;
- unsigned short len;
- unsigned short value;
+ const uchar *const name;
+ const unsigned short len;
+ const unsigned short value;
+ const bool always_warn_if_redefined;
};
-#define B(n, t) { DSC(n), t }
-static const struct builtin builtin_array[] =
+#define B(n, t, f) { DSC(n), t, f }
+static const struct builtin_macro builtin_array[] =
{
- B("__TIMESTAMP__", BT_TIMESTAMP),
- B("__TIME__", BT_TIME),
- B("__DATE__", BT_DATE),
- B("__FILE__", BT_FILE),
- B("__BASE_FILE__", BT_BASE_FILE),
- B("__LINE__", BT_SPECLINE),
- B("__INCLUDE_LEVEL__", BT_INCLUDE_LEVEL),
- B("__COUNTER__", BT_COUNTER),
+ B("__TIMESTAMP__", BT_TIMESTAMP, false),
+ B("__TIME__", BT_TIME, false),
+ B("__DATE__", BT_DATE, false),
+ B("__FILE__", BT_FILE, false),
+ B("__BASE_FILE__", BT_BASE_FILE, false),
+ B("__LINE__", BT_SPECLINE, true),
+ B("__INCLUDE_LEVEL__", BT_INCLUDE_LEVEL, true),
+ B("__COUNTER__", BT_COUNTER, true),
/* Keep builtins not used for -traditional-cpp at the end, and
update init_builtins() if any more are added. */
- B("_Pragma", BT_PRAGMA),
- B("__STDC__", BT_STDC),
+ B("_Pragma", BT_PRAGMA, true),
+ B("__STDC__", BT_STDC, true),
};
+#undef B
-static const struct builtin operator_array[] =
+struct builtin_operator
+{
+ const uchar *const name;
+ const unsigned short len;
+ const unsigned short value;
+};
+
+#define B(n, t) { DSC(n), t }
+static const struct builtin_operator operator_array[] =
{
B("and", CPP_AND_AND),
B("and_eq", CPP_AND_EQ),
static void
mark_named_operators (cpp_reader *pfile)
{
- const struct builtin *b;
+ const struct builtin_operator *b;
for (b = operator_array;
b < (operator_array + ARRAY_SIZE (operator_array));
void
cpp_init_special_builtins (cpp_reader *pfile)
{
- const struct builtin *b;
+ const struct builtin_macro *b;
size_t n = ARRAY_SIZE (builtin_array);
if (CPP_OPTION (pfile, traditional))
{
cpp_hashnode *hp = cpp_lookup (pfile, b->name, b->len);
hp->type = NT_MACRO;
- hp->flags |= NODE_BUILTIN | NODE_WARN;
+ hp->flags |= NODE_BUILTIN;
+ if (b->always_warn_if_redefined
+ || CPP_OPTION (pfile, warn_builtin_macro_redefined))
+ hp->flags |= NODE_WARN;
hp->value.builtin = (enum builtin_type) b->value;
}
}
projects / fw / sdcc / blobdiff