/* CPP Library.
Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008,
- 2009 Free Software Foundation, Inc.
+ 2009, 2010, 2011 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
#include "internal.h"
#include "mkdeps.h"
#include "localedir.h"
+#include "filenames.h"
static void init_library (void);
static void mark_named_operators (cpp_reader *, int);
char cplusplus_comments;
char digraphs;
char uliterals;
+ char rliterals;
+ char user_literals;
};
static const struct lang_flags lang_defaults[] =
-{ /* 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
+{ /* c99 c++ xnum xid std // digr ulit rlit user_literals */
+ /* GNUC89 */ { 0, 0, 1, 0, 0, 1, 1, 0, 0, 0 },
+ /* GNUC99 */ { 1, 0, 1, 0, 0, 1, 1, 1, 1, 0 },
+ /* GNUC11 */ { 1, 0, 1, 0, 0, 1, 1, 1, 1, 0 },
+ /* STDC89 */ { 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 },
+ /* STDC94 */ { 0, 0, 0, 0, 1, 0, 1, 0, 0, 0 },
+ /* STDC99 */ { 1, 0, 1, 0, 1, 1, 1, 0, 0, 0 },
+ /* STDC11 */ { 1, 0, 1, 0, 1, 1, 1, 1, 0, 0 },
+ /* GNUCXX */ { 0, 1, 1, 0, 0, 1, 1, 0, 0, 0 },
+ /* CXX98 */ { 0, 1, 1, 0, 1, 1, 1, 0, 0, 0 },
+ /* GNUCXX11 */ { 1, 1, 1, 0, 0, 1, 1, 1, 1, 1 },
+ /* CXX11 */ { 1, 1, 1, 0, 1, 1, 1, 1, 1, 1 },
+ /* ASM */ { 0, 0, 1, 0, 0, 1, 0, 0, 0, 0 }
+ /* xid should be 1 for GNUC99, STDC99, GNUCXX, CXX98, GNUCXX11, and
+ CXX11 when no longer experimental (when all uses of identifiers
in the compiler have been audited for correct handling of
extended identifiers). */
};
CPP_OPTION (pfile, cplusplus_comments) = l->cplusplus_comments;
CPP_OPTION (pfile, digraphs) = l->digraphs;
CPP_OPTION (pfile, uliterals) = l->uliterals;
+ CPP_OPTION (pfile, rliterals) = l->rliterals;
+ CPP_OPTION (pfile, user_literals) = l->user_literals;
}
/* Initialize library global state. */
{
initialized = 1;
+ _cpp_init_lexer ();
+
/* Set up the trigraph map. This doesn't need to do anything if
we were compiled with a compiler that supports C99 designated
initializers. */
init_library ();
pfile = XCNEW (cpp_reader);
+ memset (&pfile->base_context, 0, sizeof (pfile->base_context));
cpp_set_lang (pfile, lang);
CPP_OPTION (pfile, warn_multichar) = 1;
CPP_OPTION (pfile, discard_comments) = 1;
CPP_OPTION (pfile, discard_comments_in_macro_exp) = 1;
- CPP_OPTION (pfile, show_column) = 1;
CPP_OPTION (pfile, tabstop) = 8;
CPP_OPTION (pfile, operator_names) = 1;
CPP_OPTION (pfile, warn_trigraphs) = 2;
CPP_OPTION (pfile, warn_endif_labels) = 1;
- CPP_OPTION (pfile, warn_deprecated) = 1;
- CPP_OPTION (pfile, warn_long_long) = 0;
+ CPP_OPTION (pfile, cpp_warn_deprecated) = 1;
+ CPP_OPTION (pfile, cpp_warn_long_long) = 0;
CPP_OPTION (pfile, dollars_in_ident) = 1;
CPP_OPTION (pfile, warn_dollars) = 1;
CPP_OPTION (pfile, warn_variadic_macros) = 1;
/* Initialize the base context. */
pfile->context = &pfile->base_context;
- pfile->base_context.macro = 0;
+ pfile->base_context.c.macro = 0;
pfile->base_context.prev = pfile->base_context.next = 0;
/* Aligned and unaligned storage. */
pfile->a_buff = _cpp_get_buff (pfile, 0);
pfile->u_buff = _cpp_get_buff (pfile, 0);
+ /* Initialize table for push_macro/pop_macro. */
+ pfile->pushed_macros = 0;
+
+ /* Do not force token locations by default. */
+ pfile->forced_token_location_p = NULL;
+
/* The expression parser stack. */
_cpp_expand_op_stack (pfile);
cpp_destroy (cpp_reader *pfile)
{
cpp_context *context, *contextn;
+ struct def_pragma_macro *pmacro;
tokenrun *run, *runn;
int i;
while (CPP_BUFFER (pfile) != NULL)
_cpp_pop_buffer (pfile);
- if (pfile->out.base)
- free (pfile->out.base);
+ free (pfile->out.base);
if (pfile->macro_buffer)
{
free (pfile->comments.entries);
}
+ if (pfile->pushed_macros)
+ {
+ do
+ {
+ pmacro = pfile->pushed_macros;
+ pfile->pushed_macros = pmacro->next;
+ free (pmacro->name);
+ free (pmacro);
+ }
+ while (pfile->pushed_macros);
+ }
free (pfile);
}
"builtin" macros: these are handled by builtin_macro() in
macro.c. Builtin is somewhat of a misnomer -- the property of
interest is that these macros require special code to compute their
- expansions. The value is a "builtin_type" enumerator.
+ expansions. The value is a "cpp_builtin_type" enumerator.
operator_array holds the C++ named operators. These are keywords
which act as aliases for punctuators. In C++, they cannot be
_cpp_define_builtin (pfile, "__STDC__ 1");
if (CPP_OPTION (pfile, cplusplus))
- _cpp_define_builtin (pfile, "__cplusplus 1");
+ {
+ if (CPP_OPTION (pfile, lang) == CLK_CXX11
+ || CPP_OPTION (pfile, lang) == CLK_GNUCXX11)
+ _cpp_define_builtin (pfile, "__cplusplus 201103L");
+ else
+ _cpp_define_builtin (pfile, "__cplusplus 199711L");
+ }
else if (CPP_OPTION (pfile, lang) == CLK_ASM)
_cpp_define_builtin (pfile, "__ASSEMBLER__ 1");
else if (CPP_OPTION (pfile, lang) == CLK_STDC94)
_cpp_define_builtin (pfile, "__STDC_VERSION__ 199409L");
+ else if (CPP_OPTION (pfile, lang) == CLK_STDC11
+ || CPP_OPTION (pfile, lang) == CLK_GNUC11)
+ _cpp_define_builtin (pfile, "__STDC_VERSION__ 201112L");
else if (CPP_OPTION (pfile, c99))
_cpp_define_builtin (pfile, "__STDC_VERSION__ 199901L");
+ if (CPP_OPTION (pfile, uliterals)
+ && !CPP_OPTION (pfile, cplusplus))
+ {
+ _cpp_define_builtin (pfile, "__STDC_UTF_16__ 1");
+ _cpp_define_builtin (pfile, "__STDC_UTF_32__ 1");
+ }
+
if (hosted)
_cpp_define_builtin (pfile, "__STDC_HOSTED__ 1");
else
if (CPP_OPTION (pfile, preprocessed))
{
read_original_filename (pfile);
- fname = pfile->line_table->maps[pfile->line_table->used-1].to_file;
+ fname =
+ ORDINARY_MAP_FILE_NAME
+ ((LINEMAPS_LAST_ORDINARY_MAP (pfile->line_table)));
}
return fname;
}
pfile->state.in_directive = 0;
/* If it's a #line directive, handle it. */
- if (token1->type == CPP_NUMBER)
+ if (token1->type == CPP_NUMBER
+ && _cpp_handle_directive (pfile, token->flags & PREV_WHITE))
{
- _cpp_handle_directive (pfile, token->flags & PREV_WHITE);
read_original_directory (pfile);
return;
}
if (token->type != CPP_STRING
|| ! (token->val.str.len >= 5
- && token->val.str.text[token->val.str.len-2] == '/'
- && token->val.str.text[token->val.str.len-3] == '/'))
+ && IS_DIR_SEPARATOR (token->val.str.text[token->val.str.len-2])
+ && IS_DIR_SEPARATOR (token->val.str.text[token->val.str.len-3])))
{
_cpp_backup_tokens (pfile, 3);
return;
{
/* -Wtraditional is not useful in C++ mode. */
if (CPP_OPTION (pfile, cplusplus))
- CPP_OPTION (pfile, warn_traditional) = 0;
+ CPP_OPTION (pfile, cpp_warn_traditional) = 0;
/* Permanently disable macro expansion if we are rescanning
preprocessed text. Read preprocesed source in ISO mode. */
{
CPP_OPTION (pfile, cplusplus_comments) = 0;
- /* Traditional CPP does not accurately track column information. */
- CPP_OPTION (pfile, show_column) = 0;
CPP_OPTION (pfile, trigraphs) = 0;
CPP_OPTION (pfile, warn_trigraphs) = 0;
}
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