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author | Paolo Bonzini <bonzini@gnu.org> | 2004-05-24 10:50:45 +0000 |
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committer | Paolo Bonzini <bonzini@gcc.gnu.org> | 2004-05-24 10:50:45 +0000 |
commit | 4f4e53dd8517c0b2cbe36f0cf866f9f5ebe294e9 (patch) | |
tree | 5c68861b20c202df9c26dd8ebfaf794153accea0 /libcpp/identifiers.c | |
parent | b1c5b5a09b545dabdd4a10d67f31d93779af95db (diff) | |
download | gcc-4f4e53dd8517c0b2cbe36f0cf866f9f5ebe294e9.zip gcc-4f4e53dd8517c0b2cbe36f0cf866f9f5ebe294e9.tar.gz gcc-4f4e53dd8517c0b2cbe36f0cf866f9f5ebe294e9.tar.bz2 |
Makefile.def (host_modules): add libcpp.
ChangeLog:
2004-05-23 Paolo Bonzini <bonzini@gnu.org>
* Makefile.def (host_modules): add libcpp.
* Makefile.tpl: Add dependencies on and for libcpp.
* Makefile.in: Regenerate.
* configure.in: Add libcpp host module.
* configure: Regenerate.
config/ChangeLog:
2004-05-23 Paolo Bonzini <bonzini@gnu.org>
* acx.m4 (ACX_HEADER_STDBOOL, ACX_HEADER_STRING):
From gcc.
gcc/ChangeLog:
2004-05-23 Paolo Bonzini <bonzini@gnu.org>
Move libcpp to the toplevel.
* Makefile.in: Remove references to libcpp files,
use CPPLIBS instead of libcpp.a. Define SYMTAB_H
and change hashtable.h to that.
* aclocal.m4 (gcc_AC_HEADER_STDBOOL,
gcc_AC_HEADER_STRING, gcc_AC_C__BOOL): Remove.
* configure.ac (gcc_AC_C__BOOL, HAVE_UCHAR): Remove tests.
* configure: Regenerate.
* config.in: Regenerate.
* c-ppoutput.c: Include ../libcpp/internal.h instead of cpphash.h.
* cppcharset.c: Removed.
* cpperror.c: Removed.
* cppexp.c: Removed.
* cppfiles.c: Removed.
* cpphash.c: Removed.
* cpphash.h: Removed.
* cppinit.c: Removed.
* cpplex.c: Removed.
* cpplib.c: Removed.
* cpplib.h: Removed.
* cppmacro.c: Removed.
* cpppch.c: Removed.
* cpptrad.c: Removed.
* cppucnid.h: Removed.
* cppucnid.pl: Removed.
* cppucnid.tab: Removed.
* hashtable.c: Removed.
* hashtable.h: Removed.
* line-map.c: Removed.
* line-map.h: Removed.
* mkdeps.c: Removed.
* mkdeps.h: Removed.
* stringpool.h: Include symtab.h instead of hashtable.h.
* tree.h: Include symtab.h instead of hashtable.h.
* system.h (O_NONBLOCK, O_NOCTTY): Do not define.
gcc/cp/ChangeLog:
2004-05-23 Paolo Bonzini <bonzini@gnu.org>
* Make-lang.in: No need to specify $(LIBCPP).
gcc/java/ChangeLog:
2004-05-23 Paolo Bonzini <bonzini@gnu.org>
* Make-lang.in: Link in $(LIBCPP) instead of mkdeps.o.
libcpp/ChangeLog:
2004-05-23 Paolo Bonzini <bonzini@gnu.org>
Moved libcpp from the gcc subdirectory to the toplevel.
* Makefile.am: New file.
* Makefile.in: Regenerate.
* configure.ac: New file.
* configure: Regenerate.
* config.in: Regenerate.
* charset.c: Moved from gcc/cppcharset.c. Add note about
brokenness of input charset detection. Adjust for change
in name of cppucnid.h.
* errors.c: Moved from gcc/cpperror.c. Do not include intl.h.
* expr.c: Moved from gcc/cppexp.c.
* files.c: Moved from gcc/cppfiles.c. Do not include intl.h.
Remove #define of O_BINARY, it is in system.h.
* identifiers.c: Moved from gcc/cpphash.c.
* internal.h: Moved from gcc/cpphash.h. Change header
guard name. All other files adjusted to match name change.
* init.c: Moved from gcc/cppinit.c.
(init_library) [ENABLE_NLS]: Call bindtextdomain.
* lex.c: Moved from gcc/cpplex.c.
* directives.c: Moved from gcc/cpplib.c.
* macro.c: Moved from gcc/cppmacro.c.
* pch.c: Moved from gcc/cpppch.c. Do not include intl.h.
* traditional.c: Moved from gcc/cpptrad.c.
* ucnid.h: Moved from gcc/cppucnid.h. Change header
guard name.
* ucnid.pl: Moved from gcc/cppucnid.pl.
* ucnid.tab: Moved from gcc/cppucnid.tab. Change header
guard name.
* symtab.c: Moved from gcc/hashtable.c.
* line-map.c: Moved from gcc. Do not include intl.h.
* mkdeps.c: Moved from gcc.
* system.h: New file.
libcpp/include/ChangeLog:
2004-05-23 Paolo Bonzini <bonzini@gnu.org>
* cpplib.h: Moved from gcc. Change header guard name.
* line-map.h: Moved from gcc. Change header guard name.
* mkdeps.h: Moved from gcc. Change header guard name.
* symtab.h: Moved from gcc/hashtable.h. Change header
guard name.
libcpp/po/ChangeLog:
2004-05-23 Paolo Bonzini <bonzini@gnu.org>
* be.po: Extracted from gcc/po/be.po.
* ca.po: Extracted from gcc/po/ca.po.
* da.po: Extracted from gcc/po/da.po.
* de.po: Extracted from gcc/po/de.po.
* el.po: Extracted from gcc/po/el.po.
* es.po: Extracted from gcc/po/es.po.
* fr.po: Extracted from gcc/po/fr.po.
* ja.po: Extracted from gcc/po/ja.po.
* nl.po: Extracted from gcc/po/nl.po.
* sv.po: Extracted from gcc/po/sv.po.
* tr.po: Extracted from gcc/po/tr.po.
From-SVN: r82199
Diffstat (limited to 'libcpp/identifiers.c')
-rw-r--r-- | libcpp/identifiers.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/libcpp/identifiers.c b/libcpp/identifiers.c new file mode 100644 index 0000000..a6b35b4 --- /dev/null +++ b/libcpp/identifiers.c @@ -0,0 +1,118 @@ +/* Hash tables for the CPP library. + Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1998, + 1999, 2000, 2001, 2002 Free Software Foundation, Inc. + Written by Per Bothner, 1994. + 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 +later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + In other words, you are welcome to use, share and improve this program. + You are forbidden to forbid anyone else to use, share and improve + what you give them. Help stamp out software-hoarding! */ + +#include "config.h" +#include "system.h" +#include "cpplib.h" +#include "internal.h" + +static cpp_hashnode *alloc_node (hash_table *); + +/* Return an identifier node for hashtable.c. Used by cpplib except + when integrated with the C front ends. */ +static cpp_hashnode * +alloc_node (hash_table *table) +{ + cpp_hashnode *node; + + node = obstack_alloc (&table->pfile->hash_ob, sizeof (cpp_hashnode)); + memset (node, 0, sizeof (cpp_hashnode)); + return node; +} + +/* Set up the identifier hash table. Use TABLE if non-null, otherwise + create our own. */ +void +_cpp_init_hashtable (cpp_reader *pfile, hash_table *table) +{ + struct spec_nodes *s; + + if (table == NULL) + { + pfile->our_hashtable = 1; + table = ht_create (13); /* 8K (=2^13) entries. */ + table->alloc_node = (hashnode (*) (hash_table *)) alloc_node; + + _obstack_begin (&pfile->hash_ob, 0, 0, + (void *(*) (long)) xmalloc, + (void (*) (void *)) free); + } + + table->pfile = pfile; + pfile->hash_table = table; + + /* Now we can initialize things that use the hash table. */ + _cpp_init_directives (pfile); + _cpp_init_internal_pragmas (pfile); + + s = &pfile->spec_nodes; + s->n_defined = cpp_lookup (pfile, DSC("defined")); + s->n_true = cpp_lookup (pfile, DSC("true")); + s->n_false = cpp_lookup (pfile, DSC("false")); + s->n__VA_ARGS__ = cpp_lookup (pfile, DSC("__VA_ARGS__")); + s->n__VA_ARGS__->flags |= NODE_DIAGNOSTIC; +} + +/* Tear down the identifier hash table. */ +void +_cpp_destroy_hashtable (cpp_reader *pfile) +{ + if (pfile->our_hashtable) + { + ht_destroy (pfile->hash_table); + obstack_free (&pfile->hash_ob, 0); + } +} + +/* Returns the hash entry for the STR of length LEN, creating one + if necessary. */ +cpp_hashnode * +cpp_lookup (cpp_reader *pfile, const unsigned char *str, unsigned int len) +{ + /* ht_lookup cannot return NULL. */ + return CPP_HASHNODE (ht_lookup (pfile->hash_table, str, len, HT_ALLOC)); +} + +/* Determine whether the str STR, of length LEN, is a defined macro. */ +int +cpp_defined (cpp_reader *pfile, const unsigned char *str, int len) +{ + cpp_hashnode *node; + + node = CPP_HASHNODE (ht_lookup (pfile->hash_table, str, len, HT_NO_INSERT)); + + /* If it's of type NT_MACRO, it cannot be poisoned. */ + return node && node->type == NT_MACRO; +} + +/* For all nodes in the hashtable, callback CB with parameters PFILE, + the node, and V. */ +void +cpp_forall_identifiers (cpp_reader *pfile, cpp_cb cb, void *v) +{ + /* We don't need a proxy since the hash table's identifier comes + first in cpp_hashnode. */ + ht_forall (pfile->hash_table, (ht_cb) cb, v); +} |