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re PR c++/18075 (#pragma implementation broken in presence of #pragma ident)

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PR 18075
	* directives.c (do_pragma): Do not defer pragmas which are unknown.
	(cpp_handle_deferred_pragma): Add cast to silence warning.

From-SVN: r89693
This commit is contained in:
Zack Weinberg 2004-10-27 17:29:29 +00:00 • committed by Zack Weinberg
parent 121260258c
commit 3da3d587c5
2 changed files with 38 additions and 28 deletions
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6
libcpp/ChangeLog
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@ -1,3 +1,9 @@
2004-10-27 Zack Weinberg <zack@codesourcery.com>
PR 18075
* directives.c (do_pragma): Do not defer pragmas which are unknown.
(cpp_handle_deferred_pragma): Add cast to silence warning.
2004-10-14 Joseph S. Myers <jsm@polyomino.org.uk> 2004-10-14 Joseph S. Myers <jsm@polyomino.org.uk>
* errors.c (_cpp_begin_message): Print "error: " for errors. * errors.c (_cpp_begin_message): Print "error: " for errors.

60
libcpp/directives.c
View file

@ -1167,37 +1167,41 @@ do_pragma (cpp_reader *pfile)
} }
} }
if (p && (p->is_internal || !CPP_OPTION (pfile, defer_pragmas))) if (p)
{ {
/* Since the handler below doesn't get the line number, that it if (p->is_internal || !CPP_OPTION (pfile, defer_pragmas))
might need for diagnostics, make sure it has the right {
numbers in place. */ /* Since the handler below doesn't get the line number, that it
if (pfile->cb.line_change) might need for diagnostics, make sure it has the right
(*pfile->cb.line_change) (pfile, pragma_token, false); numbers in place. */
(*p->u.handler) (pfile); if (pfile->cb.line_change)
} (*pfile->cb.line_change) (pfile, pragma_token, false);
else if (CPP_OPTION (pfile, defer_pragmas)) (*p->u.handler) (pfile);
{ }
/* Squirrel away the pragma text. Pragmas are newline-terminated. */ else
const uchar *line_end; {
uchar *s; /* Squirrel away the pragma text. Pragmas are
cpp_string body; newline-terminated. */
cpp_token *ptok; const uchar *line_end;
uchar *s;
cpp_string body;
cpp_token *ptok;
line_end = ustrchr (line_start, '\n'); line_end = ustrchr (line_start, '\n');
body.len = (line_end - line_start) + 1; body.len = (line_end - line_start) + 1;
s = _cpp_unaligned_alloc (pfile, body.len + 1); s = _cpp_unaligned_alloc (pfile, body.len + 1);
memcpy (s, line_start, body.len); memcpy (s, line_start, body.len);
s[body.len] = '\0'; s[body.len] = '\0';
body.text = s; body.text = s;
/* Create a CPP_PRAGMA token. */ /* Create a CPP_PRAGMA token. */
ptok = &pfile->directive_result; ptok = &pfile->directive_result;
ptok->src_loc = pragma_token->src_loc; ptok->src_loc = pragma_token->src_loc;
ptok->type = CPP_PRAGMA; ptok->type = CPP_PRAGMA;
ptok->flags = pragma_token->flags | NO_EXPAND; ptok->flags = pragma_token->flags | NO_EXPAND;
ptok->val.str = body; ptok->val.str = body;
}
} }
else if (pfile->cb.def_pragma) else if (pfile->cb.def_pragma)
{ {
@ -1428,7 +1432,7 @@ cpp_handle_deferred_pragma (cpp_reader *pfile, const cpp_string *s)
pfile->cb.line_change = NULL; pfile->cb.line_change = NULL;
CPP_OPTION (pfile, defer_pragmas) = false; CPP_OPTION (pfile, defer_pragmas) = false;
run_directive (pfile, T_PRAGMA, s->text, s->len); run_directive (pfile, T_PRAGMA, (const char *)s->text, s->len);
XDELETE (pfile->context); XDELETE (pfile->context);
pfile->context = saved_context; pfile->context = saved_context;