85 lines
2.8 KiB
Diff
85 lines
2.8 KiB
Diff
|
2006-08-16 Jakub Jelinek <jakub@redhat.com>
|
||
|
|
|
||
|
|
PR preprocessor/28709
|
||
|
|
* macro.c (paste_tokens): Do error reporting here, use BUF with the
|
||
|
|
spelled LHS token as opposed to spelling it again.
|
||
|
|
(paste_all_tokens): Don't report errors here, just break on failure.
|
||
|
|
|
||
|
|
* gcc.dg/cpp/paste14.c: New test.
|
||
|
|
|
||
|
|
--- libcpp/macro.c.jj 2006-06-09 23:07:54.000000000 +0200
|
||
|
|
+++ libcpp/macro.c 2006-08-16 17:30:17.000000000 +0200
|
||
|
|
@@ -430,15 +430,14 @@ stringify_arg (cpp_reader *pfile, macro_
|
||
|
|
static bool
|
||
|
|
paste_tokens (cpp_reader *pfile, const cpp_token **plhs, const cpp_token *rhs)
|
||
|
|
{
|
||
|
|
- unsigned char *buf, *end;
|
||
|
|
+ unsigned char *buf, *end, *lhsend;
|
||
|
|
const cpp_token *lhs;
|
||
|
|
unsigned int len;
|
||
|
|
- bool valid;
|
||
|
|
|
||
|
|
lhs = *plhs;
|
||
|
|
len = cpp_token_len (lhs) + cpp_token_len (rhs) + 1;
|
||
|
|
buf = (unsigned char *) alloca (len);
|
||
|
|
- end = cpp_spell_token (pfile, lhs, buf, false);
|
||
|
|
+ end = lhsend = cpp_spell_token (pfile, lhs, buf, false);
|
||
|
|
|
||
|
|
/* Avoid comment headers, since they are still processed in stage 3.
|
||
|
|
It is simpler to insert a space here, rather than modifying the
|
||
|
|
@@ -455,10 +454,22 @@ paste_tokens (cpp_reader *pfile, const c
|
||
|
|
/* Set pfile->cur_token as required by _cpp_lex_direct. */
|
||
|
|
pfile->cur_token = _cpp_temp_token (pfile);
|
||
|
|
*plhs = _cpp_lex_direct (pfile);
|
||
|
|
- valid = pfile->buffer->cur == pfile->buffer->rlimit;
|
||
|
|
- _cpp_pop_buffer (pfile);
|
||
|
|
+ if (pfile->buffer->cur != pfile->buffer->rlimit)
|
||
|
|
+ {
|
||
|
|
+ _cpp_pop_buffer (pfile);
|
||
|
|
+ _cpp_backup_tokens (pfile, 1);
|
||
|
|
+ *lhsend = '\0';
|
||
|
|
|
||
|
|
- return valid;
|
||
|
|
+ /* Mandatory error for all apart from assembler. */
|
||
|
|
+ if (CPP_OPTION (pfile, lang) != CLK_ASM)
|
||
|
|
+ cpp_error (pfile, CPP_DL_ERROR,
|
||
|
|
+ "pasting \"%s\" and \"%s\" does not give a valid preprocessing token",
|
||
|
|
+ buf, cpp_token_as_text (pfile, rhs));
|
||
|
|
+ return false;
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ _cpp_pop_buffer (pfile);
|
||
|
|
+ return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Handles an arbitrarily long sequence of ## operators, with initial
|
||
|
|
@@ -490,17 +501,7 @@ paste_all_tokens (cpp_reader *pfile, con
|
||
|
|
abort ();
|
||
|
|
|
||
|
|
if (!paste_tokens (pfile, &lhs, rhs))
|
||
|
|
- {
|
||
|
|
- _cpp_backup_tokens (pfile, 1);
|
||
|
|
-
|
||
|
|
- /* Mandatory error for all apart from assembler. */
|
||
|
|
- if (CPP_OPTION (pfile, lang) != CLK_ASM)
|
||
|
|
- cpp_error (pfile, CPP_DL_ERROR,
|
||
|
|
- "pasting \"%s\" and \"%s\" does not give a valid preprocessing token",
|
||
|
|
- cpp_token_as_text (pfile, lhs),
|
||
|
|
- cpp_token_as_text (pfile, rhs));
|
||
|
|
- break;
|
||
|
|
- }
|
||
|
|
+ break;
|
||
|
|
}
|
||
|
|
while (rhs->flags & PASTE_LEFT);
|
||
|
|
|
||
|
|
--- gcc/testsuite/gcc.dg/cpp/paste14.c.jj 2006-08-16 16:51:45.000000000 +0200
|
||
|
|
+++ gcc/testsuite/gcc.dg/cpp/paste14.c 2006-08-16 16:53:30.000000000 +0200
|
||
|
|
@@ -0,0 +1,7 @@
|
||
|
|
+/* PR preprocessor/28709 */
|
||
|
|
+/* { dg-do preprocess } */
|
||
|
|
+
|
||
|
|
+#define foo - ## >>
|
||
|
|
+foo /* { dg-error "pasting \"-\" and \">>\"" } */
|
||
|
|
+#define bar = ## ==
|
||
|
|
+bar /* { dg-error "pasting \"=\" and \"==\"" } */
|