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authorNathanael Nerode <neroden@gcc.gnu.org>2003-11-19 18:48:53 +0000
committerNathanael Nerode <neroden@gcc.gnu.org>2003-11-19 18:48:53 +0000
commitdd2cc6dc8f4d3cad4affbbe5a52f8fc27ba09a61 (patch)
tree9d929780fb0ff894cb0d344e4982b7cfd958f43c /gcc
parent09c557200827e64caca503b1b31c3e74fb225dc8 (diff)
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cpptrad.c (_cpp_scan_out_logical_line): Improve test for whether directive begins at the beginning of a line.
* cpptrad.c (_cpp_scan_out_logical_line): Improve test for whether directive begins at the beginning of a line. (testsuite) * gcc.dg/cpp/trad/xwin1.c: New test case. From-SVN: r73740
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/cpptrad.c6
-rw-r--r--gcc/testsuite/ChangeLog4
-rw-r--r--gcc/testsuite/gcc.dg/cpp/trad/xwin1.c13
4 files changed, 27 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 932a06b..0b4e287 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2003-11-19 Nathanael Nerode <neroden@gcc.gnu.org>
+
+ * cpptrad.c (_cpp_scan_out_logical_line): Improve test for
+ whether directive begins at the beginning of a line.
+
2003-11-19 Richard Sandiford <rsandifo@redhat.com>
* config/frv/frv.c (frv_init_libfuncs): Correct ufix_optab entries.
diff --git a/gcc/cpptrad.c b/gcc/cpptrad.c
index 0f98a8a..6da19cc 100644
--- a/gcc/cpptrad.c
+++ b/gcc/cpptrad.c
@@ -350,6 +350,7 @@ _cpp_scan_out_logical_line (cpp_reader *pfile, cpp_macro *macro)
unsigned int c, paren_depth = 0, quote;
enum ls lex_state = ls_none;
bool header_ok;
+ const uchar *start_of_input_line;
fmacro.buff = NULL;
@@ -359,6 +360,9 @@ _cpp_scan_out_logical_line (cpp_reader *pfile, cpp_macro *macro)
RLIMIT (pfile->context) = pfile->buffer->rlimit;
pfile->out.cur = pfile->out.base;
pfile->out.first_line = pfile->line;
+ /* start_of_input_line is needed to make sure that directives really,
+ really start at the first character of the line. */
+ start_of_input_line = pfile->buffer->cur;
new_context:
context = pfile->context;
cur = CUR (context);
@@ -581,7 +585,7 @@ _cpp_scan_out_logical_line (cpp_reader *pfile, cpp_macro *macro)
break;
case '#':
- if (out - 1 == pfile->out.base
+ if (cur - 1 == start_of_input_line
/* A '#' from a macro doesn't start a directive. */
&& !pfile->context->prev
&& !pfile->state.in_directive)
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 0f66268..fdfcc6e 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2003-11-19 Nathanael Nerode <neroden@gcc.gnu.org>
+
+ * gcc.dg/cpp/trad/xwin1.c: New test case.
+
2003-11-19 Andreas Tobler <a.tobler@schweiz.ch>
* g++.dg/compat/compat.exp: Add DYLD_LIBRARY_PATH for darwin.
diff --git a/gcc/testsuite/gcc.dg/cpp/trad/xwin1.c b/gcc/testsuite/gcc.dg/cpp/trad/xwin1.c
new file mode 100644
index 0000000..21220d1
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/cpp/trad/xwin1.c
@@ -0,0 +1,13 @@
+/* XWindows (as of 4.3) does some pretty strange things with cpp.
+ This tests one of them; the leading comments are supposed to be
+ eaten by the preprocessor; but the 'directives' after them are
+ supposed to be retained as text, not processed, so that imake's cpp
+ can be run on the output!
+ { dg-do preprocess }
+*/
+
+/**/#if 0
+passed
+/**/#endif
+
+/* { dg-final { scan-file xwin1.i "(^|\n)#if 0" } } */