cpphash.c (special_symbol): When expanding __LINE__, use the top file buffer, not the top buffer.

1999-04-09 22:58 -0400  Zack Weinberg  <zack@rabi.columbia.edu>
	* cpphash.c (special_symbol): When expanding __LINE__, use the
	top file buffer, not the top buffer.

From-SVN: r26319

gcc/ChangeLog

+1999-04-09 22:58 -0400  Zack Weinberg  <zack@rabi.columbia.edu>
+
+	* cpphash.c (special_symbol): When expanding __LINE__, use the
+	top file buffer, not the top buffer.
+
 Fri Apr  9 13:41:04 1999  Jim Wilson  <wilson@cygnus.com>
 
 	* Makefile.in (check-g++, check-gcc, check-g77, check-objc): Add

gcc/cpphash.c

@@ -991,7 +991,7 @@ special_symbol (hp, pfile)
     case T_SPECLINE:
       {
 	long line;
-	cpp_buf_line_and_col (CPP_BUFFER (pfile), &line, NULL);
+	cpp_buf_line_and_col (cpp_file_buffer (pfile), &line, NULL);
 
 	CPP_RESERVE (pfile, 10);
 	sprintf (CPP_PWRITTEN (pfile), "%ld", line);

gcc/testsuite/gcc.dg/990409-1.c

+/* Test that __LINE__ works when embedded in a macro. */
+/* { dg-do run } */
+
+#define foo() bar(__LINE__)
+
+void
+bar(int x)
+{
+    if (x != 16)
+	abort();
+}
+
+int
+main(void)
+{
+    foo();    /* This is line 16 */
+    return 0;
+}