More N3077 raw string changes

	More N3077 raw string changes
	* charset.c (cpp_interpret_string): Don't transform UCNs in raw
	strings.
	* lex.c (bufring_append): Split out from...
	(lex_raw_string): ...here.  Undo trigraph and line splicing
	transformations.  Do process line notes in multi-line literals.
	(_cpp_process_line_notes): Ignore notes that were already handled.

From-SVN: r157804

1 files changed, 20 insertions, 0 deletions

diff --git a/gcc/testsuite/c-c++-common/raw-string-10.c b/gcc/testsuite/c-c++-common/raw-string-10.c
new file mode 100644
index 0000000..76ed34e
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/raw-string-10.c
@@ -0,0 +1,20 @@
+// Test that we don't revert trigraphs and line splicing when a raw string
+// literal is formed by token pasting.
+// { dg-options "-std=gnu99 -trigraphs" { target c } }
+// { dg-options "-std=c++0x" { target c++ } }
+// { dg-do run }
+
+#define PASTE(X,Y) X##Y
+
+const char a[] = PASTE(R,"(??>\
+)");
+
+#define TEST(str, val) \
+  if (sizeof (str) != sizeof (val) \
+      || __builtin_memcmp (str, val, sizeof (str)) != 0) \
+    __builtin_abort ()
+
+int main()
+{
+  TEST (a, "}");
+}