1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/cpp/paste4.c b/gcc/testsuite/gcc.dg/cpp/paste4.c
new file mode 100644
index 000000000..dfc455ded
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/cpp/paste4.c
@@ -0,0 +1,18 @@
+/* Copyright (C) 2000 Free Software Foundation, Inc.  */
+/* { dg-do compile } */
+/* { dg-options -save-temps } */
+
+/* Since 1.0e and + form the pasted token, 1 is a separate token and
+   so should be output with a preceding space.  The old preprocessor
+   gets this wrong.  We use -save-temps to avoid direct use of the
+   integrated preprocessor.  */
+
+#define glue(x, y) x ## y
+
+int main ()
+{
+  double d = glue (1.0e, +1); /* { dg-error "exponent|parse error|syntax error|expected" } */
+  return 0;
+}
+
+/* { dg-final { cleanup-saved-temps } } */