1 files changed, 39 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/c23-digit-separators-1.c b/gcc/testsuite/gcc.dg/c23-digit-separators-1.c
new file mode 100644
index 0000000..4b5f4f6
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/c23-digit-separators-1.c
@@ -0,0 +1,39 @@
+/* Test C23 digit separators.  Valid usages.  */
+/* { dg-do run } */
+/* { dg-options "-std=c23 -pedantic-errors" } */
+
+_Static_assert (123'45'6 == 123456);
+_Static_assert (0'123 == 0123);
+_Static_assert (0x1'23 == 0x123);
+
+#define m(x) 0
+
+_Static_assert (m(1'2)+(3'4) == 34);
+
+_Static_assert (0x0'e-0xe == 0);
+
+#define a0 '.' -
+#define acat(x) a ## x
+_Static_assert (acat (0'.') == 0);
+
+#define c0(x) 0
+#define b0 c0 (
+#define bcat(x) b ## x
+_Static_assert (bcat (0'\u00c0')) == 0);
+
+extern void exit (int);
+extern void abort (void);
+
+int
+main (void)
+{
+  if (314'159e-0'5f != 3.14159f)
+    abort ();
+  exit (0);
+}
+
+#line 0'123
+_Static_assert (__LINE__ == 123);
+
+#line 4'56'7'8'9
+_Static_assert (__LINE__ == 456789);