diff --git a/lizard_languages/code_reader.py b/lizard_languages/code_reader.py
index 9e12658..e8d7d98 100644
--- a/lizard_languages/code_reader.py
+++ b/lizard_languages/code_reader.py
@@ -127,6 +127,8 @@ def _generate_tokens(source, add, flags=re.NOFLAG):
                 r"\/\*.*?\*\/" +
                 add +
                 r"|(?:\d+\')+\d+" +
+                r"|0x(?:[0-9A-Fa-f]+\')+[0-9A-Fa-f]+" +
+                r"|0b(?:[01]+\')+[01]+" +
                 r"|\w+" +
                 r"|\"(?:\\.|[^\"\\])*\"" +
                 r"|\'(?:\\.|[^\'\\])*?\'" +
diff --git a/test/test_languages/testCAndCPP.py b/test/test_languages/testCAndCPP.py
index 17646ce..b04b901 100644
--- a/test/test_languages/testCAndCPP.py
+++ b/test/test_languages/testCAndCPP.py
@@ -100,6 +100,20 @@ def test_number_with_thousands_separator_since_cpp14(self):
         self.assertEqual(1, len(result))
         self.assertEqual(2, result[0].cyclomatic_complexity)
 
+    def test_hex_number_with_thousands_separator_since_cpp14(self):
+        result = get_cpp_function_list("""int fun(){
+            int a= 0x12ab'34cd; if(b) c; return 0xEF56'7890'1A2B;
+        }""")
+        self.assertEqual(1, len(result))
+        self.assertEqual(2, result[0].cyclomatic_complexity)
+
+    def test_bin_number_with_thousands_separator_since_cpp14(self):
+        result = get_cpp_function_list("""int fun(){
+            int a= 0b0101'1100; if(b) c; return 0b1111'0000'1100'1110;
+        }""")
+        self.assertEqual(1, len(result))
+        self.assertEqual(2, result[0].cyclomatic_complexity)
+
     def test_function_with_no_param_omitted(self):
         result = get_cpp_function_list("int fun(){}")
         self.assertEqual(0, result[0].parameter_count)