1 files changed, 68 insertions, 0 deletions
diff --git a/tests/runner.py b/tests/runner.py
index f3602097..32f69781 100755
--- a/tests/runner.py
+++ b/tests/runner.py
@@ -1192,6 +1192,74 @@ c5,de,15,8a
 13
 ''')
 
+    def test_bswap64(self):
+      if Settings.USE_TYPED_ARRAYS != 2: return self.skip('needs ta2')
+
+      src = r'''
+        #include <stdio.h>
+        #include <stdlib.h>
+
+        #include <iostream>
+        #include <string>
+        #include <sstream>
+
+        typedef unsigned long long quint64;   
+
+        using namespace std;
+
+        inline quint64 qbswap(quint64 source)
+        {
+            return 0
+                | ((source & quint64(0x00000000000000ffLL)) << 56)
+                | ((source & quint64(0x000000000000ff00LL)) << 40)
+                | ((source & quint64(0x0000000000ff0000LL)) << 24)
+                | ((source & quint64(0x00000000ff000000LL)) << 8)
+                | ((source & quint64(0x000000ff00000000LL)) >> 8)
+                | ((source & quint64(0x0000ff0000000000LL)) >> 24)
+                | ((source & quint64(0x00ff000000000000LL)) >> 40)
+                | ((source & quint64(0xff00000000000000LL)) >> 56);
+        }
+
+        int main()
+        {
+          quint64 v = strtoull("4433ffeeddccbb00", NULL, 16);
+          printf("%lld\n", v);
+
+	        const string string64bitInt = "4433ffeeddccbb00";
+	        stringstream s(string64bitInt);
+	        quint64 int64bitInt = 0;
+          printf("1\n");
+	        s >> hex >> int64bitInt;
+          printf("2\n");
+	
+	        stringstream out;
+	        out << hex << qbswap(int64bitInt);
+	
+	        cout << out.str() << endl;
+	        cout << hex << int64bitInt << endl;
+	        cout << string64bitInt << endl;
+	
+	        if (out.str() != "bbccddeeff3344")
+	        {
+		        cout << "Failed!" << endl;
+	        }
+	        else
+	        {
+		        cout << "Succeeded!" << endl;
+	        }
+
+          return 0;
+        }
+        '''
+      self.do_run(src, '''4914553019779824384
+1
+2
+bbccddeeff3344
+4433ffeeddccbb00
+4433ffeeddccbb00
+Succeeded!
+''')
+
     def test_sha1(self):
       if self.emcc_args == None: return self.skip('needs ta2')