#7682 Added regression test

Author: orbitcowboy

test/testbufferoverrun.cpp

@@ -132,6 +132,7 @@ class TestBufferOverrun : public TestFixture {
         TEST_CASE(array_index_49); // #8653
         TEST_CASE(array_index_50);
         TEST_CASE(array_index_51); // #3763
+        TEST_CASE(array_index_52); // #7682
         TEST_CASE(array_index_multidim);
         TEST_CASE(array_index_switch_in_for);
         TEST_CASE(array_index_for_in_for);   // FP: #2634
@@ -1534,6 +1535,17 @@ class TestBufferOverrun : public TestFixture {
         ASSERT_EQUALS("[test.cpp:3]: (error) Array 'd[1]' accessed at index 1, which is out of bounds.\n", errout.str());
     }
 
+    void array_index_52() {
+        check("char f(void)\n"
+              "{\n"
+              "    char buf[10];\n"
+              "    for(int i = 0, j= 11; i < j; ++i)\n"
+              "       buf[i] = 0;\n"
+              "    return buf[0];\n"
+              "}");
+        ASSERT_EQUALS("[test.cpp:5]: (error) Array 'buf[10]' accessed at index 10, which is out of bounds.\n", errout.str());
+    }
+
     void array_index_multidim() {
         check("void f()\n"
               "{\n"