Test multiple levels of pointer indirection.

2 files changed, 47 insertions, 1 deletions

diff --git a/libacc/tests/data/pointers2.c b/libacc/tests/data/pointers2.c
new file mode 100644
index 0000000..69e402f
--- /dev/null
+++ b/libacc/tests/data/pointers2.c
@@ -0,0 +1,35 @@
+// Test multiple levels of indirection
+
+void testsingle() {
+    int a = 0;
+    int* pa = &a;
+    printf("a = %d, *pa = %d\n", a, *pa);
+    *pa = 2;
+    printf("a = %d, *pa = %d\n", a, *pa);
+}
+
+void testdouble() {
+    int a = 0;
+    int* pa = &a;
+    int** ppa = &pa;
+    printf("a = %d, *pa = %d **ppa = %d\n", a, *pa, **ppa);
+    **ppa = 2;
+    printf("a = %d, *pa = %d **ppa = %d\n", a, *pa, **ppa);
+}
+
+void testtripple() {
+    int a = 0;
+    int* pa = &a;
+    int** ppa = &pa;
+    int*** pppa = &ppa;
+    printf("a = %d, *pa = %d **ppa = %d\n ***pppa = %d", a, *pa, **ppa, ***pppa);
+    ***pppa = 2;
+    printf("a = %d, *pa = %d **ppa = %d\n ***pppa = %d", a, *pa, **ppa, ***pppa);
+}
+
+int main() {
+    testsingle();
+    testdouble();
+    testdouble();
+    return 0;
+}
diff --git a/libacc/tests/test.py b/libacc/tests/test.py
index 31b8329..f9089be 100644
--- a/libacc/tests/test.py
+++ b/libacc/tests/test.py
@@ -324,11 +324,22 @@ result: 0""", """Literals: 1 -1
 0
 """)
 
-    def testFilm    (self):
+    def testFilm(self):
         self.compileCheck(["-R", "data/film.c"], """Executing compiled code:
 result: 0""", """testing...
 Total bad: 0
 """)
+
+    def testpointers2(self):
+        self.compileCheck(["-R", "data/pointers2.c"], """Executing compiled code:
+result: 0""", """a = 0, *pa = 0
+a = 2, *pa = 2
+a = 0, *pa = 0 **ppa = 0
+a = 2, *pa = 2 **ppa = 2
+a = 0, *pa = 0 **ppa = 0
+a = 2, *pa = 2 **ppa = 2
+""")
+
 if __name__ == '__main__':
     if not outputCanRun():
         print "Many tests are expected to fail, because acc is not a 32-bit x86 Linux executable."