1 files changed, 134 insertions, 0 deletions
diff --git a/tests/pointers.c b/tests/pointers.c
new file mode 100644
index 0000000..8fd1d9c
--- /dev/null
+++ b/tests/pointers.c
@@ -0,0 +1,134 @@
+#include <helpers.h>
+
+void* calloc(long, long);
+
+int glob_a;
+int glob_b[12];
+
+int main() {
+    int a1;
+    int* a2;
+    char a3;
+    char* a4;
+    long a5;
+    long* a6;
+    void* a8;
+    int** a10;
+    char** a12;
+    long** a14;
+    void** a16;
+    int*** a18;
+    char*** a20;
+    long*** a22;
+    void*** a24;
+    int* const* const* a25;
+
+    int x;
+    int* y;
+    y = &x;
+    *y = 42;
+    ASSERT_EQ(42, x);
+    ASSERT_EQ(42, *y);
+
+    char c;
+    int ii;
+    long l;
+    c = 42;
+    ii = 42 * 2;
+    l = 42 * 3;
+
+    char* cp1;
+    char* cp2;
+    int* ip1;
+    int* ip2;
+    long* lp1;
+    long* lp2;
+
+    cp1 = &c;
+    cp2 = &c + 3;
+
+    ip1 = &ii;
+    ip2 = &ii + 3;
+
+    lp1 = &l;
+    lp2 = &l + 3;
+
+    ASSERT_EQ(3, cp2 - cp1);
+    ASSERT_EQ(3, ip2 - ip1);
+    ASSERT_EQ(3, lp2 - lp1);
+
+    int b;
+    int* a = &b;
+    a[0] = 42;
+    ASSERT_EQ(42, *a);
+
+    long* arr = calloc(10, sizeof(long));
+    long i = 0;
+    for (i = 0; i < 10; i = i + 1) {
+        arr[i] = i;
+    }
+    for (i = 0; i < 10; i = i + 1) {
+        ASSERT_EQ(i, *(arr + i));
+        ASSERT_EQ(i, arr[i]);
+    }
+
+    char* source = calloc(4, sizeof(char));
+    source[0] = 'A';
+    source[1] = 'B';
+    source[2] = 'C';
+    source[3] = 'D';
+
+    int ca = source[0];
+    ASSERT_EQ(65, ca);
+    ASSERT_EQ(65, source[0]);
+    ASSERT_EQ(66, source[1]);
+    ASSERT_EQ(67, source[2]);
+    ASSERT_EQ(68, source[3]);
+
+    int sa[10];
+    for (int j = 0; j < 10; ++j) {
+        sa[j] = j * j;
+    }
+    for (int j = 0; j < 10; ++j) {
+        ASSERT_EQ(j * j, sa[j]);
+    }
+
+    ASSERT_EQ(0, glob_a);
+    glob_a = 42;
+    ASSERT_EQ(42, glob_a);
+    ASSERT_EQ(48, sizeof(glob_b));
+    for (int j = 0; j < 12; ++j) {
+        ASSERT_EQ(0, glob_b[j]);
+    }
+    glob_b[11] = 123;
+    ASSERT_EQ(123, glob_b[11]);
+
+    int arr_a[10 * 10];
+    int arr_b[10 + 10];
+    int arr_c[1 << 2];
+    ASSERT_EQ(400, sizeof(arr_a));
+    ASSERT_EQ(80, sizeof(arr_b));
+    ASSERT_EQ(16, sizeof(arr_c));
+
+    "";
+    "abc";
+    "\"foo\"bar\\\n\"";
+
+    ASSERT_EQ_STR("defghijkl", "def" "ghi"
+    "jkl");
+
+    char* h = " hello,world" + 1;
+    ASSERT_EQ('h', *h);
+    ASSERT_EQ('l', h[2]);
+    ASSERT_EQ(',', *(h + 5));
+
+    char* s = "hi";
+    int results[3];
+    int count = 0;
+    while (*s++) {
+        results[count++] = *s;
+    }
+    ASSERT_EQ(2, count);
+    ASSERT_EQ(105, results[0]);
+    ASSERT_EQ(0, results[1]);
+}