5 files changed, 129 insertions, 0 deletions
diff --git a/testbed/custom_struct.c b/testbed/custom_struct.c
new file mode 100644
index 0000000..0d473f5
--- /dev/null
+++ b/testbed/custom_struct.c
@@ -0,0 +1,26 @@
+struct D {
+    int a, b;
+};
+struct A {
+    int a[100];
+    struct B {
+        struct C {
+            int x, y;
+        } c;
+        int z;
+        struct D *p;
+    } b;
+} s;
+int main() {
+    struct D d;
+    int n = 0;
+    s.a[1] = 1;
+    s.a[2] = 2;
+    s.b.z = 4;
+    s.b.c.x = 5;
+    s.b.c.y = 6;
+    s.b.p = &d;
+    s.b.p->a = 7;
+    s.b.p->b = 8;
+    printf("%d %d %d %d %d %d %d\n", s.a[1], s.a[2], s.b.z, s.b.c.x, s.b.c.y, s.b.p->a, s.b.p->b);
+}
diff --git a/testbed/custom_struct2.c b/testbed/custom_struct2.c
new file mode 100644
index 0000000..e147186
--- /dev/null
+++ b/testbed/custom_struct2.c
@@ -0,0 +1,41 @@
+struct A {
+    int x, y;
+} sa;
+struct A print(struct A a, struct A b) {
+    a.x++;
+    a.y++;
+    b.x--;
+    b.y--;
+    printf("args: %d %d\n", a.x, a.y);
+    printf("args: %d %d\n", b.x, b.y);
+    return a;
+}
+int main() {
+    int i;
+    int t;
+    int *a, *b;
+    struct A sb, sc;
+    a = malloc(sizeof(int) * 100);
+    for (i = 0; i < 100; i++)
+        a[i] = i;
+    b = malloc(sizeof(int) * 100);
+    memcpy(b, a, sizeof(int) * 100);
+    for (i = 0; i < 100; i++)
+        printf("%d ", b[i]);
+    sb.x = 1;
+    sb.y = 2;
+    sa = sb;
+    sc = sa;
+    printf("\n%d %d\n", sa.x, sa.y);
+    printf("%d %d\n", sc.x, sc.y);
+    sa.x = 1;
+    sa.y = 2;
+    sb.x = 1;
+    sb.y = 2;
+    sa = print(sa, sb);
+    sb = print(sa, sb);
+    sa = print(sa, sb);
+    sb = print(sa, sb);
+    printf("%d %d\n", sa.x, sa.y);
+    printf("%d %d\n", sb.x, sb.y);
+}
diff --git a/testbed/custom_struct3.c b/testbed/custom_struct3.c
new file mode 100644
index 0000000..d7060b3
--- /dev/null
+++ b/testbed/custom_struct3.c
@@ -0,0 +1,15 @@
+struct A {
+    int x, y;
+} a[10];
+struct A f(struct A a) {
+    a.x++;
+    a.y++;
+    return a;
+}
+int main(){
+    int i;
+    for (i = 1; i < 10; i++)
+        a[i] = f(a[i - 1]);
+    for (i = 0; i < 10; i++)
+        printf("%d %d\n", a[i].x, a[i].y);
+}
diff --git a/testbed/custom_struct4.c b/testbed/custom_struct4.c
new file mode 100644
index 0000000..75f50ea
--- /dev/null
+++ b/testbed/custom_struct4.c
@@ -0,0 +1,28 @@
+struct A {
+    struct B {
+        int x, y;
+        struct C {
+            int w;
+        } c;
+    } b;
+    int z;
+};
+
+struct B f(struct A a) {
+    printf("z: %d\n", a.z);
+    return a.b;
+}
+
+struct C g(struct B b) {
+    printf("x: %d\ny: %d\n", b.x, b.y);
+    return b.c;
+}
+
+int main() {
+    struct A a;
+    a.z = 1;
+    a.b.x = 2;
+    a.b.y = 3;
+    a.b.c.w = 4;
+    printf("w: %d\n", g(f(a)).w);
+}
diff --git a/testbed/func_pointer.c b/testbed/func_pointer.c
new file mode 100644
index 0000000..e7b6484
--- /dev/null
+++ b/testbed/func_pointer.c
@@ -0,0 +1,19 @@
+typedef void (*Func_t)();
+void f(Func_t func, int step) {
+    if (!step) return;
+    printf("i'm f\n");
+    func(func, step - 1);
+}
+void g(void (*func)(), int step) {
+    if (!step) return;
+    printf("i'm g\n");
+    func(func, step - 1);
+}
+int main() {
+    void (*func)(void (*ifunc)(), int step);
+    int x = 1;
+    if (x) func = f;
+    else func = g;
+    func(func, 5);
+    return 0;
+}