1 files changed, 81 insertions, 0 deletions
diff --git a/variablearray.cpp b/variablearray.cpp
new file mode 100644
index 0000000..c1d0503
--- /dev/null
+++ b/variablearray.cpp
@@ -0,0 +1,81 @@
+#include "variablearray.h"
+#include <algorithm> /* for find() */
+
+VariableArray::VariableArray() : arr(/* ARR_STARTING_SIZE */)
+{
+}
+
+VariableArray::VariableArray(const VariableArray& array) : Collection(array), arr(array.arr) /* ha! */
+{
+}
+
+VariableArray& VariableArray::operator=(const Collection& rhs)
+{
+    this->arr = dynamic_cast<const VariableArray *>(&rhs)->arr; /* use vector's copy ctor */
+    this->size_ = rhs.get_size();
+    return *this;
+}
+
+VariableArray::~VariableArray()
+{
+}
+
+void VariableArray::add(int n)
+{
+    this->arr.push_back(n);
+    this->size_++;
+}
+
+bool VariableArray::remove(int n)
+{
+    std::vector<int>::iterator pos = std::find(this->arr.begin(), this->arr.end(), n);
+    if (pos != this->arr.end())
+    {
+        this->arr.erase(pos); /* kind of slow, since elements will get shifted */
+        this->size_--;
+        return true;
+    }
+    else
+        return false;
+}
+
+int VariableArray::operator[](const int i)
+{
+    /* invalid accesses */
+    if (!this->size_ || i < 0 || i+1 > this->size_)
+        return -1;
+
+    return this->arr[i];
+}
+
+VariableArray *VariableArray::copy(void)
+{
+    VariableArray *ret = new VariableArray(*this);
+    return ret;
+}
+
+void VariableArray::iterate(void (*callback)(int *))
+{
+    std::vector<int>::size_type i;
+    for (i = 0; i != this->arr.size(); ++i)
+        callback(&this->arr[i]);
+}
+
+bool VariableArray::contains(int n) const
+{
+    return (std::find(this->arr.begin(), this->arr.end(), n) != this->arr.end());
+}
+
+std::string VariableArray::print(void) const
+{
+    std::stringstream sstm;
+    std::vector<int>::const_iterator iter = this->arr.begin();
+    while (iter != this->arr.end())
+    {
+        sstm << *iter << " ";
+        iter++;
+    }
+
+    return sstm.str();
+}
+