Add Fl_Int_Vector: "an STL-ish vector without templates"

Code copied from Fl_Table and reformatted.

Thanks to Greg for the original code.

1 files changed, 83 insertions, 0 deletions

diff --git a/FL/Fl_Int_Vector.H b/FL/Fl_Int_Vector.H
new file mode 100644
index 000000000..1ab092a18
--- /dev/null
+++ b/FL/Fl_Int_Vector.H
@@ -0,0 +1,83 @@
+//
+// An STL-ish vector without templates for the Fast Light Tool Kit (FLTK).
+//
+// Copyright 2002 by Greg Ercolano.
+// Copyright 2022 by Bill Spitzak and others.
+//
+// This library is free software. Distribution and use rights are outlined in
+// the file "COPYING" which should have been included with this file.  If this
+// file is missing or damaged, see the license at:
+//
+//     https://www.fltk.org/COPYING.php
+//
+// Please see the following page on how to report bugs and issues:
+//
+//     https://www.fltk.org/bugs.php
+//
+
+#ifndef Fl_Int_Vector_H
+#define Fl_Int_Vector_H
+
+#include <FL/Fl.H>
+
+class FL_EXPORT Fl_Int_Vector {
+  int *arr_;
+  unsigned int size_;
+  void init() {
+    arr_ = 0;
+    size_ = 0;
+  }
+  void copy(int *newarr, unsigned int newsize);
+
+public:
+  Fl_Int_Vector() {
+    init();
+  }
+
+  ~Fl_Int_Vector();
+
+  // copy constructor
+  Fl_Int_Vector(Fl_Int_Vector &o) {
+    init();
+    copy(o.arr_, o.size_);
+  }
+
+  // assignment operator
+  Fl_Int_Vector &operator=(Fl_Int_Vector &o) {
+    init();
+    copy(o.arr_, o.size_);
+    return *this;
+  }
+
+  int operator[](int x) const {
+    return arr_[x];
+  }
+
+  int &operator[](int x) {
+    return arr_[x];
+  }
+
+  unsigned int size() {
+    return size_;
+  }
+
+  void size(unsigned int count);
+
+  int pop_back() {
+    int tmp = arr_[size_ - 1];
+    size_--;
+    return tmp;
+  }
+
+  void push_back(int val) {
+    unsigned int x = size_;
+    size(size_ + 1);
+    arr_[x] = val;
+  }
+
+  int back() {
+    return arr_[size_ - 1];
+  }
+};
+
+#endif // Fl_Int_Vector_H