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-rw-r--r--gnu/lib/libg++/g++-include/VStack.hP120
1 files changed, 120 insertions, 0 deletions
diff --git a/gnu/lib/libg++/g++-include/VStack.hP b/gnu/lib/libg++/g++-include/VStack.hP
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+++ b/gnu/lib/libg++/g++-include/VStack.hP
@@ -0,0 +1,120 @@
+// This may look like C code, but it is really -*- C++ -*-
+/*
+Copyright (C) 1988 Free Software Foundation
+ written by Doug Lea (dl@rocky.oswego.edu)
+
+This file is part of the GNU C++ Library. This library is free
+software; you can redistribute it and/or modify it under the terms of
+the GNU Library General Public License as published by the Free
+Software Foundation; either version 2 of the License, or (at your
+option) any later version. This library is distributed in the hope
+that it will be useful, but WITHOUT ANY WARRANTY; without even the
+implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+PURPOSE. See the GNU Library General Public License for more details.
+You should have received a copy of the GNU Library General Public
+License along with this library; if not, write to the Free Software
+Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+
+#ifndef _<T>VStack_h
+#ifdef __GNUG__
+#pragma interface
+#endif
+#define _<T>VStack_h 1
+
+#include "<T>.Stack.h"
+
+class <T>VStack : public <T>Stack
+{
+protected:
+ int size;
+ int ptr;
+ <T>* s;
+
+public:
+
+ <T>VStack(int sz = DEFAULT_INITIAL_CAPACITY);
+ <T>VStack(<T>VStack&);
+ ~<T>VStack();
+
+ void operator = (<T>VStack&);
+ void push(<T&> item);
+ <T> pop();
+ <T>& top();
+ void del_top();
+
+ int length();
+ int empty();
+ int full();
+ void clear();
+
+ void resize(int sz);
+ int capacity();
+
+ int OK();
+};
+
+
+inline <T>VStack::<T>VStack(int sz)
+{
+ s = new <T> [size = sz];
+ ptr = 0;
+}
+
+inline <T>VStack::~<T>VStack()
+{
+ delete [] s;
+}
+
+inline void <T>VStack::clear()
+{
+ ptr = 0;
+}
+
+inline int <T>VStack::capacity()
+{
+ return size;
+}
+
+inline int <T>VStack::empty()
+{
+ return ptr == 0;
+}
+
+inline int <T>VStack::full()
+{
+ return ptr == size;
+}
+
+inline int <T>VStack::length()
+{
+ return ptr;
+}
+
+inline void <T>VStack::push(<T&> item)
+{
+ if (full()) error("push to full stack.");
+ s[ptr++] = item;
+}
+
+inline <T> <T>VStack::pop()
+{
+ if (empty()) error("pop from empty stack.");
+ return s[--ptr];
+}
+
+
+inline void <T>VStack::del_top()
+{
+ if (empty()) error("del_top from empty stack.");
+ --ptr;
+}
+
+inline <T>& <T>VStack::top()
+{
+ if (empty()) error("top from empty stack.");
+ return s[ptr-1];
+}
+
+#endif