From 1b6152a8b901df0e8b57c35b9846a6e609b8b7df Mon Sep 17 00:00:00 2001
From: Ricardo Markiewicz <rmarkie@fi.uba.ar>
Date: Mon, 12 Sep 2005 05:08:45 +0000
Subject: [PATCH] Agrego estructura basica para manejo de claves La idea es que
 el manejo sea transparente a travez del tipo "Clave" y toda la magia la haga
 los objetitos.

---
 src/Makefile       |  5 +++--
 src/btree.h        |  2 +-
 src/clave.h        | 17 +++++++++++++++++
 src/clave_fija.cpp | 17 +++++++++++++++++
 src/clave_fija.h   | 19 +++++++++++++++++++
 src/common.h       |  9 +++++++++
 6 files changed, 66 insertions(+), 3 deletions(-)
 create mode 100644 src/clave.h
 create mode 100644 src/clave_fija.cpp
 create mode 100644 src/clave_fija.h
 create mode 100644 src/common.h

diff --git a/src/Makefile b/src/Makefile
index 5440d99..cd9cbe7 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -3,5 +3,6 @@ CXXFLAGS=-Wall -g
 
 all: $(TARGET)
 
-$(TARGET): main.o btree.o
-	g++ -o $(TARGET) main.o btree.o
+$(TARGET): main.o btree.o clave_fija.o
+	g++ -o $(TARGET) main.o btree.o clave_fija.o
+
diff --git a/src/btree.h b/src/btree.h
index 0ed4fbd..744079b 100644
--- a/src/btree.h
+++ b/src/btree.h
@@ -45,9 +45,9 @@
  */
 
 #include <string>
+#include "common.h"
 
 /* alias para codear menos :) */
-typedef unsigned char uchar;
 
 /** Encabezado del archivo BTree */
 typedef struct _btree_file_ {
diff --git a/src/clave.h b/src/clave.h
new file mode 100644
index 0000000..7cf3ceb
--- /dev/null
+++ b/src/clave.h
@@ -0,0 +1,17 @@
+
+#ifndef _CLAVE_H_
+#define _CLAVE_H_
+
+/* Clave para agregar a un arbol B */
+#include "common.h"
+
+class Clave {
+	public:
+		virtual ~Clave () {}
+
+		virtual uint Size () = 0;
+		virtual uchar *ToArray () = 0;
+};
+
+#endif
+
diff --git a/src/clave_fija.cpp b/src/clave_fija.cpp
new file mode 100644
index 0000000..05c9814
--- /dev/null
+++ b/src/clave_fija.cpp
@@ -0,0 +1,17 @@
+
+#include <string>
+#include "clave_fija.h"
+
+uint ClaveFija::Size ()
+{
+	return sizeof (int);
+}
+
+uchar *ClaveFija::ToArray ()
+{
+	uchar *out;
+	out = new uchar[sizeof(int)];
+	memcpy (out, &data, sizeof(int));
+	return out;
+}
+
diff --git a/src/clave_fija.h b/src/clave_fija.h
new file mode 100644
index 0000000..b11fe22
--- /dev/null
+++ b/src/clave_fija.h
@@ -0,0 +1,19 @@
+
+#ifndef _CLAVE_FIJA_H_
+#define _CLAVE_FIJA_H_
+
+#include "clave.h"
+
+class ClaveFija : Clave {
+	public :
+		virtual ~ClaveFija () {}
+
+		virtual uint Size ();
+		virtual uchar *ToArray ();
+
+	private:
+		int data;
+};
+
+#endif
+
diff --git a/src/common.h b/src/common.h
new file mode 100644
index 0000000..6e7079f
--- /dev/null
+++ b/src/common.h
@@ -0,0 +1,9 @@
+
+#ifndef _COMMON_H_
+#define _COMMON_H_
+
+typedef unsigned char uchar;
+typedef unsigned int uint;
+
+#endif
+
-- 
2.43.0