X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FBackStack.h;h=5ca40451a3cb009f7bcaa6a8091ccb85a648d6ac;hb=a858be7332e331e0244e4dba7b0931b6072ffd3d;hp=89f49730b6efb9ac0974597a67cae35bc5d6cbbe;hpb=27de1486ca34aaad446adb798d71a77d6f6304da;p=lyx.git

diff --git a/src/BackStack.h b/src/BackStack.h
index 89f49730b6..5ca40451a3 100644
--- a/src/BackStack.h
+++ b/src/BackStack.h
@@ -1,15 +1,15 @@
 // -*- C++ -*-
 /* This file is part of
-* ======================================================
-* 
-*           LyX, The Document Processor
-* 	 
-*	    Copyright (C) 1997-1998 The LyX Team.
-*
-*======================================================*/
+ * ======================================================
+ * 
+ *           LyX, The Document Processor
+ * 	 
+ *	    Copyright (C) 1997-1999 The LyX Team.
+ *
+ * ======================================================*/
 
-#ifndef _BACK_STACK_H
-#define _BACK_STACK_H
+#ifndef BACK_STACK_H
+#define BACK_STACK_H
 
 #include "LString.h"
 
@@ -22,37 +22,38 @@ public:
 	///
 	struct BackStackItem {
 		///
-		void set(LString f, int xx, int yy) {
+		void set(string f, int xx, int yy) {
 			fname = f;  x = xx;  y = yy;
 		}
 		/// Filename
-		LString fname;
+		string fname;
 		/// Cursor x-position
 		int x;
 		/// Cursor y-position
-		int y;   
+		int y;
 	};
 	///
-	BackStack(int n) : imax(n) {
-		item = new BackStackItem[imax];
-		i = 0;
-	}
+	BackStack(int n) : item(new BackStackItem[n]) , i(0), imax(n) {}
 	///
 	~BackStack() {
 		delete[] item;
 	}
 	///
-	void push(LString f, int x, int y) {
-		if (i<imax) 
+	void push(string f, int x, int y) {
+		if (i < imax) 
 			item[i++].set(f, x, y);
 	}
 	///
-	LString &pop(int *x, int *y) {
-		if (i>0) i--;
+	string & pop(int *x, int *y) {
+		if (i > 0) i--;
 		*x = item[i].x;
 		*y = item[i].y;
 		return item[i].fname;
 	}
+	///
+	bool empty() const {
+		return i == 0;
+	}
 private:
 	///
 	BackStackItem *item;