compile patch

[Angus Leeming]

I need an operator!=() for LyXLength in order to get insettabular.C to 
compile. The patch, attached, has the necessary code. 

It looks to like g++ (I presume that the code compiles with g++ withouththis 
modification) generates an operator!=() function automatically if it has the 
appropriate operator==() function. Is this so, and is it standard C++?

Regards,
Angus


cxx -std strict_ansi -nocleanup -DHAVE_CONFIG_H -I. -I. -I../../src -I./../ 
-I../.. -I../.. -I../../boost -I../../src/cheaders -I/usr/local/include 
-msg_display_number -msg_disable 11,193,236,261,401,611 -w0 -ptr 
/usr/users/aleem/OTHERS_CODE/lyx/devel/lyx_cxx_repository -O2 -MD -c 
insettabular.C
cxx: Error: insettabular.C, line 1692: #349 no operator "!=" matches these
          operands
            operand types are: const LyXLength != const LyXLength
                bool const update = (tabular->GetColumnPWidth(actcell) != 
vallen);

cxx: Error: insettabular.C, line 1706: #349 no operator "!=" matches these
          operands
            operand types are: const LyXLength != const LyXLength
                bool const update = (tabular->GetPWidth(actcell) != vallen);

Index: src/ChangeLog
===================================================================
RCS file: /usr/local/lyx/cvsroot/lyx-devel/src/ChangeLog,v
retrieving revision 1.456
diff -u -p -r1.456 ChangeLog
--- src/ChangeLog	2001/12/12 09:55:59	1.456
+++ src/ChangeLog	2001/12/12 11:30:40
@@ -1,3 +1,7 @@
+2001-12-12  Angus Leeming  <[EMAIL PROTECTED]>
+
+	* lyxlength.[Ch]: add an operator!=() function.
+
 2001-12-12  Jean-Marc Lasgouttes  <[EMAIL PROTECTED]>
 
 	* text.C (workWidth): use Inset::parOwner to find out where the
Index: src/lyxlength.C
===================================================================
RCS file: /usr/local/lyx/cvsroot/lyx-devel/src/lyxlength.C,v
retrieving revision 1.6
diff -u -p -r1.6 lyxlength.C
--- src/lyxlength.C	2001/12/05 08:50:13	1.6
+++ src/lyxlength.C	2001/12/12 11:30:41
@@ -111,3 +111,9 @@ bool operator==(LyXLength const & l1, Ly
 {
 	return l1.value() == l2.value() && l1.unit() == l2.unit();
 }
+
+
+bool operator!=(LyXLength const & l1, LyXLength const & l2)
+{
+	return !(l1 == l2);
+}
Index: src/lyxlength.h
===================================================================
RCS file: /usr/local/lyx/cvsroot/lyx-devel/src/lyxlength.h,v
retrieving revision 1.2
diff -u -p -r1.2 lyxlength.h
--- src/lyxlength.h	2001/12/05 08:04:14	1.2
+++ src/lyxlength.h	2001/12/12 11:30:41
@@ -98,6 +98,8 @@ private:
 ///
 bool operator==(LyXLength const & l1, LyXLength const & l2);
 ///
+bool operator!=(LyXLength const & l1, LyXLength const & l2);
+///
 bool isValidLength(string const & data, LyXLength * result);
 ///
 char const * stringFromUnit(int unit);