[patch] row::operator[](int)

Here's the int style patch to row.h, for evaluation.  It's not as clean
as the template solution, but there is less chance of weird error
messages.

Applies against CVS.

- Chris


Index: lib/row.h
===================================================================
--- lib/row.h   (revision 1119)
+++ lib/row.h   (working copy)
@@ -130,6 +130,18 @@
 
        /// \brief Get the value of a field given its index.
        ///
+       /// If the index value is bad, the underlying std::vector is
+       /// supposed to throw an exception, according to the Standard.
+       ///
+       /// This function provides the int overload so row[0] is not
+       /// ambiguous.
+       const ColData operator [](int i) const
+       {
+               return at(i);
+       }
+
+       /// \brief Get the value of a field given its index.
+       ///
        /// If the index is out-of-bounds, the underlying vector is supposed
        /// to throw an exception according to the C++ Standard.  Whether it
        /// actually does this is implementation-dependent.
 

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