* fix a couple of warnings (patch from Armin Berres)

* allow Map to map null data

1 files changed, 6 insertions, 6 deletions

diff --git a/Eigen/src/Core/IO.h b/Eigen/src/Core/IO.h
index b7d4c9eac..6e6d02ad4 100644
--- a/Eigen/src/Core/IO.h
+++ b/Eigen/src/Core/IO.h
@@ -6,12 +6,12 @@
 //
 // Eigen is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Lesser General Public
-// License as published by the Free Software Foundation; either 
+// License as published by the Free Software Foundation; either
 // version 3 of the License, or (at your option) any later version.
 //
 // Alternatively, you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of 
+// published by the Free Software Foundation; either version 2 of
 // the License, or (at your option) any later version.
 //
 // Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
@@ -19,7 +19,7 @@
 // FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
 // GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public 
+// You should have received a copy of the GNU Lesser General Public
 // License and a copy of the GNU General Public License along with
 // Eigen. If not, see <http://www.gnu.org/licenses/>.
 
@@ -58,7 +58,7 @@ struct IOFormat
     coeffSeparator(_coeffSeparator), precision(_precision), flags(_flags)
   {
     rowSpacer = "";
-    int i=matSuffix.length()-1;
+    int i = int(matSuffix.length())-1;
     while (i>=0 && matSuffix[i]!='\n')
     {
       rowSpacer += ' ';
@@ -81,7 +81,7 @@ struct IOFormat
   * This class represents an expression with stream operators controlled by a given IOFormat.
   * It is the return type of MatrixBase::format()
   * and most of the time this is the only way it is used.
-  * 
+  *
   * See class IOFormat for some examples.
   *
   * \sa MatrixBase::format(), class IOFormat
@@ -135,7 +135,7 @@ std::ostream & ei_print_matrix(std::ostream & s, const MatrixBase<Derived> & _m,
         std::stringstream sstr;
         sstr.precision(fmt.precision);
         sstr << m.coeff(i,j);
-        width = std::max<int>(width, sstr.str().length());
+        width = std::max<int>(width, int(sstr.str().length()));
       }
   }
   s.precision(fmt.precision);