bug #1382: move using std::size_t/ptrdiff_t to Eigen's namespace (still better than the global namespace!)

1 files changed, 4 insertions, 0 deletions

diff --git a/Eigen/Core b/Eigen/Core
index 1c709cad3..f85b22db7 100644
--- a/Eigen/Core
+++ b/Eigen/Core
@@ -337,12 +337,16 @@ inline static const char *SimdInstructionSetsInUse(void) {
 #error Eigen2-support is only available up to version 3.2. Please go to "http://eigen.tuxfamily.org/index.php?title=Eigen2" for further information
 #endif
 
+namespace Eigen {
+
 // we use size_t frequently and we'll never remember to prepend it with std:: everytime just to
 // ensure QNX/QCC support
 using std::size_t;
 // gcc 4.6.0 wants std:: for ptrdiff_t
 using std::ptrdiff_t;
 
+}
+
 /** \defgroup Core_Module Core module
   * This is the main module of Eigen providing dense matrix and vector support
   * (both fixed and dynamic size) with all the features corresponding to a BLAS library