Use <cfloat> more consistently instead of <float.h>.

Number_types/include/CGAL/FPU.h

@@ -49,10 +49,10 @@ extern "C" {
      // GCC seems to remove (fixincludes) read_rnd/write_rnd...
 #    include "/usr/include/float.h"
 #  else
-#    include <float.h>
+#    include <cfloat>
 #  endif
 #elif defined __BORLANDC__
-#  include <float.h>
+#  include <cfloat>
 #elif defined _MSC_VER || defined __sparc__ || \
      (defined __i386__ && !defined __PGI && !defined __SUNPRO_CC)
    // Nothing to include.

Number_types/include/CGAL/double.h

@@ -33,7 +33,7 @@
 
 
 #ifdef _MSC_VER
-#include <float.h>
+#include <cfloat>
 #endif
 
 #ifdef CGAL_CFG_IEEE_754_BUG

Stream_lines_2/include/CGAL/Triangular_field_2.h

@@ -23,8 +23,8 @@
 #include <CGAL/Delaunay_triangulation_2.h>
 #include <CGAL/Polygon_2_algorithms.h>
 
-#include <float.h>
-#include <stdlib.h>
+#include <cfloat>
+#include <cstdlib>
 
 #include <iostream>
 #include <fstream>

Timer/include/CGAL/Real_timer.h

@@ -27,7 +27,7 @@
 
 #include <CGAL/basic.h>
 // For the numerical limits
-#include <float.h>
+#include <cfloat>
 
 CGAL_BEGIN_NAMESPACE
 

Timer/src/CGAL/Timer.cpp

@@ -50,7 +50,7 @@
 #endif //  CGAL__GETRUSAGE //
 
 // For the numerical limits
-#include <float.h>
+#include <cfloat>
 
 
 CGAL_BEGIN_NAMESPACE