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[Quan <>]

I create a Console Application in VS 2008, than copy this code into the cpp
file,
everything is ok:

#include<boost/shared_ptr.hpp>

#include<CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include<CGAL/Polygon_2.h>
#include<CGAL/create_straight_skeleton_2.h>

----------------------------------------------------
but when I create a application with MFC Application and copy these codes to
the stdafax.h and compile, there are some errors:

c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(79) : error C2589: '(' 
:
illegal token on right side of '::'
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(79) : error C2059:
syntax error : '::'
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(117) : error C2589: '('
: illegal token on right side of '::'
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(117) : error C2059:
syntax error : '::'
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(118) : error C2589: '('
: illegal token on right side of '::'
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(118) : error C2059:
syntax error : '::'
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(120) : error C2065: 'u'
: undeclared identifier
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(120) : error C2065: 'l'
: undeclared identifier
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(121) : error C2065: 'l'
: undeclared identifier
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(121) : error C2065: 'u'
: undeclared identifier
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(162) : error C2589: '('
: illegal token on right side of '::'
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(162) : error C2059:
syntax error : '::'
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(163) : error C2589: '('
: illegal token on right side of '::'
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(163) : error C2059:
syntax error : '::'
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(211) : error C2589: '('
: illegal token on right side of '::'
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(211) : error C2059:
syntax error : '::'
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(214) : error C2589: '('
: illegal token on right side of '::'
c:\program files\cgal-3.4\include\cgal\core_bigfloat.h(214) : error C2059:
syntax error : '::'

why?