A very good day to you.

I installed boost 1.50 installer (32-bit) which downloaded from http://www.boostpro.com/download/ and did the appropriate settings (including CGAL) in Microsoft Visual Studio 2010.

I would like to run the following sample code:

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#include <iostream>

#include <CGAL\Exact_predicates_inexact_constructions_kernel.h>

#include <CGAL\convex_hull_2.h>

typedef CGAL::Exact_predicates_inexact_constructions_kernel K;

typedef K::Point_2 Point_2;

int main()

{

Point_2 points[5] = { Point_2(0, 0), Point_2(10, 0), Point_2(10, 10), Point_2(6, 5), Point_2(4, 1) };

Point_2 result[5];

Point_2 *ptr = CGAL::convex_hull_2( points, points+5, result );

std::cout << ptr - result << " points on the convex hull" << std::endl;

return 0;

}

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There are no errors during compilation but there are errors during the build as shown below:

1>------ Build started: Project: Cgal_Hello, Configuration: Debug Win32 ------

1>libboost_system-vc100-mt-gd-1_50.lib(error_code.obj) : error LNK2005: "public: __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (??0?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAE@ABV01@@Z) already defined in msvcprtd.lib(MSVCP90D.dll)

1>libboost_system-vc100-mt-gd-1_50.lib(error_code.obj) : error LNK2019: unresolved external symbol "__declspec(dllimport) void __cdecl std::_Xout_of_range(char const *)" (__imp_?_Xout_of_range@std@@YAXPBD@Z) referenced in function "public: void __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::_Xran(void)const " (?_Xran@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEXXZ)

1>D:\Cgal_Hello\Debug\Cgal_Hello.exe : fatal error LNK1120: 5 unresolved externals

Can anyone help to solve this issues?

In addition, if I have installed the installer, do I still have to use bjam.exe to build the libraries?

Hope to hear from you soon.

Thank you very much.

Best Regards,

Saw