用CGAL编译一个简单的测试 [英] compile a simple test with CGAL

问题描述

我刚刚在mac系统上安装了brew的CGAL。现在我很兴奋，尝试一个简单和最小的例子。我可以用g ++编译这个示例文件：

  gcc namefile.cpp -lCGAL -I / usr / local / include / CGAL 
  

我遇到了很多错误...（太多，无法粘贴到这里我认为）

作为示例文件我使用

 文件：examples / Arrangement_on_surface_2 / sweep_line.cpp 
 
 
 
 #include< CGAL / Cartesian。 h。 
＃include< CGAL / MP_Float.h> 
 #include< CGAL / Quotient.h> 
 #include< CGAL / Arr_segment_traits_2.h> 
 #include< CGAL / Sweep_line_2_algorithms.h> 
 #include< list> 
 
 typedef CGAL :: Quotient< CGAL :: MP_Float> NT; 
 typedef CGAL :: Cartesian< NT>核心; 
 typedef Kernel :: Point_2 Point_2; 
 typedef CGAL :: Arr_segment_traits_2< Kernel> Traits_2; 
 typedef Traits_2 :: Curve_2 Segment_2; 
 
 int main（）
 {
 //构造输入段。 
 Segment_2 segments [] = {Segment_2（Point_2（1,5），Point_2（8，5）），
 Segment_2（Point_2（1,1），Point_2（8,8）），
 Segment_2（Point_2（3,1），Point_2（3,8）），
 Segment_2（Point_2（8,5），Point_2（8，8））}; 
 
 //计算所有交点。 
 std :: list< Point_2> pts; 
 
 CGAL :: compute_intersection_points（segments，segments + 4，
 std :: back_inserter（pts））; 
 
 //打印结果。 
 std :: cout<< Found< pts.size（）<< 交叉点：< std :: endl; 
 std :: copy（pts.begin（），pts.end（），
 std :: ostream_iterator< Point_2>（std :: cout，\\\
））; 
 
 //计算由输入段引起的不相交的子段。 
 std :: list< Segment_2> sub_segs; 
 
 CGAL :: compute_subcurves（segments，segments + 4，std :: back_inserter（sub_segs））; 
 
 std :: cout<< Found< sub_segs.size（）
<< 内部不相交的子段。 << std :: endl; 
 
 CGAL_assertion（CGAL :: do_curves_intersect（segments，segments + 4））; 
 
 return 0; 
} 
  

EDIT：

 >>> g ++ --version 
 i686-apple-darwin11-llvm-g ++  -  4.2（GCC）4.2.1（基于Apple Inc.构建5658）（LLVM构建2336.11.00）
版权所有免费软件基金会，
这是免费软件;请参阅复制条件的来源。有NO 
 
>>>> g ++ sweep_line.cpp 
在/usr/local/include/CGAL/Bbox_2.h:31中包含的文件中，
来自/usr/local/include/CGAL/basic_classes.h:31，
来自/usr/local/include/CGAL/Cartesian/Cartesian_base.h:29，
来自/usr/local/include/CGAL/Cartesian.h:28，
来自sweep_line.cpp：4： 
 /usr/local/include/CGAL/array.h:81：error：expected'...'之前的嵌套名称说明符标记
 /usr/local/include/CGAL/array.h ：81：error：expected'>'before'...'token 
 /usr/local/include/CGAL/array.h:83：error：模板参数2无效
 / usr / '$'之前的'local'/ local / include / CGAL / array.h：84：error：expected'，'或'...'
 /usr/local/include/CGAL/array.h： int CGAL :: make_array（const T& int）'：
 /usr/local/include/CGAL/array.h:86：error：模板参数2无效
 / usr / local / include /CGAL/array.h:86：error：无效类型在声明之前'='token 
 /usr/local/include/CGAL/array.h:86：error：'args'未在此范围中声明
 /usr/local/include/CGAL/array.h:86：error：expected`}'before'...'token 
 /usr/local/include/CGAL/array.h:86 ：error：expected`}'before'...'token 
 /usr/local/include/CGAL/array.h:86：error：expected'，'或';'before'...' 
 /usr/local/include/CGAL/array.h：在全局范围：
 /usr/local/include/CGAL/array.h:87：error：expected'返回'前的未限定ID 
 /usr/local/include/CGAL/array.h:88：error：预期声明前'}'token 
保修;甚至不适用于适销性或特定用途的适用性。 
 
 
 
>>> g ++ sweep_line.cpp -lCGAL -I / usr / local / include / CGAL 
在/ usr / local中包含的文件/include/CGAL/gmpxx_coercion_traits.h:35，
来自/usr/local/include/CGAL/mpz_class.h:29, 
来自/usr/local/include/CGAL/gmpxx.h:47 ，
从/usr/local/include/CGAL/is_convertible.h:28，
从/usr/local/include/CGAL/Rational_traits.h:31，
从/ usr / local /include/CGAL/number_type_basic.h:65，
来自/usr/local/include/CGAL/basic.h:36，
来自/usr/local/include/CGAL/Cartesian/Cartesian_base.h ：28，
来自/usr/local/include/CGAL/Cartesian.h:28，
来自sweep_line.cpp：4：
 /usr/local/include/mpfr.h:181 ：error：expected';'before'*'token 
 /usr/local/include/mpfr.h:279：error：expected之前的构造函数，析构函数或类型转换
 / usr / local / include / mpfr.h：280：error：expected之前的构造函数，析构函数或类型转换
 /usr/local/include/mpfr.h:281：error：expected constructor，destructor或type转换'int'之前
 /usr/local/include/mpfr.h:282：错误：预期的构造函数，析构函数或类型转换'int'之前
 /usr/local/include/mpfr.h ：283：error：'int'之前的构造函数，析构函数或类型转换
 /usr/local/include/mpfr.h:284：error：在const之前的构造函数，析构函数或类型转换
 /usr/local/include/mpfr.h:286：error：'__GMP_DECLSPEC'没有命名类型
 /usr/local/include/mpfr.h:287：error：expected构造函数，析构函数或类型转换'int'之前
 /usr/local/include/mpfr.h:288：错误：'__GMP_DECLSPEC'不命名类型
 /usr/local/include/mpfr.h:289：错误：'__GMP_DECLSPEC'未命名类型
 /usr/local/include/mpfr.h:290：错误：'__GMP_DECLSPEC'未命名类型
 / usr / local / include / mpfr。 h：291：error：'int'之前的构造函数，析构函数或类型转换
 /usr/local/include/mpfr.h:292：错误：'__GMP_DECLSPEC'未命名类型
 / usr / local / include / mpfr.h：293：错误：'__GMP_DECLSPEC'未命名类型
 /usr/local/include/mpfr.h:295：error：expected构造函数，析构函数或类型转换'void'
 /usr/local/include/mpfr.h:296：error：'__GMP_DECLSPEC'没有命名类型
 /usr/local/include/mpfr.h:297：error：expected构造函数，析构函数或类型转换之前'const'
 /usr/local/include/mpfr.h:300：error：expected之前的构造函数，析构函数或类型转换
 / usr / local /include/mpfr.h:301：error：expected之前的构造函数，析构函数或类型转换
 /usr/local/include/mpfr.h:302：error：expected构造函数，析构函数或类型转换before'void'
 /usr/local/include/mpfr.h:303：error：'void'之前的构造函数，析构函数或类型转换
 /usr/local/include/mpfr.h： 304：错误：'void'之前的构造函数，析构函数或类型转换
  

解决方案

您有两种方法：

1. 允许C ++ 11通过向编译器添加相应的标志（ --std = c ++ 11 或 - std = c ++ 0x ）。


2. 定义 CGAL_CFG_NO_CPP0X_ARRAY ， CGAL_CFG_NO_TR1_ARRAY 和 CGAL_CFG_NO_VARIADIC_TEMPLATES 。注意：在这种情况下，您需要 boost / array.hpp 头。

I have just installed CGAL with brew on a mac system. Now I'm exciting to try it with a simple and minimal example. Ho can I compile it with g++?

I want to compile this sample file with:

gcc namefile.cpp -lCGAL -I/usr/local/include/CGAL

and I get a lot of errors... (too many to paste it here I think)

as example file I'm using

File: examples/Arrangement_on_surface_2/sweep_line.cpp



#include <CGAL/Cartesian.h>
#include <CGAL/MP_Float.h>
#include <CGAL/Quotient.h>
#include <CGAL/Arr_segment_traits_2.h>
#include <CGAL/Sweep_line_2_algorithms.h>
#include <list>

typedef CGAL::Quotient<CGAL::MP_Float>                  NT;
typedef CGAL::Cartesian<NT>                             Kernel;
typedef Kernel::Point_2                                 Point_2;
typedef CGAL::Arr_segment_traits_2<Kernel>              Traits_2;
typedef Traits_2::Curve_2                               Segment_2;

int main()
{
  // Construct the input segments.
  Segment_2 segments[] = {Segment_2 (Point_2 (1, 5), Point_2 (8, 5)),
                          Segment_2 (Point_2 (1, 1), Point_2 (8, 8)),
                          Segment_2 (Point_2 (3, 1), Point_2 (3, 8)),
                          Segment_2 (Point_2 (8, 5), Point_2 (8, 8))};

  // Compute all intersection points.
  std::list<Point_2>     pts;

  CGAL::compute_intersection_points (segments, segments + 4,
                                     std::back_inserter (pts));

  // Print the result.
  std::cout << "Found " << pts.size() << " intersection points: " << std::endl; 
  std::copy (pts.begin(), pts.end(),
             std::ostream_iterator<Point_2>(std::cout, "\n"));

  // Compute the non-intersecting sub-segments induced by the input segments.
  std::list<Segment_2>   sub_segs;

  CGAL::compute_subcurves(segments, segments + 4, std::back_inserter(sub_segs));

  std::cout << "Found " << sub_segs.size()
            << " interior-disjoint sub-segments." << std::endl;

  CGAL_assertion (CGAL::do_curves_intersect (segments, segments + 4));

  return 0;
}

EDIT:

>>> g++ --version
i686-apple-darwin11-llvm-g++-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.11.00)
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO

>>> g++ sweep_line.cpp
In file included from /usr/local/include/CGAL/Bbox_2.h:31,
                 from /usr/local/include/CGAL/basic_classes.h:31,
                 from /usr/local/include/CGAL/Cartesian/Cartesian_base.h:29,
                 from /usr/local/include/CGAL/Cartesian.h:28,
                 from sweep_line.cpp:4:
/usr/local/include/CGAL/array.h:81: error: expected nested-name-specifier before '...' token
/usr/local/include/CGAL/array.h:81: error: expected '>' before '...' token
/usr/local/include/CGAL/array.h:83: error: template argument 2 is invalid
/usr/local/include/CGAL/array.h:84: error: expected ',' or '...' before '&' token
/usr/local/include/CGAL/array.h: In function 'int CGAL::make_array(const T&, int)':
/usr/local/include/CGAL/array.h:86: error: template argument 2 is invalid
/usr/local/include/CGAL/array.h:86: error: invalid type in declaration before '=' token
/usr/local/include/CGAL/array.h:86: error: 'args' was not declared in this scope
/usr/local/include/CGAL/array.h:86: error: expected `}' before '...' token
/usr/local/include/CGAL/array.h:86: error: expected `}' before '...' token
/usr/local/include/CGAL/array.h:86: error: expected ',' or ';' before '...' token
/usr/local/include/CGAL/array.h: At global scope:
/usr/local/include/CGAL/array.h:87: error: expected unqualified-id before 'return'
/usr/local/include/CGAL/array.h:88: error: expected declaration before '}' token
    warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.



>>>g++ sweep_line.cpp -lCGAL -I/usr/local/include/CGAL
In file included from /usr/local/include/CGAL/gmpxx_coercion_traits.h:35,
                 from /usr/local/include/CGAL/mpz_class.h:29,
                 from /usr/local/include/CGAL/gmpxx.h:47,
                 from /usr/local/include/CGAL/is_convertible.h:28,
                 from /usr/local/include/CGAL/Rational_traits.h:31,
                 from /usr/local/include/CGAL/number_type_basic.h:65,
                 from /usr/local/include/CGAL/basic.h:36,
                 from /usr/local/include/CGAL/Cartesian/Cartesian_base.h:28,
                 from /usr/local/include/CGAL/Cartesian.h:28,
                 from sweep_line.cpp:4:
/usr/local/include/mpfr.h:181: error: expected ';' before '*' token
/usr/local/include/mpfr.h:279: error: expected constructor, destructor, or type conversion before 'const'
/usr/local/include/mpfr.h:280: error: expected constructor, destructor, or type conversion before 'const'
/usr/local/include/mpfr.h:281: error: expected constructor, destructor, or type conversion before 'int'
/usr/local/include/mpfr.h:282: error: expected constructor, destructor, or type conversion before 'int'
/usr/local/include/mpfr.h:283: error: expected constructor, destructor, or type conversion before 'int'
/usr/local/include/mpfr.h:284: error: expected constructor, destructor, or type conversion before 'const'
/usr/local/include/mpfr.h:286: error: '__GMP_DECLSPEC' does not name a type
/usr/local/include/mpfr.h:287: error: expected constructor, destructor, or type conversion before 'int'
/usr/local/include/mpfr.h:288: error: '__GMP_DECLSPEC' does not name a type
/usr/local/include/mpfr.h:289: error: '__GMP_DECLSPEC' does not name a type
/usr/local/include/mpfr.h:290: error: '__GMP_DECLSPEC' does not name a type
/usr/local/include/mpfr.h:291: error: expected constructor, destructor, or type conversion before 'int'
/usr/local/include/mpfr.h:292: error: '__GMP_DECLSPEC' does not name a type
/usr/local/include/mpfr.h:293: error: '__GMP_DECLSPEC' does not name a type
/usr/local/include/mpfr.h:295: error: expected constructor, destructor, or type conversion before 'void'
/usr/local/include/mpfr.h:296: error: '__GMP_DECLSPEC' does not name a type
/usr/local/include/mpfr.h:297: error: expected constructor, destructor, or type conversion before 'const'
/usr/local/include/mpfr.h:300: error: expected constructor, destructor, or type conversion before 'void'
/usr/local/include/mpfr.h:301: error: expected constructor, destructor, or type conversion before 'void'
/usr/local/include/mpfr.h:302: error: expected constructor, destructor, or type conversion before 'void'
/usr/local/include/mpfr.h:303: error: expected constructor, destructor, or type conversion before 'void'
/usr/local/include/mpfr.h:304: error: expected constructor, destructor, or type conversion before 'void'

解决方案

You have two ways:

1. Allow C++11 by adding corresponding flag to compiler(--std=c++11 or --std=c++0x).
2. Define CGAL_CFG_NO_CPP0X_ARRAY, CGAL_CFG_NO_TR1_ARRAY and CGAL_CFG_NO_VARIADIC_TEMPLATES. Note: in this case you will need boost/array.hpp header.

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