Question

我是使用CGAL库的初学者，我尝试在编译CGAL后在fedora上运行组合图示例qt-creator：

#include <QCoreApplication>

#include <CGAL/Combinatorial_map.h>
#include <iostream>
#include <cstdlib>

typedef CGAL::Combinatorial_map<3> CMap_3;
typedef CMap_3::Dart_const_handle Dart_const_handle;

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    CMap_3 cm;
    // Create two tetrahedra.
    Dart_const_handle dh1 = cm.make_combinatorial_tetrahedron();
    Dart_const_handle dh2 = cm.make_combinatorial_tetrahedron();
    // Display the combinatorial map characteristics.
    cm.display_characteristics(std::cout);
    std::cout<<", valid="<<cm.is_valid()<<std::endl;
    unsigned int res = 0;
    // Iterate over all the darts of the first tetrahedron.
    // Note that CMap_3::Dart_of_orbit_range<1,2> in 3D is equivalent to
    // CMap_3::Dart_of_cell_range<3>.
    for (CMap_3::Dart_of_orbit_range<1,2>::const_iterator
         it(cm.darts_of_orbit<1,2>(dh1).begin()),
         itend(cm.darts_of_orbit<1,2>(dh1).end()); it!=itend; ++it)
      ++res;
    std::cout<<"Number of darts of the first tetrahedron: "<<res<<std::endl;
    res = 0;
    // Iterate over all the darts of the facet containing dh2.
    for (CMap_3::Dart_of_orbit_range<1>::const_iterator
         it(cm.darts_of_orbit<1>(dh2).begin()),
         itend(cm.darts_of_orbit<1>(dh2).end()); it!=itend; ++it)
      ++res;
    std::cout<<"Number of darts of the facet containing dh2: "<<res<<std::endl;

    return a.exec();
}

.pro文件：

QT -= gui

CONFIG += c++11 console
CONFIG -= app_bundle

DEFINES += QT_DEPRECATED_WARNINGS

SOURCES += \
        main.cpp

INCLUDEPATH += /usr/include
LIBS += -lgmp -lmpfr -lCGAL

但显示以下错误：

In file included from /usr/include/c++/7/bits/stl_algo.h:59:0,
                 from /usr/include/c++/7/algorithm:62,
                 from /usr/include/QtCore/qglobal.h:68,
                 from /usr/include/qt5/QtCore/qcoreapplication.h:43,
                 from /usr/include/qt5/QtCore/QCoreApplication:1,
                 from ../untitled/main.cpp:1:
/usr/include/c++/7/cstdlib:75:15: fatal error: stdlib.h: No such file or directory
 #include_next <stdlib.h>

我搜索了这个问题，但没有任何帮助感谢您的帮助谢谢

Answer 1

我通过从.pro文件中删除INCLUDEPATH + = / usr / include解决了它

75:15：致命错误：stdlib.h：没有这样的文件或目录#include_next <stdlib.h>

1 个答案: