编译错误：致命错误：找不到'boost / numeric / ublas / matrix.hpp'文件

Question

These are the header files and libraries

#include <iostream>
#include <algorithm>
#include <stdio.h>
#include <math.h>
#include <vector>
#include <numeric>
#include <strings.h>
#include <assert.h>

#include <dirent.h>


#include <boost/numeric/ublas/matrix.hpp>
#include <boost/numeric/ublas/io.hpp>

#include <boost/geometry.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
#include <boost/geometry/geometries/polygon.hpp>
#include <boost/geometry/geometries/adapted/c_array.hpp>


#include "mail.h"

I am trying to compile this c++ file I got using

g++ -O3 -DNDEBUG -o evaluate_object evaluate_object.cpp

The compile output

evaluate_object.cpp:13:10: fatal error: 'boost/numeric/ublas/matrix.hpp' file
      not found
#include <boost/numeric/ublas/matrix.hpp>
         ^
1 error generated.

Ps: I run on macos sierra 10.12 I have tried install boost by these ways:

• sudo port install boost
• brew install boost
• sudo port install boost +universal

But I still got the same problem. I would be happy to get out of this noob zone. I am a macos newbie too.

Answer 1

It seems that your "boost" includes directory is not present within environment defined include directories. You might want to specify one by passing "-I" argument to g++ command, ie

g++ -O3 -DNDEBUG -I/usr/local/Cellar/blahblah -o evaluate_object evaluate_object.cpp

Also your code is incomplete and perhaps if you actually call some of the boost functions you might need to add some objects for linking and then you will face "undefined reference to" error. To overcome such you need to specify "-L" flag for your g++ command.