How to write a makefile for a C++ project which uses Eigen, the C++ template library for linear algebra? -


I am using the Eigen library which promotes the inheritance of matrix operations. I do not know how to use the files given in EEGGenetics and write a messy file. Source files that use Egain include files listed below, are not also header files (they are just some text files) - 

  & lt; Eigen / core & gt; & Lt; Eigen / dense & gt; & Lt; Eigen / Eigen & gt; On EEGGEN's webpage, it has been mentioned that, to use my own works, I do not have to build the project, so I have to make these files for my files. How can I add it to my messyfile? My example main.c file looks like this  How to write makefile messaging for this file  -  
  #include & lt; Eigen / Core & gt; // Import the most common Eigen type USING_PART_OF_NAMESPACE_EIGEN int main (int, char * []) ​​{Matrix3f m3; M3 and LT; & Lt; 1, 2, 3, 4, 5, 6, 7, 8, 9; Matrix 4fm 4 = matrix 4f :: identity (); Vector 4i V4 (1, 2, 3, 4); Std :: cout & lt; & Lt; "M3 \ n" & lt; & Lt; M3 and LT; & Lt; "\ N I'm 4: \ n" & lt; & Lt; M4 and LT; & Lt; "\ N v4: \ n" & lt; & Lt; V4 & lt; & Lt; Std :: endl; }  
 
 Help! According to

, this is a header only library.

This means there is nothing to compile or link to it. Instead, as long as you have header files in a standard location ( / usr / local / include / nix / mac>), you only need to add this location to your preprocessor build phase

Believing that you are running * Nix / Mac and assuming that you have the default location (such as #include in the file Is referred to as code> / usr / local / include / eigen / core ), then a super simple make-up will look like this: 

  main: main.cpp g ++ -i / Usr / local / Main.cpp-o main

includes: in English:

  • depends on main main . >
  • to create main to g ++ ,
  • Output file main ,
  • Looking for any header in the directory / usr / local / include / Know about

Note: g ++ has a tab in Ne, not four spaces

Hope that helps.


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