compile with terminal from MyProject folder

[flex567]

my folder structure looks like this:

         
                    MyProject 
            |                           |
         header                        source
            |                           |
       Dog.h,Functions.h     Functions.cpp, Dog.cpp, main.cpp

How can I compile and run this program (what do I have to type in terminal) - I would like to compile and run it from MyPoject's directory

cd MyProject

?

[2kaud]

and your compiler is ?

[flex567]

gcc

[laserlight]

I would expect something like this:

g++ -Wall -o myproject source_files/functions_cpp.cpp source_files/main.cpp

Of course, you might specify more than just -Wall, e.g., -pedantic -std=c++11. You might also specify some higher optimisation level, e.g., -O2. For more details, read the GCC online documentation.

[flex567]

I would expect something like this:

g++ -Wall -o myproject source_files/functions_cpp.cpp source_files/main.cpp

Of course, you might specify more than just -Wall, e.g., -pedantic -std=c++11. You might also specify some higher optimisation level, e.g., -O2. For more details, read the GCC online documentation.

This doesn't work.

Afer this command that you suggested

g++ -o myproject source/functions.cpp source/main.cpp

I get this error:

source/functions.cpp:1:17: fatal error: test.h: No such file or directory
 #include"test.h"
                 ^
compilation terminated.
source/main.cpp:2:18: fatal error: test.h: No such file or directory
 #include "test.h"
                  ^
compilation terminated.

[Philip Nicoletti]

You need to specify where the headers are located (looking at the help for gcc would show this):

g++ -Wall -o myproject -Iheader source_files/functions_cpp.cpp source_files/main.cpp

[flex567]

-Iheader = -IMyProject/header

or just

-Iheader = -Iheader


I tried both and none worked.

[Philip Nicoletti]

-Iheader

Are you getting the same errors ? What operating system are you using ? On Linux systems, filenames are case sensitive.

[flex567]

the command and the error:

g++ -Wall -o myproject -Iheader source/Functions.cpp source/Dog.cpp source/main.cppsource/Functions.cpp:1:23: fatal error: Functions.h: No such file or directory
 #include "Functions.h"
                       ^
compilation terminated.
source/Dog.cpp:3:15: error: expected initializer before ‘Bark’
 void Dog::Dog Bark(){
               ^
source/main.cpp:3:23: fatal error: Functions.h: No such file or directory
 #include "Functions.h"
                       ^
compilation terminated.

[Philip Nicoletti]

from the MyProject folder, can you do the following command and copy/paste the output ?

ls -alR

[flex567]

ls -alR 
.:
total 16
drwxrwxr-x 4 prog prog 4096 Apr  7 16:24 .
drwxr-xr-x 3 prog prog 4096 Apr  6 17:06 ..
drwxrwxr-x 2 prog prog 4096 Apr  7 17:17 header
drwxrwxr-x 2 prog prog 4096 Apr  7 17:17 source

./header:
total 16
drwxrwxr-x 2 prog prog 4096 Apr  7 17:17 .
drwxrwxr-x 4 prog prog 4096 Apr  7 16:24 ..
-rw-rw-r-- 1 prog prog   91 Apr  7 17:03 Dog.h
-rw-rw-r-- 1 prog prog   94 Apr  7 17:15 Funcitions.h

./source:
total 20
drwxrwxr-x 2 prog prog 4096 Apr  7 17:17 .
drwxrwxr-x 4 prog prog 4096 Apr  7 16:24 ..
-rw-rw-r-- 1 prog prog   76 Apr  7 17:13 Dog.cpp
-rw-rw-r-- 1 prog prog  167 Apr  7 17:17 Functions.cpp
-rw-rw-r-- 1 prog prog  117 Apr  7 17:16 main.cpp

[Philip Nicoletti]

You missed typed the name in the header folder:

Funcitions.h

[flex567]

oh, I see. I thought something was wrong with the command.

[flex567]

If I would have another folder 'resources' and inside this folder would be text.txt and in my code would be ifstream IN(path).
What should I put in my string variable path to link the IN object to the text file? My source code is in the source folder and text.txt is in resources folder and everything is in the MyProject folder.

[Philip Nicoletti]

It depends on where you execute the executable from (and maybe even if you execute from an IDE or not).

If you execute from the terminal in the MyProject folder it would probably be:

ifstream in("resources/text.txt");

if you execute from the folder above MyProject, it would probably be:

ifstream in("MyProject/resources/text.txt");

One method would be to obtain the executable name from argv[0] and
parse it to get the folder that the executable resides in.