From Jonathan Wakely a better option (works on clang too):

    g++ -E -x c++ - -v &lt; /dev/null 
    clang++ -E -x c++ - -v &lt; /dev/null

I noticed there&#39;s a flag in cpp for specifying language. This works like a charm.

    cpp -xc++ -v &lt; /dev/null


    #include &quot;...&quot; search starts here:
    #include &lt;...&gt; search starts here:
     /usr/local/Cellar/gcc/4.7.0/gcc/lib/gcc/x86_64-apple-darwin11.4.0/4.7.0/../../../../include/c++/4.7.0
     /usr/local/Cellar/gcc/4.7.0/gcc/lib/gcc/x86_64-apple-darwin11.4.0/4.7.0/../../../../include/c++/4.7.0/x86_64-apple-darwin11.4.0
     /usr/local/Cellar/gcc/4.7.0/gcc/lib/gcc/x86_64-apple-darwin11.4.0/4.7.0/../../../../include/c++/4.7.0/backward
     /usr/local/Cellar/gcc/4.7.0/gcc/lib/gcc/x86_64-apple-darwin11.4.0/4.7.0/include
     /usr/local/include
     /usr/local/Cellar/gcc/4.7.0/gcc/include
     /usr/local/Cellar/gcc/4.7.0/gcc/lib/gcc/x86_64-apple-darwin11.4.0/4.7.0/include-fixed
     /usr/include
     /System/Library/Frameworks
     /Library/Frameworks
    End of search list.

Just noticed that it is important for the `-x c++ to be -xc++` on gcc 4.2

I want to use parameter in filter, when I iterate some arrays with ng-repeat

Example:

HTML-Part:

    &lt;tr ng-repeat=&quot;user in users | filter:isActive&quot;&gt;

JavaScript-part:

    $scope.isActive = function(user) {
        return user.active === &quot;1&quot;;
    };

But I want to be able to use filter like

    &lt;tr ng-repeat=&quot;user in users | filter:isStatus(&#39;4&#39;)&quot;&gt;

But its not working. How can I do something like that?



How to use parameters within the filter in AngularJS?

I am trying to `diff` my local file with a GitHub repository before I submit a pull request, so I can see what will show up. Is there an accurate way of doing this?

I assume GitHub&#39;s compare tool manipulates Git&#39;s `diff`.




&#39;git diff&#39; between a remote and local repository

I&#39;m trying to write a little build script, and want to determine if the includes are system includes or not. So I want __g++__ to tell me the include path&#39;s it&#39;s using. 

`cpp -v` seems the obvious best shot, but it doesn&#39;t give me the C++ paths.

So I tried:
 
    g++ -Xpreprocessor -v  

Which doesn&#39;t work quite right - __g++__ captures the `-v` for it&#39;s own verbose output.



Dump include paths from g++

I'm trying to write a little build script, and want to determine if the includes are system includes or not. So I want g++ to tell me the include path's it's using.
<code>cpp -v</code> seems the obvious best shot, but it doesn't give me the C++ paths.
So I tried:
<pre><code class="hljs">g++ -Xpreprocessor -v 
</code></pre>
Which doesn't work quite right - g++ captures the <code>-v</code> for it's own verbose output.

For Linux this would give me `/`, for Windows on the C drive that would give me `C:\\`. Note that python is not necessarily installed on the C drive on windows.

A system independent way using python to get the root directory/drive on which python is installed

I have a csh script (although I can change languages if it has any relevance) where I have to:

    sed s/AAA/BBB/ file

The problem is that AAA and BBB are paths, and so contain &#39;/&#39;. AAA is fixed, so I can say:

    sed s/\\\/A\\\/A\\\A/BBB/ file

However, BBB is based on variables, including $PWD. How do I escape the &#39;/&#39; in $PWD?

OR is there some other way I should be doing this entirely?

How to replace a path with another path in sed?

So, an *absolute path* is a way to get to a certain file or location describing the full route to it, the full path, and it&#39;s OS dependent (the absolute paths for Windows and Linux, for example, are different). A *relative path*, on the other hand, is a route to a file or location which is described from the current location `..` (two dots) indicating a superior level in the directories tree. That has been clear to me for several years now.

When searching I&#39;ve even seen that there are canonicalized files too!
All I know is that CANONICAL means something like &quot;according to the rules&quot; or something.

Can somebody enlighten me in therms of theory about canonical stuff?

What&#39;s a &quot;canonical path&quot;?

I&#39;m looking for something like `git list-path` printing the
path of the associated repository (the `.git` directory).

A bit of background: I have set up git version control on quite a few of my
projects/folders.  Some of them are nested, so one directory with echo own repository is a subfolder to another directory tracked with another repository. 

 E.g. in my home directory (`~`) I use git to track my dot files, but
in folder `~/photo/meta-mix/` I have another project I track with a
separate repository. Now, say,I have set up another project in directory
`~/photo/meta-match/`, but I don&#39;t know anymore whether it has its own
repository. So I want to find out whether this directory is version
controlled and where its repository is.

How can I do this with a git command? `git status` can give me 

    nothing to commit

in *both* cases, when `~/photo/meta-match/` has its own repository or when it just refers to the repository of `~`. 

How to find the path of the local git repository when I am possibly in a subdirectory

I am working on a media player in C# but when I want to make my test I have a problem.

I have to create a new object song with the following path:

    @&quot;C:\Users\Jesus Antonio\Desktop\JukeboxV2.0\JukeboxV2.0\Datos\ich will.mp3&quot;

It works but when I change the computer I have to rewrite the entire path, 
My project is called JukeboxV2.0

In java I remember you can just write the path for example

    @&quot;JukeboxV2.0\JukeboxV2.0\Datos\ich will.mp3&quot;

This will save a lot of time because I can take my project to different computers and it works, but here I don&#39;t known how to do that, anyone know?

File path for project files?

 - What should I include in C++ programs, `stdio.h` or `cstdio`? and Why?       
 - Why two header files which provide the same functionality?     
 - What does the standard say regarding this?              
 - How should I go about including other such headers, Is there a base rule that I should follow?

Should I include &lt;xxxx.h&gt; or &lt;cxxxx&gt; in C++ programs?

I’m trying to include an HTML snippet inside of an `ng-repeat`, but I can’t get the include to work. It seems the current syntax of `ng-include` is different than what it was previously: I see many examples using

    &lt;div ng-include src=&quot;path/file.html&quot;&gt;&lt;/div&gt;

But in the [official docs][1], it says to use

    &lt;div ng-include=&quot;path/file.html&quot;&gt;&lt;/div&gt;

But then [down the page][2] it is shown as

    &lt;div ng-include src=&quot;path/file.html&quot;&gt;&lt;/div&gt;

Regardless, I tried

&lt;!-- language: lang-html --&gt;

    &lt;div ng-include=&quot;views/sidepanel.html&quot;&gt;&lt;/div&gt;

&lt;!-- language: lang-html --&gt;

    &lt;div ng-include src=&quot;views/sidepanel.html&quot;&gt;&lt;/div&gt;

&lt;!-- language: lang-html --&gt;

    &lt;ng-include src=&quot;views/sidepanel.html&quot;&gt;&lt;/ng-include&gt;

&lt;!-- language: lang-html --&gt;

    &lt;ng-include=&quot;views/sidepanel.html&quot;&gt;&lt;/ng-include&gt;

&lt;!-- language: lang-html --&gt;

    &lt;ng:include src=&quot;views/sidepanel.html&quot;&gt;&lt;/ng:include&gt;

My snippet is not very much code, but it’s got a lot going on; I read in [Dynamically load template inside `ng-repeat`][3] that that could cause a problem, so I replaced the content of `sidepanel.html` with just the word `foo`, and still nothing.

I also tried declaring the template directly in the page like this:

    &lt;script type=&quot;text/ng-template&quot; id=&quot;tmpl&quot;&gt;
        foo
    &lt;/script&gt;

And running through all the variations of `ng-include` referencing the script’s `id`, and still nothing.

My page had a lot more in it, but now I’ve stripped it down to just this:

    &lt;!-- index.html --&gt;
    &lt;html&gt;
    &lt;head&gt;
    &lt;!-- angular includes --&gt;
    &lt;/head&gt;
    &lt;body ng-view=&quot;views/main.html&quot;&gt; &lt;!-- view is actually set in the router --&gt;
        &lt;!-- views/main.html --&gt;
        &lt;header&gt;
            &lt;h2&gt;Blah&lt;/h2&gt;
        &lt;/header&gt;
        &lt;article id=&quot;sidepanel&quot;&gt;
            &lt;section class=&quot;panel&quot;&gt; &lt;!-- will have ng-repeat=&quot;panel in panels&quot; --&gt;
                &lt;div ng-include src=&quot;views/sidepanel.html&quot;&gt;&lt;/div&gt;
            &lt;/section&gt;
        &lt;/article&gt;
    &lt;!-- index.html --&gt;
    &lt;/body&gt;
    &lt;/html&gt;

The header renders, but then my template doesn’t. I get no errors in the console or from Node, and if I click the link in `src=&quot;views/sidepanel.html&quot;` in dev tools, it takes me to my template (and displays `foo`).


  [1]: https://code.angularjs.org/1.1.0/docs/api/ng.directive:ngInclude#Usage
  [2]: https://code.angularjs.org/1.1.0/docs/api/ng.directive:ngInclude#Example
  [3]: https://stackoverflow.com/questions/12361680/

What is the correct syntax of ng-include?

I am trying to use a C library in an Objective-C Xcode project. 

The libraries directory structure is as follows:

    -- include/
        |-- config.h
        |-- lib/
        |    |-- file1.h
        |    |-- file2.h
        |    |-- file3.h

The library&#39;s docs say to include file1.h, and file1.h includes file2.h and file3.h.

I am getting &quot;file not found&quot; errors for the includes of file2.h and file3.h`. 
They are included by file1.h in the following manner:

    #include &lt;lib/file1.h&gt;
    #include &lt;lib/file2.h&gt;

I read [here](http://msdn.microsoft.com/en-us/library/36k2cdd4(v=vs.80).aspx) that these angle-brackets instruct the preprocessor to search for include files along the path specified by the INCLUDE environment variable, as opposed to searching in the same directory as the file that contains the #include. 

So I added the INCLUDE environment variable in Xcode by going to Product-&gt;Edit Scheme.. and set it to `/the-whole-path-to/include/` however, I am still getting the file not found errors.

The files are successfully included if I change file1.h to include them like this:

    #include &quot;file2.h&quot;

but I&#39;d rather not do that for every file in the library. 

How can I fix this?

How to set include path in xcode project

It seems that there are two methods for templating with JSP. Including files with one of these statements 

    &lt;%@ include file=&quot;foo.html&quot; %&gt;
    &lt;jsp:include page=&quot;foo.html&quot; /&gt;

or using JSP tag files 

    // Save this as mytag.tag
    &lt;%@ tag description=&quot;Description&quot; pageEncoding=&quot;UTF-8&quot;%&gt;
    &lt;html&gt;
    &lt;head&gt;
    &lt;/head&gt;
    &lt;body&gt;
        &lt;jsp:doBody/&gt;
    &lt;/body&gt;
    &lt;/html&gt;

And in another JSP page call it with

    &lt;%@ taglib prefix=&quot;t&quot; tagdir=&quot;/WEB-INF/tags&quot; %&gt;
        
    &lt;t:mytag&gt;
        &lt;h1&gt;Hello World&lt;/h1&gt;
    &lt;/t:mytag&gt;

So which method should I use? Is one now considered deprecated or are they both valid and cover different use cases?

**Edit**

Isn&#39;t using this tag file the same as using an include?

    // Save this as product.tag
    &lt;%@ tag description=&quot;Product templage&quot; pageEncoding=&quot;UTF-8&quot;%&gt;
    &lt;%@ tag import=&quot;com.myapp.Product&quot; %&gt;
    &lt;%@ attribute name=&quot;product&quot; required=&quot;true&quot; type=&quot;com.myapp.Product&quot;%&gt;
    
    Product name: ${product.name} &lt;br/&gt;
    Quantity: ${product.quantity} &lt;br/&gt;

And call it on another JSP with

    &lt;%@ taglib prefix=&quot;t&quot; tagdir=&quot;/WEB-INF/tags&quot; %&gt;
    
    &lt;t:product&gt;
        &lt;c:forEach items=&quot;${cart.products}&quot; var=&quot;product&quot;&gt;
            &lt;t:product product=&quot;${product}&quot;/&gt;
        &lt;/c:forEach&gt;
    &lt;/t:product&gt;

That seems to me to be the very same as using an include and passing parameters to it. So are Tag Files the same as includes?

What&#39;s the difference between including files with JSP include directive, JSP include action and using JSP Tag Files?

**How can I include WordPress functions in a custom .php file?**

In detail: I have a directory under my theme (Constructor) named reports. These contain .php files that generate reports from data from the site with DOMPDF for downloading. For these I would like to use functions that the WordPress engine provides, for example `get_the_author_meta( &#39;user_firstname&#39;, $user_id )`. If I use these i get (naturally) the following error:

&gt; Fatal error: Call to undefined function get_the_author_meta() in ROOT/public_html/wp-content/themes/constructor/reports/testreport.php on line 15

I was lead to believe that I need to include wp-blog-header.php . I use `require_once(&quot;../../../../wp-blog-header.php&quot;);` . With this I get the following 404 error:

&gt; No webpage was found for the web address: ROOT/wp-content/themes/constructor/reports/testreport.php

(The require points to the correct path. If I fiddle with it, I get Warning: require_once(../../../wp-blog-header.php): failed to open stream... So the path must be correct.)

Is there something I overlook? Why can&#39;t I include this wp file? What is the correct method to include the wp functions? 

Thanks for the help, Sziro

How to include WordPress functions in custom .php file?

I was writing some code today and got a weird compile error, which seems to be caused by initializing member variables in a different order than they were declared.

Example:

    class Test {
        int a;
        int b;
    
    public:
        Test() : b(1), a(2) {
        }
    };
    
    int main() {
        Test test;
        return 0;
    }

Then if I compile it with `-Werror -Wall`:

    $ g++ -Werror -Wall test.cpp
    test.cpp: In constructor ‘Test::Test()’:
    test.cpp:3:9: error: ‘Test::b’ will be initialized after [-Werror=reorder]
    test.cpp:2:9: error:   ‘int Test::a’ [-Werror=reorder]
    test.cpp:6:5: error:   when initialized here [-Werror=reorder]
    cc1plus: all warnings being treated as errors

I realize that `-Wall` is explicitly asking GCC to go over-the-top with warnings, but I assume there&#39;s a reason for all of them. So, how could the order of initializing member variables matter?

Why should I initialize member variables in the order they&#39;re declared in?

I compiled and installed openCV 2.4.2 in ubuntu 12.04. Under `/usr/local/include` I can see the directories `/usr/local/opencv` and `/usr/local/opencv2`.

Here is the code I wrote:


    #include &lt;cv.h&gt;
    #include &lt;highgui.h&gt;
    #include &lt;iostream&gt;
    using namespace cv;
    using namespace std;
    int main(int argc,char **argv)
    {
       Mat image;
       image = imread(argv[1],1);

       if(argc != 2 || !image.data)
       {
           cout &lt;&lt; &quot;No image data\n&quot;;
           return -1;
       }

       namedWindow(&quot;Display Image&quot;,CV_WINDOW_AUTOSIZE);
       imshow(&quot;Display Image&quot;,image);
       waitKey(0);
       return 0;
    }

I compiled it using this command line:

    g++ DisplayImage.cpp -o DisplayImage `pkg-config opencv --cflags --libs` 

There were no compile time errors, however when I try to run the resulting binary with `/DisplayImage code.png` I get the following error message:

    ./DisplayImage: error while loading shared libraries: libopencv_core.so.2.4: cannot open shared object file: No such file or directory


openCV program compile error &quot;libopencv_core.so.2.4: cannot open shared object file: No such file or directory&quot; in ubuntu 12.04

Is there any way to get back the mangled name from demangled name in g++.

For example , I have the demangled name `func(char*, int)`, what should I do to get the mangled name i.e `_Z4funcPci` back? 

My question is g++ specific.

Getting mangled name from demangled name

I have a project (a library) that is subdivided into a few directories with code in them. I&#39;d like to to have g++ search for header files in the project&#39;s root directory, so I can avoid different include paths for same header files across multiple source files.

Mainly, the `root/` directory has sub-directories `A/`, `B/` and `C/`, all of which have `.hpp` and `.cpp` files inside. If some source file in A wanted to include `file.hpp`, which was in B, it would have to do it like this: `#include &quot;../B/file.hpp&quot;`. Same for another source file that was in C. But, if A itself had sub-directories with files that needed `file.hpp`, then, it would be inconsistent and would cause errors if I decided to move files (because the include path would be `&quot;../../B/file.hpp&quot;`).

Also, this would need to work from other projects as well, which reside outside of `root/`. I already know that there is an option to manually copy all my header files into a default-search directory, but I&#39;d like to do this the way I described.

**Edit:** all programs using the library must compile only with `g++ prog.cpp lib.a -o prog`. That means *permanently* setting the include path for g++!

How to make g++ search for header files in a specific directory?

I am [&#128542;](http://www.fileformat.info/info/unicode/char/1f61e/index.htm) to find that I cannot use [&#128515;](http://www.fileformat.info/info/unicode/char/1f603/index.htm) as a valid identifier with g++ 4.7, even with the `-fextended-identifiers` option enabled:

    int main(int argc, const char* argv[])
    {
      const char* &#128515; = &quot;I&#39;m very happy&quot;;
      return 0;
    }

&gt; main.cpp:3:3: error: stray ‘\360’ in program &lt;br/&gt;
main.cpp:3:3: error: stray ‘\237’ in program &lt;br/&gt;
main.cpp:3:3: error: stray ‘\230’ in program &lt;br/&gt;
main.cpp:3:3: error: stray ‘\203’ in program

After some googling, I discovered that [UTF-8 characters are not yet supported in identifiers](http://gcc.gnu.org/wiki/FAQ#What_is_the_status_of_adding_the_UTF-8_support_for_identifier_names_in_GCC.3F), but a *universal-character-name* should work. So I convert my source to:

    int main(int argc, const char* argv[])
    {
      const char* \U0001F603 = &quot;I&#39;m very happy&quot;;
      return 0;
    }

&gt; main.cpp:3:15: error: universal character \U0001F603 is not valid in an identifier

So apparently &#128515; isn&#39;t a valid identifier character. However, the standard specifically allows characters from the range `10000-1FFFD` in Annex E.1 and doesn&#39;t disallow it as an initial character in E.2.

My next effort was to see if any other allowed Unicode characters worked - but none that I tried did. Not even the ever important [PILE OF POO (&#128169;)](http://www.fileformat.info/info/unicode/char/1f4a9/index.htm) character.

So, for the sake of meaningful and descriptive variable names, what gives? Does `-fextended-identifiers` do as it advertises or not? Is it only supported in the very latest build? And what kind of support do other compilers have?





&#128515; (and other Unicode characters) in identifiers not allowed by g++

I have the following project structure

 

    --&gt;Starnderd Location
            --&gt;Project1 
               --&gt;settings.gradle 
               --&gt;build.gradle
               --&gt;Subproject11
                  --&gt;build.gradle
               --&gt;Subproject12
                  --&gt;build.gradle
            --&gt;Project2 
               --&gt;settings.gradle 
               --&gt;build.gradle
               --&gt;Subproject21
                  --&gt;build.gradle
               --&gt;Subproject22
                  --&gt;build.gradle
            --&gt;build.gradle
            --&gt;settings.gradle


Idea of above project structure is that we have multiple projects which contains subprojects, each project can have dependencies to other projects. Also subprojects inside the project can have dependencies to other subprojects within the same project. Projects will be specified in the settings.gradle in the root. Also settings.gradle  inside each project will say what are the subprojects of that particular project. 


My settings.gradle in the root would looks like

    include &#39;Project1&#39;,
             &#39;Project2&#39;

and Project1 settings.gradle will looks like

    include &#39;SubProject11&#39;
             &#39;SubProject12&#39;

other dependency orders are defined in the respective build.gradle files
If I rand gradle clean build install inside the root location(Standar location) it doesn&#39;t seems to use configurations in the Project level settings.gradle file.

What I&#39;m doing here wrong?

Multiple settings gradle files for multiple projects building

In Jenkins, is there a way to give different timeouts to each or selected build step?  
Build-time plugin out gives functionality of timeout &quot;Abort the build if it&#39;s stuck&quot; on complete project, what I need is to give different timeouts for each step. This way I can make my process more efficient.

Timeout on a Build Step of Jenkins

I&#39;m trying to use Grunt as a build tool for my webapp.

I want to have at least two setups: 

**I. Development setup** - load scripts from separate files, without concatenation,

so my index.html would look something like:

    &lt;!DOCTYPE html&gt;
    &lt;html&gt;
        &lt;head&gt;
            &lt;script src=&quot;js/module1.js&quot; /&gt;
            &lt;script src=&quot;js/module2.js&quot; /&gt;
            &lt;script src=&quot;js/module3.js&quot; /&gt;
            ...
        &lt;/head&gt;
        &lt;body&gt;&lt;/body&gt;
    &lt;/html&gt;

**II. Production setup** - load my scripts minified &amp; concatenated in one file,

with index.html accordingly:

    &lt;!DOCTYPE html&gt;
    &lt;html&gt;
        &lt;head&gt;
            &lt;script src=&quot;js/MyApp-all.min.js&quot; /&gt;
        &lt;/head&gt;
        &lt;body&gt;&lt;/body&gt;
    &lt;/html&gt;

The question is, *how can I make grunt make these index.html&#39;s depending on the configuration when I run `grunt dev` or `grunt prod`?*

Or maybe I&#39;m digging in the wrong direction and it would be easier to always generate `MyApp-all.min.js` but put inside it either all my scripts (concatenated) or a loader script that asynchronously loads those scripts from separate files?

How do you do it, guys?

Have Grunt generate index.html for different setups

I have a the following structure:

    src/
        modules/
            module1/
                js/
                    main.js
                scss/
                    main.scss
                index.html
            module2/
                js/
                    main.js
                scss/
                    main.scss
                index.html

I&#39;d like to run a grunt task to copy these out to the following structure:

    dev/
        js/
            module1.js
            module2.js
        css/
            module1.css
            module2.css
        module1.html
        module2.html

Is there a way to do this with an existing grunt plugin? If not, how could I achieve this?

How can I rename files with Grunt, based on the respective file&#39;s parent folder name?

We are doing a web application with AngularJS and we like the idea of using Bower for Dependency Management and Grunt for building, running tests etc. ([Yeoman](http://yeoman.io/))

The server is done with Java using Maven, so of course we would like with a simple `mvn install` build everything (web application + server)

So what approach you took and why?

1) Treat them as two different applications, which in fact they are. So using different building methods/tools is acceptable.

2) Forget about Grunt Bower, use Maven plugins to build, run tests, manage dependencies for the web application. If that is the case, which ones?

3) Use Maven exec plugin to call Grunt to build the front-end webapp. I see this more as a hack than a solution.

4) Other.

Approach easier to integrate with Jenkins is a plus.

Thanks in advance!

Content Type	Original Author	Original Content on Stackoverflow
Question	Oliver	View Question on Stackoverflow
Solution 1 - Path	Oliver	View Answer on Stackoverflow

Dump include paths from g++

Path Problem Overview

Path Solutions

Solution 1 - Path

'git diff' between a remote and local repository

How to use parameters within the filter in AngularJS?

Attributions