Menu *Tools* → *Options* → *Projects and Solutions* → *Build and Run* → *MSBuild project build output verbosity*: *Diagnostic*

1. Open the project properties dialog, then choose 

    *Configuration Properties* → *C/C++* → *General*

2. Change the setting for `Suppress Startup Banner` to `No`

3. The `cl` command line(s) will be shown in the output window.


Visual Studio 2008:

Go to menu *Tools* → *Options* then *Project and Solutions* → *Build and Run* section. You have a combo box for verbosity.

C++ compiler option (project properties):

 - Preprocessor - Generate Preprocessed
   File for seeing the translation unit
   as generated by preprocessor
 - Advanced - Show includes - display
   included file names at compiler
   output


If you&#39;re running MSBuild, you can set the /v:diag flag.

In Visual Studio go to your project and right click on it and select properties. In Linker there is a command line option. There you have all the options and you can add your custom ones. Add `/VERBOSE` and when linking Visual Studio will show a lot more information.


There are several ways to construct an immutable list in Scala (see contrived example code below). You can use a mutable ListBuffer, create a `var` list and modify it, use a [tail recursive][1] method, and probably others that I don&#39;t know about.

Instinctively, I use the ListBuffer, but I don&#39;t have a good reason for doing so. Is there a preferred or idiomatic method for creating a list, or are there situations that are best for one method over another?

    import scala.collection.mutable.ListBuffer

    // THESE are all the same as: 0 to 3 toList.
    def listTestA() ={
    	var list:List[Int] = Nil

    	for(i &lt;- 0 to 3) 
            list = list ::: List(i)
    	list
    }


    def listTestB() ={
    	val list = new ListBuffer[Int]()

    	for (i &lt;- 0 to 3) 
            list += i
    	list.toList
    }


    def listTestC() ={
    	def _add(l:List[Int], i:Int):List[Int] = i match {
    		case 3 =&gt; l ::: List(3)
    		case _ =&gt; _add(l ::: List(i), i +1)
    	}
    	_add(Nil, 0)
    }

  [1]: http://en.wikipedia.org/wiki/Tail_call


Preferred way to create a Scala list

Lets say you have this:

    P1 = (x=2, y=50)
    P2 = (x=9, y=40)
    P3 = (x=5, y=20)

Assume that `P1` is the center point of a circle. It is always the same.
I want the angle that is made up by `P2` and `P3`, or in other words the angle that is next to `P1`. The inner angle to be precise. It will always be an acute angle, so less than -90 degrees.

I thought: Man, that&#39;s simple geometry math. But I have looked for a formula for around 6 hours now, and only find people talking about complicated NASA stuff like arccos and vector scalar product stuff. My head feels like it&#39;s in a fridge.

Some math gurus here that think this is a simple problem? I don&#39;t think the programming language matters here, but for those who think it does: java and objective-c.  I need it for both, but haven&#39;t tagged it for these.

How to calculate an angle from three points?

I need to get a hold of every flag, every switch used in the build process by the Visual Studio binaries. I tried to obtain a verbose output by using `vcbuild`, but I wasn&#39;t able. 

What do I have to do to see everything performed by Visual Studio for me? It&#39;s not necessary to obtain the output in the build window. Anywhere would be fine.

How can I make Visual Studio&#39;s build be very verbose?

<p>I need to get a hold of every flag, every switch used in the build process by the Visual Studio binaries. I tried to obtain a verbose output by using <code>vcbuild</code>, but I wasn't able.</p>
<p>What do I have to do to see everything performed by Visual Studio for me? It's not necessary to obtain the output in the build window. Anywhere would be fine.</p>


I picked this up in one of my brief forays to reddit:

&lt;http://www.smallshire.org.uk/sufficientlysmall/2009/07/31/in-c-throw-is-an-expression/&gt;

Basically, the author points out that in C++:

    throw &quot;error&quot;

is an expression. This is actually fairly clearly spelt out in the C++ Standard, both in the main text and the grammar. However, what is not clear (to me at least) is what is the type of the expression? I guessed &quot;`void`&quot;, but a bit of experimenting with g++ 4.4.0 and Comeau yielded this code:

        void f() {
        }
        
        struct S {};
        
        int main() {
        	int x = 1;
        	const char * p1 = x == 1 ? &quot;foo&quot; : throw S();  // 1
        	const char * p2 = x == 1 ? &quot;foo&quot; : f();        // 2
        }

The compilers had no problem with //1 but barfed on //2 because the the types in the conditional operator are different. So the type of a `throw` expression does not seem to be void.

So what is it?

If you answer, please back up your statements with quotes from the Standard. 

----
**This turned out not to be so much about the type of a throw expression as how the conditional operator deals with throw expressions - something I certainly didn&#39;t 
know about before today. Thanks to all who replied, but particularly to David Thornley.**


In C++, if throw is an expression, what is its type?

I understand the need for a virtual destructor. But why do we need a ***pure*** virtual destructor? In one of the C++ articles, the author has mentioned that we use pure virtual destructor when we want to make a class abstract. 

But we can make a class abstract by making any of the member functions as pure virtual. 

So my questions are 
 
1. When do we really make a destructor pure virtual? Can anybody give a good real time example? 

2. When we are creating abstract classes is it a good practice to make the destructor also pure virtual? If yes..then why?




Why do we need a pure virtual destructor in C++?

I&#39;ve the file path. How can I get the MD5 hash of it?


How to get the MD5 hash of a file in C++?

I have a class `B` with a set of constructors and an assignment operator.

Here it is:

    class B
    {
     public:
      B();
      B(const string&amp; s);
      B(const B&amp; b) { (*this) = b; }
      B&amp; operator=(const B &amp; b);

     private:
      virtual void foo();
      // and other private member variables and functions
    };

I want to create an inheriting class `D` that will just override the function `foo()`, and no other change is required.

But, I want `D` to have the same set of constructors, including copy constructor and assignment operator as `B`:

    D(const D&amp; d) { (*this) = d; }
    D&amp; operator=(const D&amp; d);

Do I have to rewrite all of them in `D`, or is there a way to use `B`&#39;s constructors and operator? I would especially want to avoid rewriting the assignment operator because it has to access all of `B`&#39;s private member variables.

How to use base class&#39;s constructors and assignment operator in C++?

A lot of C++ code uses syntactical conventions for marking up member variables. Common examples include

  * m_*memberName* for public members (where public members are used at all)
  * _*memberName* for private members or all members

Others try to enforce using this-&gt;*member* whenever a member variable is used.

In my experience, most larger code bases fail at applying such rules consistently.

In other languages, these conventions are far less widespread. I see it only occasionally in Java or C# code. I think I have never seen it in Ruby or Python code. Thus, there seems to be a trend with more modern languages to not use special markup for member variables.

Is this convention still useful today in C++ or is it just an anachronism. Especially as it is used so inconsistently across libraries. Haven&#39;t the other languages shown that one can do without member prefixes?


Why use prefixes on member variables in C++ classes

Is it possible to find the number of lines of code in an entire solution?  I&#39;ve heard of &lt;a href=&quot;http://www.mztools.com/index.aspx&quot;&gt;MZ-Tools&lt;/a&gt;, but is there an open source equivalent?


How do you count the lines of code in a Visual Studio solution?

What is the difference between just a **Rebuild** and doing a *Clean* + *Build* in Visual Studio 2008?  Is *Clean* + *Build* different then doing *Clean* + *Rebuild*?

Difference between Rebuild and Clean + Build in Visual Studio

After some use Visual Studio 2008 when opening a solution that is checked into Visual Studio Team Foundation will pop up a dialog saying:

&gt; Projects have recently been added to this solution.  Do you want to get them from source control?

This happens every time the solution is loaded (even if no projects have been added).  The only way I have found to remove this minor annoyance is to completely rebuild the SLN file.

Has anyone found a better/simpler way?

Howto resolve... Visual Studio Source Control notification &quot;Projects have recently been added to this solution&quot;

Is there a quick way to find all of the implementations of, not references to, an interface&#39;s method/property/etc?  Here&#39;s some sample code: 

    public class SomeClass : IBaseClass
    {
      public Int32 GetInt()
      {
         return 1;
      }
    }
    
    public interface IBaseClass
    {
      public Int32 GetInt();
    }
    
    public class SomeOtherClass
    {
      IBaseClass _someClass;
      private TestMethod()
      {
        _someClass = new SomeClass();
        _someClass.GetInt();
      }
    }

I want to quickly get to SomeClass.GetInt() while reviewing SomeOtherClass.TestMethod().  If I right click on _someClass.GetInt() and click &#39;Go To Definition&#39;, it takes me to the interface.  If I click &#39;Find All References&#39;, I could potentially see a list of all uses ... not just the classes that implement the GetInt() method.  

Is there a faster way to find this?  Any tips from other developers?  We are using D.I. for most of our dependencies, which means that tracing through deeply nested code takes *forever*.

How do you quickly find the implementation(s) of an interface&#39;s method?

How can I easily duplicate a C#/VB Form in Visual Studio? If I copy &amp; paste in the Solution Explorer, it uses the same class internally and gets messed up. How do you do it? 

How to easily duplicate a Windows Form in Visual Studio?

I want to execute a command from an Ant buildfile, for each file in a directory.  
I am looking for a platform-independent solution.

How do I do this?

*Sure, I could write a script in some scripting language,
but this would add further dependencies to the project.*

Ant: How to execute a command for each file in directory?

You know, the one that outputs this=&gt;

&gt;------ Clean started: Project: Foo.Bar, Configuration: Debug Any CPU ------  
========== Clean: 1 succeeded, 0 failed, 0 skipped ==========

What it is cleaning?

In Visual Studio, what does the &quot;Clean&quot; command do?

We have a multi-module maven project that uses a profile that defines a [buildnumber-maven-plugin][1] to increment a build number and then check it into source control.

If I define the plugin in the parent pom.xml it executes for all the child builds as well.

Here&#39;s my parent pom.xml

    &lt;project xmlns=&quot;http://maven.apache.org/POM/4.0.0&quot; xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot; xsi:schemaLocation=&quot;http://maven.apache.org/POM/4.0.0 
                          http://maven.apache.org/maven-v4_0_0.xsd&quot;&gt;
      &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
      &lt;groupId&gt;com.webwars&lt;/groupId&gt;
      &lt;artifactId&gt;parent&lt;/artifactId&gt;
      &lt;packaging&gt;pom&lt;/packaging&gt;
      &lt;properties&gt;
        &lt;buildNumber.properties&gt;${basedir}/../parent/buildNumber.properties&lt;/buildNumber.properties&gt;
      &lt;/properties&gt;
      &lt;version&gt;1.0-SNAPSHOT&lt;/version&gt;
      &lt;name&gt;Parent Project&lt;/name&gt;
      &lt;profiles&gt;
        &lt;profile&gt;
          &lt;id&gt;release&lt;/id&gt;
          &lt;build&gt;
            &lt;plugins&gt;
              &lt;plugin&gt;
                &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
                &lt;artifactId&gt;maven-compiler-plugin&lt;/artifactId&gt;
                &lt;configuration&gt;
                  &lt;debug&gt;false&lt;/debug&gt;
                  &lt;optimize&gt;true&lt;/optimize&gt;
                &lt;/configuration&gt;
              &lt;/plugin&gt;
              &lt;plugin&gt;
                &lt;groupId&gt;org.codehaus.mojo&lt;/groupId&gt;
                &lt;artifactId&gt;buildnumber-maven-plugin&lt;/artifactId&gt;
                &lt;version&gt;1.0-beta-3&lt;/version&gt;
                &lt;executions&gt;
                  &lt;execution&gt;
                    &lt;phase&gt;validate&lt;/phase&gt;
                    &lt;goals&gt;
                      &lt;goal&gt;create&lt;/goal&gt;
                    &lt;/goals&gt;
                  &lt;/execution&gt;
                &lt;/executions&gt;
                &lt;configuration&gt;
                  &lt;buildNumberPropertiesFileLocation&gt;${buildNumber.properties}&lt;/buildNumberPropertiesFileLocation&gt;
                  &lt;getRevisionOnlyOnce&gt;true&lt;/getRevisionOnlyOnce&gt;
                  &lt;doCheck&gt;false&lt;/doCheck&gt;
                  &lt;doUpdate&gt;false&lt;/doUpdate&gt;
                  &lt;format&gt;{0, number}&lt;/format&gt;
                  &lt;items&gt;
                    &lt;item&gt;buildNumber&lt;/item&gt;
                  &lt;/items&gt;
                &lt;/configuration&gt;
              &lt;/plugin&gt;
              &lt;plugin&gt;
                &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
                &lt;artifactId&gt;maven-scm-plugin&lt;/artifactId&gt;
                &lt;executions&gt;
                  &lt;execution&gt;
                    &lt;phase&gt;install&lt;/phase&gt;
                    &lt;goals&gt;
                      &lt;goal&gt;checkin&lt;/goal&gt;
                    &lt;/goals&gt;
                  &lt;/execution&gt;
                &lt;/executions&gt;
                &lt;configuration&gt;
                  &lt;basedir&gt;${basedir}&lt;/basedir&gt;
                  &lt;includes&gt;buildNumber.properties&lt;/includes&gt;
                  &lt;message&gt;[Automated checkin] of ${basedir} Build version: ${major.version}.${minor.version}.${buildNumber}&lt;/message&gt;
                  &lt;developerConnectionUrl&gt;...&lt;/developerConnectionUrl&gt;
                &lt;/configuration&gt;
              &lt;/plugin&gt;         
            &lt;/plugins&gt;
          &lt;/build&gt;
        &lt;/profile&gt;
      &lt;/profiles&gt;
    
      &lt;modules&gt;
        
        &lt;module&gt;../common&lt;/module&gt;
        &lt;module&gt;../data&lt;/module&gt;
        &lt;module&gt;../client&lt;/module&gt;
        &lt;module&gt;../webplatform&lt;/module&gt;
      &lt;/modules&gt;
     ...
    &lt;/project&gt;


  [1]: http://mojo.codehaus.org/buildnumber-maven-plugin/

Execute Maven plugin goal on parent module, but not on children

I have a project that adds some extensibility to another application through their API. However, I want to be able to use the same project for multiple versions of their application, because most of the code is the same.

However, each version of the application requires a reference to the proper assembly for that version of the software. They load their assemblies into the GAC, so even if I could specify the *version* of the assembly to use based on build configuration I would be fine. Is there a way to do this from inside of VS or do I need an external build tool?

Is there a way to specify assembly references based on build configuration in Visual Studio?

We have several build machines, each running a single TeamCity build agent. Each machine is very strong, and we&#39;d like to run several build agents on the same machine.

Is this possible, **without using virtualization**? Are there quality alternatives to TeamCity that support this? 

Content Type	Original Author	Original Content on Stackoverflow
Question	Geo	View Question on Stackoverflow
Solution 1 - C++	Sam Harwell	View Answer on Stackoverflow
Solution 2 - C++	Tim Dowty	View Answer on Stackoverflow
Solution 3 - C++	Cătălin Pitiș	View Answer on Stackoverflow
Solution 4 - C++	Joe	View Answer on Stackoverflow
Solution 5 - C++	javier-sanz	View Answer on Stackoverflow

How can I make Visual Studio's build be very verbose?

C++ Problem Overview

C++ Solutions

Solution 1 - C++

Solution 2 - C++

Solution 3 - C++

Solution 4 - C++

Solution 5 - C++

How to calculate an angle from three points?

Preferred way to create a Scala list

Attributions