hello, world

From this link:

A "hello world" program can be a useful sanity test to make sure that a language's compiler, development environment, and run-time environment are correctly installed. Configuring a complete programming tool chain from scratch to the point where even trivial programs can be compiled and run may involve substantial amounts of work. For this reason, a simple program is used first when testing a new tool chain.

While small test programs existed since the development of programmable computers, the tradition of using the phrase "Hello, world!" as the test message was influenced by an example program in the book The C rogramming Language, by Brian Kernighan and Dennis Ritchie. The example program from that book prints "hello, world" (i.e., no capital letters, no exclamation sign).

Well, I'm to lazzy, so lets just use the supplied hello world program located at:

\Symbian\6.1\Series60\Epoc32Ex\basics\helloworld

The "\Symbian\6.1\Series60" part depends on your Symbian SDK, but the "Epoc32Ex\basics\helloworld" part is the same.

Here is the code for the HelloWorld.cpp:


// HelloWorld.cpp
//
// Copyright (c) 2000 Symbian Ltd. All rights reserved.
#include "CommonFramework.h"
// do the example
LOCAL_C void doExampleL()
{
_LIT(KHelloWorldText,"Hello world!\n");
console->Printf(KHelloWorldText);
}


You will also need an mmp (HelloWorld.mmp) file which contains:


// HelloWorld.mmp
//
// Copyright (c) 2000 Symbian Ltd. All rights reserved.
//
// using relative paths for sourcepath and user includes
//
TARGET HelloWorld.exe
TARGETTYPE exe
UID 0
//
SOURCEPATH .
SOURCE HelloWorld.cpp
//
USERINCLUDE .
USERINCLUDE ..\CommonFramework
SYSTEMINCLUDE Epoc32include
//
LIBRARY euser.lib


And finally a bld.inf file


// BLD.INF
// Component description file
//
// Copyright (c) 2000 Symbian Ltd. All rights reserved.
PRJ_MMPFILES
//only one project
HelloWorld.mmp


Go to the source directory (or to be precise, go to the directory containing the bld.inf file). Compile the program by typing this :

bldmake bldfiles

and then

abld build wins udeb


To run this program, go to

\Symbian\6.1\Series60\Epoc32\Release\wins\udeb

And type:


helloworld.exe


If it works, you environment is sane. I will explain the code and the purpose of the .mmp and .inf files on my next postings.