Testing the installation

To test the product installation and the critical search paths, build and run a sample application.

About this task

Take the following steps to build and run a “Hello World” application.

Create the following C program and name the source file hello.c:

#include <stdio.h>

int main(void)
{
   printf("Hello World!\n");
   return 0;
}

Compile the program:
If you have set up the short invocation commands, enter the following command:
```
 xlc hello.c -o hello
```
If you have not set up the short invocation commands, enter the following command:
```
installation_path/xlC/13.1.4/bin/xlc hello.c -o hello
```
where installation_path is the installation location of the compiler packages. If the compiler has been installed to the default location, installation_path is /opt/ibm/.
Run the program by entering the following command:
```
./hello
```
The result is "Hello World!".
Check the exit code of the program by entering the following command:
```
  echo $?
```
The result is "0".

Create the following C++ program and name the source file hello.cpp:

#include <iostream>
using namespace std;

int main()
{
   cout << "Hello World!\n";
   return 0;
}