Components of the Compilation System

Using the aCC Command

To invoke the HP aC++ compiling system, use the aCC command at the shell prompt. The aCC command invokes a driver program that runs the compiling system according to the filenames and command line options that you specify.

Compiling a Simple Program

The best way to get started with HP aC++ is to write, compile, and execute a simple program, as shown in the following example:

#include <iostream.h>
int main()
{
      int x,y;
      cout << “Enter an integer: “;
      cin >> x;
      y = x * 2;
     cout << “\n” << y <<“ is twice “ << x <<“.\n”;
}

If this program is in the file getting_started.C, compiling and linking the program with the aCC command produces an executable file named a.out:

$ aCC getting_started.C

Executing the Program

To run this executable file, just enter the name of the file. The following summarizes this process with the file getting_started.C:

$ a.out

Enter an integer: 7

14 is twice 7.

Debugging Programs

You can use the HP WDB debugger to debug your C++ programs after compiling your program with either the -g, the -g0, or the -g1 option.

Example:

The -g0 option enables generation of debug information:

aCC -g0 program.C

The gdb command runs the HP WDB:

gdb a.out

For more information on HP WDB, refer to “Debugging Options”.