Debug 4
Start Without Debugging or press
ctrl
-F5 to run your
program. The letters
Hello, world!
should print to the console (followed
by
Press Any Key to Continue
).
macOS: Xcode If you’re running macOS, you should install the Xcode development
environment.
1. Open the
App Store .
2. Search for and install the
Xcode IDE. Installation might take more
than an hour depending on the speed of your machine and internet
connection. When installation is complete, open
Terminal and navi-
gate to the directory where you’ve saved main.cpp.
3. Enter
clang++ main.cpp -o hello in the Terminal to compile your pro-
gram. The
-o
option tells the tool chain where to write the output. (If
any compiler errors appear, check that you’ve entered the program
correctly.)
4. Enter
./hello in the Terminal to run your program. The text
Hello,
world!
should appear onscreen.
To compile and run your program, open the Xcode IDE and follow
these steps:
1. Select
File 4
New 4
Project .
2. Select
macOS 4
Command Line Tool and click
Next . In the next dia-
log, you can modify where to create the project’s file directory. For now,
accept the defaults and click
Create .
3. Name your project
hello and set its
Type to
C++ . See Figure 1-3.
4. You now need to import your code from Listing 1-1 into your project.
An easy way to do this is to copy and paste the contents of main.cpp into your project’s main.cpp. Another way is to use Finder to replace
your main.cpp into your project’s main.cpp. (Normally you won’t have
to handle this when creating new projects. It’s just an artifact of this
tutorial having to handle multiple operating environments.)
5. Click
