Sha256 Hashes in Chapel
Here’s the translated code and explanation in Chapel, formatted for Hugo:
Our first program will print the classic “hello world” message. Here’s the full source code.
use IO;
proc main() {
writeln("hello world");
}
To run the program, save the code in a file with a .chpl
extension (e.g., hello-world.chpl
) and use the chpl
compiler to compile and run it.
$ chpl hello-world.chpl -o hello-world
$ ./hello-world
hello world
In Chapel, the compilation and execution can be done in a single step using the --run
flag:
$ chpl --run hello-world.chpl
hello world
Sometimes we’ll want to build our programs into binaries. We can do this using the chpl
compiler without the --run
flag.
$ chpl hello-world.chpl -o hello-world
$ ls
hello-world hello-world.chpl
We can then execute the built binary directly.
$ ./hello-world
hello world
Now that we can run and build basic Chapel programs, let’s learn more about the language.
In this Chapel program:
- We use the
IO
module, which provides input/output functionality. - The
main()
procedure is the entry point of the program. - The
writeln()
function is used to print a line to the console.
Chapel combines the ease of use of scripting languages with the performance and scalability of traditional compiled languages, making it suitable for both small and large-scale programming tasks.