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Programming-Idioms

  • Java
  • Pascal
  • Dart
  • Ruby

Idiom #210 Compiler version and options

Assign, at runtime, the compiler version and the options the program was compiled with to variables version and options, respectively, and print them. For interpreted languages, substitute the version of the interpreter.

Example output:

GCC version 10.0.0 20190914 (experimental)
-mtune=generic -march=x86-64

puts version = RUBY_VERSION
import static java.lang.String.join;
import static java.lang.System.getProperty;
import static java.lang.System.out;
public static void main(String[] args) {
    String version = getProperty("java.vm.version"),
           options = join(" ", args);
}
writeln({$I %fpcversion%});

Obviously FreePascal only.
Compiler options are not available through a single variable.
use iso_fortran_env

  character(len=:), allocatable :: version, options
  version = compiler_version()
  options = compiler_options()
  print *,version
  print *,options
New implementation...
< > ⌨
tkoenig 
puts version = RUBY_VERSION
public static void main(String[] args) {
    String version = getProperty("java.vm.version"),
           options = join(" ", args);
}
writeln({$I %fpcversion%});
  character(len=:), allocatable :: version, options
  version = compiler_version()
  options = compiler_options()
  print *,version
  print *,options

version := runtime.Version()
version = GroovySystem.version
const { version } = process;
console.log(version);
print(_VERSION)
my $version = $Config{version};
my $version_for_humans = $Config{version_patchlevel_string};
my %options = %Config{qw(config_args cccdlflags ccdlflags ccflags lddlflags libs)};

$version = "$]";
version = sys.version
options = sys.flags