Creating implementation for idiom 157 : Declare constant string

Idiom

# 157 Declare constant string

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Initialize a constant planet with string value "Earth".

New implementation

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planet : constant String := "Earth";

const char *_planet = "Earth";

(def planet "Earth")

Origin

#include <string>

// using char*
constexpr char planet[] = "Earth";

// using string
const std::string planet{"Earth"};

const string _planet = "Earth";

enum string planet = "Earth";

static immutable string planet = "Earth";

enum planet = "Earth";

immutable string planet = "Earth";

const string planet = "Earth";

const String _planet = "Earth";

planet = "Earth"

Planet = "Earth".

character(*), parameter :: planet = "Earth"

  character(len=*), parameter :: planet = "Earth"

const planet = "Earth"

Demo
Doc

static final planet = "Earth"
static final planet = 'Earth'
static final planet = /Earth/
static final planet = '''Earth'''
static final planet = """Earth"""

planet = "Earth"

const planet = 'Earth'

final String planet = "Earth";

final String planet = "Earth";

static final String planet = "Earth";

Demo
Doc

val planet = "Earth"

Demo
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(defparameter +planet+ "Earth")

PLANET = "Earth"

NSString * const Planet=@"Earth";

const PLANET = 'Earth';

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define('PLANET', 'Earth');

Demo
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const
  planet = 'Earth';

use Const::Fast qw(const);

const my $planet => 'Earth';

use constant planet => 'Earth';
use constant PI => 3.14159;
use constant { RED => 1, BLUE => 2, GREEN => 3 };

PLANET = 'Earth'

Planet = 'Earth'

const PLANET: &str = "Earth";

Demo
Doc

val planet = "Earth"

planet := 'Earth'.

Const PLANET = "Earth"

Preview