Creating implementation for idiom 152 : Turn a character into a string

Idiom

# 152 Turn a character into a string

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Create string s containing only the character c.

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S : constant String := "" & C;

char s[2] = {0};
s[0] = c;

(def s (str c))

string s { 'c' };

string s = c.ToString();

var s = new string(c, 1);

import std.conv : to;

string s = to!string(c);

var s=c;

to_string(char)

S = [C]

character(len=:),allocatable :: s
character(len=1) :: c
s=c

import "fmt"

s := fmt.Sprintf("%c", c)

s = [c]

let s = c

String s = String.valueOf(c);

String s = "%s".formatted(c);

String s = Character.toString(c);

String s = c + "";

String s = = new Character(c).toString();

val s: String = c.toString()

(defparameter *s* (string c))

s = c

$s = (string) $c;

var
  s: string;
begin
  s := 'c';
end.

my $s = $c;

s = c

s = ?c

let s = c.to_string();