String Character Length

String Character Length
You are encouraged to solve this task according to the task description, using any language you may know.

In this task, the goal is to find the length of a string.

C

Standard: ANSI C (AKA C89):

Compiler: GCC 3.3.3

 #include <string.h>

 int main(int argc, char ** argv) {
         const char *string = "Hello, world!";
         size_t length = strlen(string);
          
         return 0;
 };

C++

Standard: ISO C++ (AKA C++98):

Compiler: g++ 4.0.2

 #include <string> // note: not <string.h>
 
 int main()
 {
   std::string s = "Hello, world!";
   std::string::size_type length = s.length();
 }

Java

Compiler: any Java compiler should do

String s = "Hello, world!";
int length = s.length();

C#

Platform: .NET Language Version: 1.0+

string s = "Hello, world!";
int length = s.Length;

mIRC

Compiler: mIRC

alias stringlength { echo -a Your Name is: $len($$?="Whats your name") letters long! }

SML

Interpreter: SML/NJ 110.60, Moscow ML 2.01 (January 2004)

Compiler: MLton 20061107

val strlen = size("Hello, world!");

Python

Interpreter: Python 2.4

length = len("The length of this string will be determined")

Perl

Interpreter: Perl any 5.X

 my $length = length "Hello, world!";

UNIX Shell

With external utilities:

Interpreter: any bourne shell

 string='Hello, world!'
 length=`echo -n "$string" | wc -c | tr -dc '0-9'`

With SUSv3 parameter expansion modifier:

Interpreter: Almquist SHell (NetBSD 3.0), Bourne Again SHell 3.2, Korn SHell (5.2.14 99/07/13.2), Z SHell

 string='Hello, world!'
 length="${#string}"

JudoScript

 //Store length of hello world in length and print it
 . length = "Hello World".length();

Lua

Interpreter: Lua 5.0 or later.

 string="Hello world"
 length=#string

Ruby

 string="Hello world"
 print string.length