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Zero pad a number
Given the number 42, pad it to 8 characters like 00000042
ruby
42.to_s.rjust(8,"0")
42.to_s.rjust(8,"0")
ruby
"%08d" % 42
"%08d" % 42
cpp
C++/CLI .NET 2.0
String^ formatted = Convert::ToString(42)->PadLeft(8, '0');
using namespace System;
int main()
{
String^ formatted = Convert::ToString(42)->PadLeft(8, '0');
}
cpp
C++/CLI .NET 2.0
String^ formatted = String::Format("{0,8:D8}", 42);
using namespace System;
int main()
{
String^ formatted = String::Format("{0,8:D8}", 42);
}
cpp
std::printf("%08d", 42);
#include <cstdio>
int main()
{
std::printf("%08d", 42);
}
cpp
std::ostringstream os;
os << std::setw(8) << std::setfill('0') << 42 << std::ends;
std::cout << os.str() << std::endl;
#include <iostream>
#include <iomanip>
#include <sstream>
int main()
{
std::ostringstream os;
os << std::setw(8) << std::setfill('0') << 42 << std::ends;
std::cout << os.str() << std::endl;
}
cpp
std::cout << boost::format("%|08|") % 42 << std::endl;
#include "boost/format.hpp"
int main()
{
std::cout << boost::format("%|08|") % 42 << std::endl;
}
clojure
clojure
(defn pad
([x] (if (> 8 (.length (str x))) (pad (str 0 x)) (str x)))
)
(defn pad
([x] (if (> 8 (.length (str x))) (pad (str 0 x)) (str x)))
)
clojure
clojure
(defn pad [x]
(format "%08d" x))
(defn pad [x]
(format "%08d" x))
clojure
(format "%08d" 42)
(format "%08d" 42)
fsharp
printfn "%08d" 42
#light
open System
printfn "%08d" 42
fsharp
let formatted = sprintf "%08d" 42
printfn "%s" formatted
#light
open System
let formatted = sprintf "%08d" 42
printfn "%s" formatted
fsharp
let buffer = new StringBuilder()
Printf.bprintf buffer "%08d" 42
printfn "%s" (buffer.ToString())
#light
open System
open System.Text
let buffer = new StringBuilder()
Printf.bprintf buffer "%08d" 42
printfn "%s" (buffer.ToString())
fsharp
let formatted = String.Format("{0,8:D8}", 42)
Console.WriteLine(formatted)
#light
open System
let formatted = String.Format("{0,8:D8}", 42)
Console.WriteLine(formatted)
fsharp
let formatted = Convert.ToString(42).PadLeft(8, '0')
Console.WriteLine(formatted)
#light
open System
let formatted = Convert.ToString(42).PadLeft(8, '0')
Console.WriteLine(formatted)
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