Binary digits: Difference between revisions

=={{header|Batch File}}==

This num2bin.bat file handles non-negative input as per the requirements with no leading zeros in the output. Batch only supports signed integers. This script also handles negative values by printing the appropriate two's complement notation.

<lang dos>

@echo off

:num2bin IntVal [RtnVar]

setlocal enableDelayedExpansion

set /a n=%~1

set rtn=

for /l %%b in (0,1,31) do (

set /a "d=n&1, n>>=1"

set rtn=!d!!rtn!

)

for /f "tokens=* delims=0" %%a in ("!rtn!") do set rtn=%%a

(endlocal & rem -- return values

if "%~2" neq "" (set %~2=%rtn%) else echo %rtn%

)

exit /b

</lang>