Random number generator (device): Difference between revisions
Content deleted Content added
Nimrod -> Nim |
Fortran 2008 version with urandom |
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loop |
loop |
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close-file throw ;</lang> |
close-file throw ;</lang> |
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=={{header|Fortran}}== |
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Using system /dev/urandom in [[GNU]]/[[Linux]]. |
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<lang fortran> |
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!----------------------------------------------------------------------- |
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! Test Linux urandom in Fortran |
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!----------------------------------------------------------------------- |
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program urandom_test |
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use iso_c_binding, only : c_long |
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implicit none |
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character(len=*), parameter :: RANDOM_PATH = "/dev/urandom" |
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integer :: funit, ios |
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integer(c_long) :: buf |
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open(newunit=funit, file=RANDOM_PATH, access="stream", form="UNFORMATTED", & |
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iostat=ios, status="old", action="read") |
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if ( ios /= 0 ) stop "Error opening file: "//RANDOM_PATH |
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read(funit) buf |
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close(funit) |
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write(*,'(A,I64)') "Integer: ", buf |
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write(*,'(A,B64)') "Binary: ", buf |
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write(*,'(A,Z64)') "Hexadecimal: ", buf |
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end program urandom_test |
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</lang> |
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=={{header|Go}}== |
=={{header|Go}}== |
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In the Go library is crypto/rand, a source specified to use dev/urandom on Unix-like systems and the CryptGenRandom API on Windows. Also implemented here is a source using dev/random, if you really want it. On my system it would print a few numbers then hang until I moved the mouse or pressed some keys on the keyboard. |
In the Go library is crypto/rand, a source specified to use dev/urandom on Unix-like systems and the CryptGenRandom API on Windows. Also implemented here is a source using dev/random, if you really want it. On my system it would print a few numbers then hang until I moved the mouse or pressed some keys on the keyboard. |
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