Thread: Two Simultaneous rand() functions with different seed values for srand()

  1. 07-15-2014 #1
    Nikhil Patra
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    Two Simultaneous rand() functions with different seed values for srand()

    Hi All,

    How can I use rand() for two different srand() seed values simultaneously??

    Is there anyway to make two exclusive srand() seeds simultaneous??

    Thanks In Advance.

    Cheers
  2. 07-15-2014 #2
    laserlight
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    This is not possible with srand and rand. What you can do is to use the random number facilities introduced in C++11, or use some other PRNG implementation that allows you to have multiple independent sequences.
    Quote Originally Posted by Bjarne Stroustrup (2000-10-14)
    I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. "Finding the smallest program that demonstrates the error" is a powerful debugging tool.
    Look up a C++ Reference and learn How To Ask Questions The Smart Way
  3. 07-15-2014 #3
    Codeplug
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    drand48

    Chapter 24. Boost.Random - 1.55.0

    gg
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  4. 07-17-2014 #4
    Elysia
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    Pseudo-random number generation - cppreference.com
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

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