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plurals

PO
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Id
7978815
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0
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4
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2011-11-02T10:25:54.160
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2011-11-02T16:46:15.067
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2011-11-02T16:46:15.067
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147407
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7978759
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2
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text
Body
<p><strong>Edit</strong> Since the question was edited for C only:</p> <p>This page is pretty helpful: <a href="http://www.geekpedia.com/tutorial39_Random-Number-Generation.html" rel="nofollow">http://www.geekpedia.com/tutorial39_Random-Number-Generation.html</a></p> <pre><code>#include <stdlib.h> #include <stdio.h> #include <time.h> //use this first function to seed the random number generator, //call this before any of the other functions void initrand() { srand((unsigned)(time(0))); } //generates a psuedo-random float between 0.0 and 0.999... float randfloat() { return rand()/(float(RAND_MAX)+1); } //generates a psuedo-random float between 0.0 and max float randfloat(float max) { return randfloat()*max; } //generates a psuedo-random float between min and max float randfloat(float min, float max) { if (min>max) return randfloat()*(min-max)+max; else return randfloat()*(max-min)+min; } //generates a psuedo-random double between 0.0 and 0.999... double randdouble() { return rand()/(double(RAND_MAX)+1); } //generates a psuedo-random double between 0.0 and max double randdouble(double max) { return randdouble()*max; } //generates a psuedo-random double between min and max double randdouble(double min, double max) { if (min>max) return randdouble()*(min-max)+max; else return randdouble()*(max-min)+min; } int main() { for (int i=0; i<10; i++) printf("%f\n", randdouble(-1,3)); } </code></pre> <h2>Output sample:</h2> <pre><code>2.360751 0.577532 2.132397 2.193760 2.646589 -0.209795 0.340891 2.072918 0.111099 1.215880 </code></pre> <p>(note the range: -1..3)</p>
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1. This table or related slice is empty.
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1. POGenerate Float Random Values (also negative)
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1. USAndrejs Cainikovs
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1. USsehe
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