nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/global/RandomGenerator.java
| 11 +++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
New commits:
commit 209e40de80dec55427d406951f01507a6c8aeb84
Author: Todor Balabanov <todor.balaba...@gmail.com>
AuthorDate: Mon Apr 29 18:55:25 2019 +0300
Commit: Noel Grandin <noel.gran...@collabora.co.uk>
CommitDate: Wed May 1 16:11:30 2019 +0200
Random class is better than Math random function.
Change-Id: Ia35e3bb3b4f0323c7fbfc54ae5064afdf2c3f381
Reviewed-on: https://gerrit.libreoffice.org/71539
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.gran...@collabora.co.uk>
diff --git
a/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/global/RandomGenerator.java
b/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/global/RandomGenerator.java
index b59b0f8b19ed..d7fafc9b9046 100644
---
a/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/global/RandomGenerator.java
+++
b/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/global/RandomGenerator.java
@@ -22,7 +22,13 @@
package net.adaptivebox.global;
+import java.util.Random;
+
public class RandomGenerator {
+ /**
+ * Pseudo-random number generator instance.
+ */
+ private static Random PRNG = new Random();
/**
* This function returns a random integer number between the lowLimit and
@@ -34,8 +40,7 @@ public class RandomGenerator {
* @return int return value Example: for find [0,1,2]
*/
public static int intRangeRandom(int lowLimit, int upLimit) {
- int num = (int) Math
- .floor(doubleRangeRandom(lowLimit, upLimit + 1) - 1E-10);
+ int num = lowLimit + PRNG.nextInt(upLimit - lowLimit + 1);
return num;
}
@@ -49,7 +54,7 @@ public class RandomGenerator {
* @return double return value
*/
public static double doubleRangeRandom(double lowLimit, double upLimit) {
- double num = lowLimit + Math.random() * (upLimit - lowLimit);
+ double num = lowLimit + PRNG.nextDouble() * (upLimit - lowLimit);
return num;
}
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