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implement java.util.Random and java.lang.Math.random in Java

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This commit is contained in:
Joel Dice
2008-03-20 18:39:25 -06:00
parent 9fe2cbff43
commit 8e1ec5794f
3 changed files with 47 additions and 39 deletions
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25
classpath/java-lang.cpp
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@ -519,31 +519,6 @@ Java_java_lang_Math_pow(JNIEnv*, jclass, jdouble val, jdouble exp)
return pow(val, exp);
}
extern "C" JNIEXPORT void JNICALL
Java_java_lang_Math_natRandomInitialize(JNIEnv*, jclass, jlong val)
{
#ifdef WIN32
srand(val);
#else
srand48(val);
#endif
}
extern "C" JNIEXPORT jdouble JNICALL
Java_java_lang_Math_natRandom(JNIEnv*, jclass)
{
#ifdef WIN32
double r = static_cast<double>(rand()) / static_cast<double>(RAND_MAX);
if (r < 0 or r >= 1) {
return 0;
} else {
return r;
}
#else
return drand48();
#endif
}
extern "C" JNIEXPORT jdouble JNICALL
Java_java_lang_Math_floor(JNIEnv*, jclass, jdouble val)
{