add given code

1 files changed, 58 insertions, 0 deletions

diff --git a/labb5/lib/StanfordCPPLib/random.h b/labb5/lib/StanfordCPPLib/random.h
new file mode 100755
index 0000000..3286f8f
--- /dev/null
+++ b/labb5/lib/StanfordCPPLib/random.h
@@ -0,0 +1,58 @@
+/*
+ * File: random.h
+ * --------------
+ * This file exports functions for generating pseudorandom numbers.
+ */
+
+#ifndef _random_h
+#define _random_h
+
+/*
+ * Function: randomInteger
+ * Usage: int n = randomInteger(low, high);
+ * ----------------------------------------
+ * Returns a random integer in the range <code>low</code> to
+ * <code>high</code>, inclusive.
+ */
+
+int randomInteger(int low, int high);
+
+/*
+ * Function: randomReal
+ * Usage: double d = randomReal(low, high);
+ * ----------------------------------------
+ * Returns a random real number in the half-open interval
+ * [<code>low</code>&nbsp;..&nbsp;<code>high</code>).  A half-open
+ * interval includes the first endpoint but not the second, which
+ * means that the result is always greater than or equal to
+ * <code>low</code> but strictly less than <code>high</code>.
+ */
+
+double randomReal(double low, double high);
+
+/*
+ * Function: randomChance
+ * Usage: if (randomChance(p)) ...
+ * -------------------------------
+ * Returns <code>true</code> with the probability indicated by <code>p</code>.
+ * The argument <code>p</code> must be a floating-point number between
+ * 0 (never) and 1 (always).  For example, calling
+ * <code>randomChance(.30)</code> returns <code>true</code> 30 percent
+ * of the time.
+ */
+
+bool randomChance(double p);
+
+/*
+ * Function: setRandomSeed
+ * Usage: setRandomSeed(seed);
+ * ---------------------------
+ * Sets the internal random number seed to the specified value.  You
+ * can use this function to set a specific starting point for the
+ * pseudorandom sequence or to ensure that program behavior is
+ * repeatable during the debugging phase.
+ */
+
+void setRandomSeed(int seed);
+
+#endif