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author | Camil Staps | 2016-02-02 19:24:50 +0100 |
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committer | Camil Staps | 2016-02-02 19:24:50 +0100 |
commit | a7d7542dc646a5fd124ef71e71ce260889f1701b (patch) | |
tree | 04ed89503bbb3cc9933273a1326a53ca724c3492 /1415/files/practicum/Random.dcl | |
parent | week6 camil: working positioning of lines by putting empties at left and righ... (diff) |
Diffstat (limited to '1415/files/practicum/Random.dcl')
-rw-r--r-- | 1415/files/practicum/Random.dcl | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/1415/files/practicum/Random.dcl b/1415/files/practicum/Random.dcl new file mode 100644 index 0000000..cc4f646 --- /dev/null +++ b/1415/files/practicum/Random.dcl @@ -0,0 +1,22 @@ +definition module Random
+
+// **************************************************************************************************
+//
+// General utility for random number generation.
+//
+// This module has been written in Clean 1.3.2 and uses the Clean Standard Object I/O library 1.2
+//
+// **************************************************************************************************
+
+import StdTime
+
+:: RandomSeed
+
+nullRandomSeed :: RandomSeed
+// nullRandomSeed generates a useless RandomSeed (random nullRandomSeed = (0,nullRandomSeed)).
+
+getNewRandomSeed:: !*env -> (!RandomSeed, !*env) | TimeEnv env
+// GetNewRandomSeed generates a useful RandomSeed, using the current time.
+
+random :: !RandomSeed -> .(!Int, !RandomSeed)
+// Given a RandomSeed, Random generates a random number and a new RandomSeed.
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