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authorNicholas Noll <nbnoll@eml.cc>2021-11-11 16:31:58 -0800
committerNicholas Noll <nbnoll@eml.cc>2021-11-11 16:31:58 -0800
commit9695ea005d4af93dcd60f74f10fd3c54499a182f (patch)
tree3e1a9abb9456ba07c0c97cd3d691f6a2df115791 /sys/base/rng/exponential.c
parentc65794b50b1bc729e7a4e940b76a973afa3030b9 (diff)
chore: split up base library into individual files for smaller binaries
Diffstat (limited to 'sys/base/rng/exponential.c')
-rw-r--r--sys/base/rng/exponential.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/sys/base/rng/exponential.c b/sys/base/rng/exponential.c
new file mode 100644
index 0000000..c07e007
--- /dev/null
+++ b/sys/base/rng/exponential.c
@@ -0,0 +1,11 @@
+#include "internal.h"
+
+/* Returns a random float64 between 0 and 1 */
+double
+rng·exponential(double lambda)
+{
+ double f;
+
+ f = rng·random();
+ return -log(1 - f)/lambda;
+}