From 92d18c25a2ff68e76bc268b3ad891c78e4cb58d7 Mon Sep 17 00:00:00 2001
From: Alex Auvolat <alex.auvolat@ens.fr>
Date: Sun, 1 Feb 2015 18:19:59 +0100
Subject: Implement random point chosing algorithm

---
 geom.hpp | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'geom.hpp')

diff --git a/geom.hpp b/geom.hpp
index 06b9e65..e69fb81 100644
--- a/geom.hpp
+++ b/geom.hpp
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <stdlib.h>
 #include <math.h>
 #include <algorithm>
 #include <assert.h>
@@ -7,6 +8,11 @@
 #define EPSILON 1e-6
 #define abs(x) ((x)<0?-(x):(x))
 
+inline double frand(double a, double b) {
+	double r = ((double)rand()) / ((double)RAND_MAX);
+	return r * (b - a) + a;
+}
+
 struct vec {
 	double x, y;
 
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