From 4f2aa4218ec63107b4624e576ff391c2019690a1 Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Sun, 25 Jan 2015 17:15:59 +0100
Subject: Implemented `Count` in terms of `Fold` and `Map` * as its name
 implies this function counts the amount of elements satisfying a given
 _function_ * added appropriate test case

---
 test.cc | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'test.cc')

diff --git a/test.cc b/test.cc
index 6476bb8..62c6f85 100644
--- a/test.cc
+++ b/test.cc
@@ -607,3 +607,27 @@ static_assert(
 	>::value,
 	"(list-tabulate 4 square) != (list 0 1 4 9)"
 );
+
+// list count
+
+static_assert(
+	std::is_same<
+		tav::Size<2>,
+		tav::Count<
+			tav::Odd,
+			tav::List<tav::Int<1>, tav::Int<2>, tav::Int<3>>::type
+		>::type
+	>::value,
+	"(count odd? (list 1 2 3)) != 2"
+);
+
+static_assert(
+	std::is_same<
+		tav::Size<0>,
+		tav::Count<
+			tav::Even,
+			tav::List<tav::Int<1>, tav::Int<3>, tav::Int<5>>::type
+		>::type
+	>::value,
+	"(count even? (list 1 3 5)) != 0"
+);
-- 
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