From a15db74027fde75efef34f391d2a458bf64001d0 Mon Sep 17 00:00:00 2001
From: Johannes Stoelp <johannes.stoelp@gmail.com>
Date: Tue, 26 Mar 2024 21:47:29 +0100
Subject: bitset: initial state, play with fold expr

---
 test/bitset.cc | 88 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 test/bitset.cc

(limited to 'test')

diff --git a/test/bitset.cc b/test/bitset.cc
new file mode 100644
index 0000000..755a79c
--- /dev/null
+++ b/test/bitset.cc
@@ -0,0 +1,88 @@
+#if __cplusplus >= 201703L
+#include <bitset.h>
+
+enum bits { a, b, c, d };
+
+int main() {
+  {
+    bitset<bits> t;
+    assert(t.is_empty());
+    assert(!t.is_set(a));
+    assert(!t.is_set(b));
+    assert(!t.is_set(c));
+    assert(!t.is_set(d));
+  }
+  {
+    bitset<bits> t(b);
+    assert(!t.is_empty());
+    assert(!t.is_set(a));
+    assert(t.is_set(b));
+    assert(!t.is_set(c));
+    assert(!t.is_set(d));
+  }
+  {
+    bitset<bits> t(a, c);
+    assert(!t.is_empty());
+    assert(t.is_set(a));
+    assert(!t.is_set(b));
+    assert(t.is_set(c));
+    assert(!t.is_set(d));
+  }
+  {
+    bitset<bits> t;
+    t.set(b, d);
+    assert(!t.is_empty());
+    assert(!t.is_set(a));
+    assert(t.is_set(b));
+    assert(!t.is_set(c));
+    assert(t.is_set(d));
+    t.set(c);
+    assert(!t.is_empty());
+    assert(!t.is_set(a));
+    assert(t.is_set(b));
+    assert(t.is_set(c));
+    assert(t.is_set(d));
+
+    t.unset();
+    assert(!t.is_empty());
+    t.unset(b, d);
+    assert(!t.is_empty());
+    assert(!t.is_set(a));
+    assert(!t.is_set(b));
+    assert(t.is_set(c));
+    assert(!t.is_set(d));
+    t.unset(c);
+    assert(t.is_empty());
+    assert(!t.is_set(a));
+    assert(!t.is_set(b));
+    assert(!t.is_set(c));
+    assert(!t.is_set(d));
+  }
+  {
+    bitset<bits> t;
+    t.set(a, b, d);
+    assert(!t.any());
+    assert(!t.any(c));
+    assert(t.any(a));
+    assert(t.any(a, c));
+    assert(t.any(a, b));
+  }
+  {
+    bitset<bits> t;
+    t.set(a, b, d);
+    assert(!t.all());
+    assert(!t.all(c));
+    assert(t.all(a));
+    assert(!t.all(a, c));
+    assert(t.all(a, b));
+    assert(t.all(a, b, d));
+    assert(!t.all(a, b, c, d));
+  }
+  return 0;
+}
+#else
+#include <cstdio>
+int main() {
+  puts("[bitset]: not built with >cpp17");
+}
+#endif
-- 
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