From 1db2c5ca0ff0c05783726899059c7b8e09fe07c6 Mon Sep 17 00:00:00 2001
From: Sam Hocevar <sam@hocevar.net>
Date: Mon, 21 Aug 2017 01:09:52 +0200
Subject: [PATCH] Allow ! and bool operators on polynomials.

This allows us to manipulate polynomials of polynomials. Not sure why yet,
but it could be useful to implement 2-variable polynomials.
---
 src/lol/math/polynomial.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/lol/math/polynomial.h b/src/lol/math/polynomial.h
index a140314b..e55f4126 100644
--- a/src/lol/math/polynomial.h
+++ b/src/lol/math/polynomial.h
@@ -274,6 +274,17 @@ struct LOL_ATTR_NODISCARD polynomial
         return (*this)[degree()];
     }
 
+    /* Boolean operations */
+    bool operator !() const
+    {
+        return degree() < 0;
+    }
+
+    operator bool() const
+    {
+        return !!*this;
+    }
+
     /* Unary plus */
     polynomial<T> operator +() const
     {