From 47b276024e66385a45c2dd8113e8df466e68fa0e Mon Sep 17 00:00:00 2001
From: "alexey.lysiuk" <alexey.lysiuk@gmail.com>
Date: Mon, 22 Jan 2018 12:29:16 +0200
Subject: [PATCH] Fixed compilation warnings reported by MSVC

src\p_map.cpp(4857): warning C4800: 'int': forcing value to bool 'true' or 'false' (performance warning)
src\p_map.cpp(4858): warning C4800: 'int': forcing value to bool 'true' or 'false' (performance warning)
---
 src/p_map.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/p_map.cpp b/src/p_map.cpp
index 6c269e8101..8e445862a3 100644
--- a/src/p_map.cpp
+++ b/src/p_map.cpp
@@ -4854,8 +4854,8 @@ bool P_LineTrace(AActor *t1, DAngle angle, double distance,
 	FTraceResults trace;
 	CheckLineData TData;
 	TData.Caller = t1;
-	TData.ThruSpecies = (flags & TRF_THRUSPECIES);
-	TData.ThruActors = (flags & TRF_THRUACTORS);
+	TData.ThruSpecies = !!(flags & TRF_THRUSPECIES);
+	TData.ThruActors = !!(flags & TRF_THRUACTORS);
 	TData.NumPortals = 0;
 	DVector3 direction;
 	double pc = pitch.Cos();