From 23868ebfb65e73e829b69297fad53fdf94c38d3a Mon Sep 17 00:00:00 2001
From: hujiajie <hujiajie.org@gmail.com>
Date: Tue, 12 Jul 2016 20:57:05 +0800
Subject: [PATCH] [WIP] Suppress compiler warnings.

Disable a few Visual Studio warnings:

C4244: conversion from 'type1' to 'type2', possible loss of data
C4267: conversion from 'size_t' to 'type', possible loss of data

Considering the GCC/Clang counterpart '-Wconversion'
(https://gcc.gnu.org/wiki/NewWconversion) is not covered by '-Wall', it
seems to make more sense to disable these two warnings in Visual Studio,
rather than fixing these warnings with hundreds of static_cast<> in the
source code.
---
 CMakeLists.txt      |  2 ++
 build3/premake4.lua | 11 ++++++++---
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 083835f6e..cc6e258e6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -87,6 +87,8 @@ IF(MSVC)
 	IF (USE_MSVC_FAST_FLOATINGPOINT)
 		  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /fp:fast")
   ENDIF()
+
+	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4244 /wd4267")
 ENDIF(MSVC)
 
 
diff --git a/build3/premake4.lua b/build3/premake4.lua
index 4bfb35d28..862dfc2a5 100644
--- a/build3/premake4.lua
+++ b/build3/premake4.lua
@@ -6,10 +6,15 @@
    		osversion.majorversion, osversion.minorversion, osversion.revision,
    		osversion.description))
 
-
-	-- Multithreaded compiling
 	if _ACTION == "vs2010" or _ACTION=="vs2008" then
-		buildoptions { "/MP"  }
+		buildoptions
+		{
+			-- Multithreaded compiling
+			"/MP",
+			-- Disable a few useless warnings
+			"/wd4244",
+			"/wd4267"
+		}
 	end
 
 	act = ""