From 80d2492d8683ab64239ced9117364825f42eb79d Mon Sep 17 00:00:00 2001
From: Zak Strange <zak@strangedev.net>
Date: Fri, 19 Aug 2016 20:28:32 -0700
Subject: [PATCH] 0.3 - Added +=,-=, *=, /= for hmm_vec2, hmm_vec3, hmm_vec4

---
 HandmadeMath.h | 110 ++++++++++++++++++++++++++++++++++++++++++++++---
 README.md      |   7 ++--
 2 files changed, 107 insertions(+), 10 deletions(-)

diff --git a/HandmadeMath.h b/HandmadeMath.h
index 6a7c431..8610ce1 100644
--- a/HandmadeMath.h
+++ b/HandmadeMath.h
@@ -1,5 +1,5 @@
 /*
-  HandmadeMath.h v0.2b
+  HandmadeMath.h v0.3
 
   This is a single header file with a bunch of useful functions for
   basic game math operations.
@@ -49,6 +49,22 @@
      #define HANDMADE_MATH_IMPLEMENTATION
      #define HANDMADE_MATH_NO_SSE
 
+  ==========================================================================
+
+  To disable inlining functions, you MUST
+
+  #define HANDMADE_MATH_NO_INLINE
+
+  in EXACTLY one C or C++ file that includes this header, BEFORE the
+  include, like this:
+
+     #define HANDMADE_MATH_IMPLEMENTATION
+     #define HANDMADE_MATH_CPP_MODE
+     #define HANDMADE_MATH_NO_INLINE
+     #include "HandmadeMath.h"
+
+  All other files should just #include "HandmadeMath.h" without the #define.
+
   Version History:
       0.2 (*) Updated documentation
           (*) Better C compliance
@@ -60,13 +76,11 @@
           (*) Disabled warning 4201 on MSVC as it is legal is C11
           (*) Removed the f at the end of HMM_PI to get 64bit precision
       0.3
-          () Removed CRT
+          (*) Added +=,-=, *=, /= for hmm_vec2, hmm_vec3, hmm_vec4
       0.4
           (*) SSE Optimized HMM_SqrtF
           (*) SSE Optimized HMM_RSqrtF
-          () SSE Optimized HMM_SinF
-          () SSE Optimized HMM_CosF
-          () SSe Optimized HMM_TanF
+          () Remove CRT
 
 
   LICENSE
@@ -84,6 +98,7 @@
    Aleph
    FieryDrake (@fierydrake)
    Gingerbill (@TheGingerBill)
+   Ben Visness (@bvisness) 
 
   Fixes:
    Jeroen van Rijn (@J_vanRijn)
@@ -111,7 +126,9 @@ extern "C"
 #define HMMDEF extern
 #endif
 
-#if _MSC_VER && !__INTEL_COMPILER
+#ifdef HANDMADE_MATH_NO_INLINE
+#define HINLINE
+#elif _MSC_VER && !__INTEL_COMPILER
 #define HINLINE __inline
 #else
 #define HINLINE inline
@@ -1184,6 +1201,87 @@ operator/(hmm_vec4 Left, hmm_vec4 Right)
     return (Result);
 }
 
+HINLINE hmm_vec2 &
+operator+=(hmm_vec2 &Left, hmm_vec2 Right)
+{    
+    return(Left = Left + Right);    
+}
+
+HINLINE hmm_vec3 &
+operator+=(hmm_vec3 &Left, hmm_vec3 Right)
+{    
+    return(Left = Left + Right);    
+}
+
+HINLINE hmm_vec4 &
+operator+=(hmm_vec4 &Left, hmm_vec4 Right)
+{    
+    return(Left = Left + Right);    
+}
+
+HINLINE hmm_vec2 &
+operator-=(hmm_vec2 &Left, hmm_vec2 Right)
+{    
+    return(Left = Left - Right);    
+}
+
+
+HINLINE hmm_vec3 &
+operator-=(hmm_vec3 &Left, hmm_vec3 Right)
+{    
+    return(Left = Left - Right);    
+}
+
+
+HINLINE hmm_vec4 &
+operator-=(hmm_vec4 &Left, hmm_vec4 Right)
+{    
+    return(Left = Left - Right);    
+}
+
+
+HINLINE hmm_vec2 &
+operator/=(hmm_vec2 &Left, hmm_vec2 Right)
+{    
+    return(Left = Left / Right);    
+}
+
+
+HINLINE hmm_vec3 &
+operator/=(hmm_vec3 &Left, hmm_vec3 Right)
+{    
+    return(Left = Left / Right);    
+}
+
+
+HINLINE hmm_vec4 &
+operator/=(hmm_vec4 &Left, hmm_vec4 Right)
+{    
+    return(Left = Left / Right);    
+}
+
+
+HINLINE hmm_vec2 &
+operator*=(hmm_vec2 &Left, hmm_vec2 Right)
+{    
+    return(Left = Left * Right);    
+}
+
+
+HINLINE hmm_vec3 &
+operator*=(hmm_vec3 &Left, hmm_vec3 Right)
+{    
+    return(Left = Left * Right);    
+}
+
+
+HINLINE hmm_vec4 &
+operator*=(hmm_vec4 &Left, hmm_vec4 Right)
+{    
+    return(Left = Left * Right);    
+}
+
+
 #endif /* HANDMADE_MATH_CPP_MODE */
 
 #endif /* HANDMADE_MATH_IMPLEMENTATION */
\ No newline at end of file
diff --git a/README.md b/README.md
index e33836a..10d5ef6 100644
--- a/README.md
+++ b/README.md
@@ -5,8 +5,8 @@ Single-file public domain game math library for C/C++
 
 Version         | Changes | 
 ----------------|----------------|
-**0.4 (ID)**     | SSE Optimizations for, HMM_SqrtF, HMM_RSqrtF, HMM_SinF, HMM_CosF, HMM_TanF              | 
-**0.3 (ID)**     | Removed use of CRT              | 
+**0.4 (ID)**     | Added SSE Optimized HMM_SqrtF, HMM_RSqrtF, Removed use of CRT              | 
+**0.3**     | Added +=,-=, *=, /= for hmm_vec2, hmm_vec3, hmm_vec4              | 
 **0.2b**     | Disabled warning C4201 on MSVC, Added 64bit percision on HMM_PI              | 
 **0.2a**    | Prefixed Macros              | 
 **0.2**    | Updated Documentation, Fixed C Compliance, Prefixed all functions, and added better operator overloading               | 
@@ -19,8 +19,7 @@ _ID: In Development_
 
 **What's the license?**
 
-These libraries are in the public domain. You can do whatever you want with them.
- 
+This library is in the public domain. You can do whatever you want with them.
 
 **Where can i contact you to ask quesitons ?**