From 60887138ff52e6be62fa2b2e837294d1f8de78c3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Benjamin=20=E2=80=98Touky=E2=80=99=20Huet?=
 <huet.benjamin@gmail.com>
Date: Mon, 16 Jun 2014 03:42:21 +0000
Subject: [PATCH] Added tostring to vectors, similar to printf, but with
 tostring.

---
 src/lol/math/vector.h |  6 +++-
 src/math/vector.cpp   | 80 +++++++++++++++++++++++--------------------
 2 files changed, 47 insertions(+), 39 deletions(-)

diff --git a/src/lol/math/vector.h b/src/lol/math/vector.h
index e4982a55..60ab8905 100644
--- a/src/lol/math/vector.h
+++ b/src/lol/math/vector.h
@@ -178,7 +178,8 @@ template<typename T, int N> struct XVec4
         return ret; \
     } \
     \
-    void printf() const;
+    void printf() const; \
+    String tostring() const;
 
 /*
  * 2-element vectors
@@ -1616,6 +1617,7 @@ template <typename T> struct Mat2
     }
 
     void printf() const;
+    String tostring() const;
 
     template<class U>
     friend std::ostream &operator<<(std::ostream &stream, Mat2<U> const &m);
@@ -1742,6 +1744,7 @@ template <typename T> struct Mat3
     }
 
     void printf() const;
+    String tostring() const;
 
     template<class U>
     friend std::ostream &operator<<(std::ostream &stream, Mat3<U> const &m);
@@ -1915,6 +1918,7 @@ template <typename T> struct Mat4
     static Mat4<T> shifted_perspective(T fov_y, T screen_size, T screen_ratio_yx, T near, T far);
 
     void printf() const;
+    String tostring() const;
 
     template<class U>
     friend std::ostream &operator<<(std::ostream &stream, Mat4<U> const &m);
diff --git a/src/math/vector.cpp b/src/math/vector.cpp
index 235cadc8..b59256fa 100644
--- a/src/math/vector.cpp
+++ b/src/math/vector.cpp
@@ -171,52 +171,33 @@ template<> mat4 inverse(mat4 const &mat)
     return ret;
 }
 
-template<> void vec2::printf() const
-{
-    Log::Debug("[ %6.6f %6.6f ]\n", x, y);
-}
-
-template<> void ivec2::printf() const
-{
-    Log::Debug("[ %i %i ]\n", x, y);
-}
-
-template<> void cmplx::printf() const
-{
-    Log::Debug("[ %6.6f %6.6f ]\n", x, y);
-}
-
-template<> void vec3::printf() const
-{
-    Log::Debug("[ %6.6f %6.6f %6.6f ]\n", x, y, z);
-}
-
-template<> void ivec3::printf() const
-{
-    Log::Debug("[ %i %i %i ]\n", x, y, z);
-}
+#define LOL_PRINTF_TOSTRING(type, ...) \
+template<> void type::printf() const        { Log::Debug(__VA_ARGS__); } \
+template<> String type::tostring() const    { return String::Printf(__VA_ARGS__); }
+
+LOL_PRINTF_TOSTRING(vec2,   "[ %6.6f %6.6f ]\n", x, y);
+LOL_PRINTF_TOSTRING(ivec2,  "[ %i %i ]\n", x, y);
+LOL_PRINTF_TOSTRING(cmplx,  "[ %6.6f %6.6f ]\n", x, y);
+LOL_PRINTF_TOSTRING(vec3,   "[ %6.6f %6.6f %6.6f ]\n", x, y, z);
+LOL_PRINTF_TOSTRING(ivec3,  "[ %i %i %i ]\n", x, y, z);
+LOL_PRINTF_TOSTRING(vec4,   "[ %6.6f %6.6f %6.6f %6.6f ]\n", x, y, z, w);
+LOL_PRINTF_TOSTRING(ivec4,  "[ %i %i %i %i ]\n", x, y, z, w);
+LOL_PRINTF_TOSTRING(quat,   "[ %6.6f %6.6f %6.6f %6.6f ]\n", w, x, y, z);
 
-template<> void vec4::printf() const
-{
-    Log::Debug("[ %6.6f %6.6f %6.6f %6.6f ]\n", x, y, z, w);
-}
-
-template<> void ivec4::printf() const
+template<> void mat2::printf() const
 {
-    Log::Debug("[ %i %i %i %i ]\n", x, y, z, w);
-}
+    mat2 const &p = *this;
 
-template<> void quat::printf() const
-{
-    Log::Debug("[ %6.6f %6.6f %6.6f %6.6f ]\n", w, x, y, z);
+    Log::Debug("[ %6.6f %6.6f\n", p[0][0], p[1][0]);
+    Log::Debug("  %6.6f %6.6f ]\n", p[0][1], p[1][1]);
 }
 
-template<> void mat2::printf() const
+template<> String mat2::tostring() const
 {
     mat2 const &p = *this;
 
-    Log::Debug("[ %6.6f %6.6f\n", p[0][0], p[1][0]);
-    Log::Debug("  %6.6f %6.6f ]\n", p[0][1], p[1][1]);
+    return String::Printf("[ %6.6f %6.6f\n", p[0][0], p[1][0]) +
+           String::Printf("  %6.6f %6.6f ]\n", p[0][1], p[1][1]);
 }
 
 template<> void mat3::printf() const
@@ -228,6 +209,15 @@ template<> void mat3::printf() const
     Log::Debug("  %6.6f %6.6f %6.6f ]\n", p[0][2], p[1][2], p[2][2]);
 }
 
+template<> String mat3::tostring() const
+{
+    mat3 const &p = *this;
+
+    return String::Printf("[ %6.6f %6.6f %6.6f\n", p[0][0], p[1][0], p[2][0]) +
+           String::Printf("  %6.6f %6.6f %6.6f\n", p[0][1], p[1][1], p[2][1]) +
+           String::Printf("  %6.6f %6.6f %6.6f ]\n", p[0][2], p[1][2], p[2][2]);
+}
+
 template<> void mat4::printf() const
 {
     mat4 const &p = *this;
@@ -242,6 +232,20 @@ template<> void mat4::printf() const
                p[0][3], p[1][3], p[2][3], p[3][3]);
 }
 
+template<> String mat4::tostring() const
+{
+    mat4 const &p = *this;
+
+    return String::Printf("[ %6.6f %6.6f %6.6f %6.6f\n",
+                            p[0][0], p[1][0], p[2][0], p[3][0]) +
+           String::Printf("  %6.6f %6.6f %6.6f %6.6f\n",
+                            p[0][1], p[1][1], p[2][1], p[3][1]) +
+           String::Printf("  %6.6f %6.6f %6.6f %6.6f\n",
+                            p[0][2], p[1][2], p[2][2], p[3][2]) +
+           String::Printf("  %6.6f %6.6f %6.6f %6.6f ]\n",
+                            p[0][3], p[1][3], p[2][3], p[3][3]);
+}
+
 template<> std::ostream &operator<<(std::ostream &stream, ivec2 const &v)
 {
     return stream << "(" << v.x << ", " << v.y << ")";