From e40564106cca106fb822181cc870c9ae353fbc14 Mon Sep 17 00:00:00 2001
From: DragonGeo2 <dragongeo2@users.sourceforge.net>
Date: Thu, 27 May 2010 23:09:03 +0100
Subject: [PATCH] Make AsQuaternion a const member function (cherry-picked from
aedra svn revision 1).
---
include/nif_math.h | 2 +-
src/nif_math.cpp | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/nif_math.h b/include/nif_math.h
index 8ff3a6b6..2a55a940 100644
--- a/include/nif_math.h
+++ b/include/nif_math.h
@@ -621,7 +621,7 @@ struct Matrix33 {
/*! Returns a quaternion representation of the rotation stored in this matrix.
* \return A quaternion with an equivalent rotation to the one stored in this matrix.
*/
- NIFLIB_API Quaternion AsQuaternion();
+ NIFLIB_API Quaternion AsQuaternion() const;
/*! Calculates the determinant of this matrix.
* \return The determinant of this matrix.
diff --git a/src/nif_math.cpp b/src/nif_math.cpp
index 48e8a1e7..a7ffb8d4 100644
--- a/src/nif_math.cpp
+++ b/src/nif_math.cpp
@@ -298,14 +298,14 @@ Matrix33::Matrix33() {
*this = Matrix33::IDENTITY;
}
-Quaternion Matrix33::AsQuaternion() {
+Quaternion Matrix33::AsQuaternion() const {
Quaternion quat;
float tr, s, q[4];
int i, j, k;
int nxt[3] = {1, 2, 0};
- Matrix33 & m = *this;
+ const Matrix33 & m = *this;
// compute the trace of the matrix
tr = m[0][0] + m[1][1] + m[2][2];
--
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