Add assert to mul_v3_m3v3 and mul_v2_m3v3,

So they're not likely to be called with bad arguments.

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/blenlib/intern/math_matrix.c b/source/blender/blenlib/intern/math_matrix.c
index 99342c4d6dc..611b3298c38 100644
--- a/source/blender/blenlib/intern/math_matrix.c
+++ b/source/blender/blenlib/intern/math_matrix.c
@@ -433,6 +433,8 @@ void mul_m4_v4d(float mat[4][4], double r[4])
 
 void mul_v3_m3v3(float r[3], float M[3][3], const float a[3])
 {
+	BLI_assert(r != a);
+
 	r[0] = M[0][0] * a[0] + M[1][0] * a[1] + M[2][0] * a[2];
 	r[1] = M[0][1] * a[0] + M[1][1] * a[1] + M[2][1] * a[2];
 	r[2] = M[0][2] * a[0] + M[1][2] * a[1] + M[2][2] * a[2];
@@ -440,6 +442,8 @@ void mul_v3_m3v3(float r[3], float M[3][3], const float a[3])
 
 void mul_v2_m3v3(float r[2], float M[3][3], const float a[3])
 {
+	BLI_assert(r != a);
+
 	r[0] = M[0][0] * a[0] + M[1][0] * a[1] + M[2][0] * a[2];
 	r[1] = M[0][1] * a[0] + M[1][1] * a[1] + M[2][1] * a[2];
 }