Changeset 768Tweet

Timestamp:

May 15, 2011, 1:16:18 PM (10 years ago)

Author:

sam

Message:

core: add the unary minus operator to vectors.

Location:

trunk

Files:

• src/matrix.h (modified) (1 diff)
• test/matrix.cpp (modified) (2 diffs)

trunk/src/matrix.h

@@ -101 +101 @@
         for (int n = 0; n < elems; n++) \
             ret[n] = static_cast<U>((*this)[n]); \
+        return ret; \
+    } \
+    \
+    inline Vec##elems<T> operator -() const \
+    { \
+        Vec##elems<T> ret; \
+        for (int n = 0; n < elems; n++) \
+            ret[n] = -(*this)[n]; \
         return ret; \
     } \

trunk/test/matrix.cpp

@@ -28 +28 @@
     CPPUNIT_TEST(test_vec_eq);
     CPPUNIT_TEST(test_vec_lt);
+    CPPUNIT_TEST(test_vec_unary);
     CPPUNIT_TEST(test_mat_det);
     CPPUNIT_TEST(test_mat_mul);
@@ -123 +124 @@
     }
 
+    void test_vec_unary()
+    {
+        vec2 a(1.0f, 3.0f);
+        vec2 b(-1.0f, -3.0f);
+
+        CPPUNIT_ASSERT(a == -b);
+        CPPUNIT_ASSERT(-a == b);
+    }
+
     void test_mat_det()
     {