Add missig docs and fix some small review findings.

code/simd.cpp

@@ -43,34 +43,36 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "simd.h"
 
 namespace Assimp {
-    bool CPUSupportsSSE2() {
+
+bool CPUSupportsSSE2() {
 #if defined(__x86_64__) || defined(_M_X64)
-        //* x86_64 always has SSE2 instructions */
-        return true;
+    //* x86_64 always has SSE2 instructions */
+    return true;
 #elif defined(__GNUC__) && defined(i386)
-        // for GCC x86 we check cpuid
-        unsigned int d;
-        __asm__(
-            "pushl %%ebx\n\t"
-            "cpuid\n\t"
-            "popl %%ebx\n\t"
-            : "=d" ( d )
-            :"a" ( 1 ) );
-        return ( d & 0x04000000 ) != 0;
+    // for GCC x86 we check cpuid
+    unsigned int d;
+    __asm__(
+        "pushl %%ebx\n\t"
+        "cpuid\n\t"
+        "popl %%ebx\n\t"
+        : "=d" ( d )
+        :"a" ( 1 ) );
+    return ( d & 0x04000000 ) != 0;
 #elif (defined(_MSC_VER) && defined(_M_IX86))
-        // also check cpuid for MSVC x86
-        unsigned int d;
-        __asm {
-            xor     eax, eax
-            inc eax
-            push ebx
-            cpuid
-            pop ebx
-            mov d, edx
-        }
-        return ( d & 0x04000000 ) != 0;
-#else
-        return false;
-#endif
+    // also check cpuid for MSVC x86
+    unsigned int d;
+    __asm {
+        xor     eax, eax
+        inc eax
+        push ebx
+        cpuid
+        pop ebx
+        mov d, edx
     }
+    return ( d & 0x04000000 ) != 0;
+#else
+    return false;
+#endif
 }
+
+} // Namespace Assimp