From 54a39d8c1a132628e5cb4021fa748c70658fca9d Mon Sep 17 00:00:00 2001
From: Scott Lahteine <sourcetree@thinkyhead.com>
Date: Tue, 13 Oct 2015 03:59:04 -0700
Subject: [PATCH] Use a ternary in qr_solve.cpp

---
 Marlin/qr_solve.cpp | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/Marlin/qr_solve.cpp b/Marlin/qr_solve.cpp
index da17377f9..1e085c95b 100644
--- a/Marlin/qr_solve.cpp
+++ b/Marlin/qr_solve.cpp
@@ -1488,16 +1488,10 @@ void dswap(int n, double x[], int incx, double y[], int incy)
       x[i + 2] = y[i + 2];
       y[i + 2] = temp;
     }
-    if (0 <= incx)
-      ix = 0;
-    else
-      ix = (- n + 1) * incx;
-    if (0 <= incy)
-      iy = 0;
-    else
-      iy = (- n + 1) * incy;
   }
   else {
+    ix = (incx >= 0) ? 0 : (-n + 1) * incx;
+    iy = (incy >= 0) ? 0 : (-n + 1) * incy;
     for (i = 0; i < n; i++) {
       temp = x[ix];
       x[ix] = y[iy];