From a5bc89102e790d38d23a0a220ee2d42baee647a1 Mon Sep 17 00:00:00 2001
From: Colin Snover
Date: Mon, 6 Nov 2017 22:45:32 -0600
Subject: ALL: Remove obsolete register keyword

The register keyword was deprecated from the C++11 standard,
<http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4193.html#809>,
and removed from the C++17 standard,
<http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4340>, so
cannot exist in a well-formed C++17 program.

It has never done anything in GCC
<https://gcc.gnu.org/ml/gcc/2010-05/msg00113.html>
and because of the way it is specified in the standard, it is “as
meaningful as whitespace”
<http://www.drdobbs.com/keywords-that-arent-or-comments-by-anoth/184403859>.

The one remaining use of the register keyword is in the DS backend,
where it is used to create a local register variable using the
non-standard GCC Extended Asm feature.

Closes gh-1079.
---
 graphics/VectorRendererSpec.cpp | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

(limited to 'graphics/VectorRendererSpec.cpp')

diff --git a/graphics/VectorRendererSpec.cpp b/graphics/VectorRendererSpec.cpp
index 7d3cdff7c7..028f62101a 100644
--- a/graphics/VectorRendererSpec.cpp
+++ b/graphics/VectorRendererSpec.cpp
@@ -52,7 +52,7 @@ inline frac_t fp_sqroot(uint32 x) {
 	// decreasing values. By feeding it the sqrt of the previous old x, as well
 	// as the old x, it should be possible to compute the correct sqrt with far
 	// fewer than 23 iterations.
-	register uint32 root, remHI, remLO, testDIV, count;
+	uint32 root, remHI, remLO, testDIV, count;
 
 	root = 0;
 	remHI = 0;
@@ -443,10 +443,10 @@ namespace Graphics {
  */
 template<typename PixelType>
 void colorFill(PixelType *first, PixelType *last, PixelType color) {
-	register int count = (last - first);
+	int count = (last - first);
 	if (!count)
 		return;
-	register int n = (count + 7) >> 3;
+	int n = (count + 7) >> 3;
 	switch (count % 8) {
 	case 0: do {
 				*first++ = color;	// fall through
@@ -466,26 +466,26 @@ void colorFillClip(PixelType *first, PixelType *last, PixelType color, int realX
 	if (realY < clippingArea.top || realY >= clippingArea.bottom)
 		return;
 
-	register int count = (last - first);
+	int count = (last - first);
 
 	if (realX > clippingArea.right || realX + count < clippingArea.left)
 		return;
 
 	if (realX < clippingArea.left) {
-		register int diff = (clippingArea.left - realX);
+		int diff = (clippingArea.left - realX);
 		realX += diff;
 		count -= diff;
 	}
 
 	if (clippingArea.right <= realX + count) {
-		register int diff = (realX + count - clippingArea.right);
+		int diff = (realX + count - clippingArea.right);
 		count -= diff;
 	}
 
 	if (!count)
 		return;
 
-	register int n = (count + 7) >> 3;
+	int n = (count + 7) >> 3;
 	switch (count % 8) {
 	case 0: do {
 		*first++ = color;	// fall through
-- 
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