# HG changeset patch
# User František Kučera <franta-hg@frantovo.cz>
# Date 1513955456 -3600
# Node ID 1ecfa42ca0d284096551a111ad573898e5198f42
# Parent  1d1cc6552542237b94fa9c2f0d0b2298d362cd58
local variables inside switch

diff -r 1d1cc6552542 -r 1ecfa42ca0d2 c++/rgb-assembler/rgb-assembler.cpp
--- a/c++/rgb-assembler/rgb-assembler.cpp	Fri Dec 22 00:21:29 2017 +0100
+++ b/c++/rgb-assembler/rgb-assembler.cpp	Fri Dec 22 16:10:56 2017 +0100
@@ -14,6 +14,8 @@
 typedef uint8_t sleep_t;
 typedef uint8_t color_t;
 
+// TODO: strong typedefs http://www.boost.org/doc/libs/1_61_0/libs/serialization/doc/strong_typedef.html ?
+
 const address_t MEMORY_SIZE = 1024;
 
 const command_t CMD_GOTO = 0x70;
@@ -76,34 +78,38 @@
 		command_t ch = read<command_t>(memory, i);
 		wprintf(L"%02X  ", ch);
 
-		color_t r;
-		color_t g;
-		color_t b;
-
-		sleep_t delay;
-
 		switch (ch) {
 			case CMD_GOTO:
+			{
 				i = read<address_t>(memory, i);
 				wprintf(L"GOTO %*d\n", 5, i);
 				break;
+			}
 			case CMD_SLEEP:
-				delay = read<sleep_t>(memory, i);
+			{
+				sleep_t delay = read<sleep_t>(memory, i);
 				wprintf(L"SLEEP %*d ms\n", 4, delay);
 				this_thread::sleep_for(chrono::milliseconds(delay));
 				break;
+			}
 			case CMD_COLOR:
-				r = read<color_t>(memory, i);
-				g = read<color_t>(memory, i);
-				b = read<color_t>(memory, i);
+			{
+				color_t r = read<color_t>(memory, i);
+				color_t g = read<color_t>(memory, i);
+				color_t b = read<color_t>(memory, i);
 				wprintf(L"COLOR  %02X %02X %02X\n", r, g, b);
 				break;
+			}
 			case CMD_END:
+			{
 				wprintf(L"END\n");
 				i = MEMORY_SIZE;
 				break;
+			}
 			default:
+			{
 				wprintf(L"invalid command\n");
+			}
 		}
 
 	}