From a24b65b73cf4f3da65c0ff41a6d383f354863e71 Mon Sep 17 00:00:00 2001 From: Iyassou Shimels <36436370+iyassou@users.noreply.github.com> Date: Thu, 21 Nov 2019 18:44:19 +0000 Subject: [PATCH] Update README.md --- README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.md b/README.md index 198cb01..358829f 100644 --- a/README.md +++ b/README.md @@ -71,7 +71,7 @@ __MAX_RAINDROPS = const(20) # [...] ``` -`const` is similar to the `#define` pre-processor in C, which carries out literal replacement of a value wherever the variable is mentioned, saving memory. The double underscores at the beginning of a variable name prevent the variable from being loaded into the global dictionary: we choose to do so because we don't need/want the variable to be accessible at runtime. +`const` is similar to the `#define` pre-processor directive in C, which carries out literal replacement of a value wherever the variable is mentioned, saving memory. The double underscores at the beginning of a variable name prevent the variable from being loaded into the global dictionary: we choose to do so because we don't need/want the variable to be accessible at runtime. Both of these are functionally-speaking unnecessary, but good practise when dealing with microcontrollers as they don't have the same memory abundance as everyday computers.