>From 7bf9ee029829a53009e29ea23b287bb874bd8ee4 Mon Sep 17 00:00:00 2001 From: Akira Yokosawa <akiyks@xxxxxxxxx> Date: Fri, 14 Sep 2018 22:50:04 +0900 Subject: [PATCH 2/2] count: Reword Quick Quiz 5.6 to adjust context count_nonatomic.c has lost the explicit "++" operator, so this is my humble attempt to update the question. Signed-off-by: Akira Yokosawa <akiyks@xxxxxxxxx> --- Paul, Does this change look reasonable to you? I'm quite sure you will come up with something better. ;-) Thanks, Akira -- count/count.tex | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/count/count.tex b/count/count.tex index cfdacb5..6a48b99 100644 --- a/count/count.tex +++ b/count/count.tex @@ -193,7 +193,9 @@ Although approximate values do have their place in computing, accuracies far greater than 50\,\% are almost always necessary. \QuickQuiz{} - But doesn't the \co{++} operator produce an x86 add-to-memory + But doesn't a smart compiler prove + line~\ref{ln:count:count_nonatomic:inc-read:inc} is equivalent + to the \co{++} operator and produce an x86 add-to-memory instruction? And won't the CPU cache cause this to be atomic? \QuickQuizAnswer{ -- 2.7.4