From a9979ada477c74be567f8df47ae8bd9a8b75f192 Mon Sep 17 00:00:00 2001 From: Tim Joseph Dumol Date: Tue, 5 Aug 2014 01:30:53 +0800 Subject: [PATCH] doc: Fix the 30-minute intro to use += operator. The 30-minute intro had a comment mentioning that `+=` will be included in the future. It's already included, and this fixes it to use `+=`. --- src/doc/intro.md | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/src/doc/intro.md b/src/doc/intro.md index 128d5c9d320..6deaa50867b 100644 --- a/src/doc/intro.md +++ b/src/doc/intro.md @@ -359,10 +359,11 @@ fn main() { // Take the lock, along with exclusive access to the underlying array let mut numbers = numbers_lock.lock(); - // This is ugly for now, but will be replaced by - // `numbers[num as uint] += 1` in the near future. + // This is ugly for now because of the need for `get_mut`, but + // will be replaced by `numbers[num as uint] += 1` + // in the near future. // See: https://github.com/rust-lang/rust/issues/6515 - *numbers.get_mut(num as uint) = *numbers.get_mut(num as uint) + 1; + *numbers.get_mut(num as uint) += 1; println!("{}", (*numbers)[num as uint]);