From ebf156f6ac77400e041fdef43f7efb182fb3081c Mon Sep 17 00:00:00 2001
From: grammers <samkar-4@student.ltu.se>
Date: Wed, 14 Feb 2018 17:11:13 +0000
Subject: [PATCH] bare4: tack 2
---
examples/.bare4.rs.swp | Bin 16384 -> 20480 bytes
examples/bare4.rs | 7 +++++--
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/examples/.bare4.rs.swp b/examples/.bare4.rs.swp
index 64198082dbcbcae4f408ab2afce55b6db5ab4f55..61ee4b1433b1f23c9614525fa4cd5f8b47ea02f2 100644
GIT binary patch
delta 645
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C=#jht
delta 262
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diff --git a/examples/bare4.rs b/examples/bare4.rs
index a954cea..4262927 100644
--- a/examples/bare4.rs
+++ b/examples/bare4.rs
@@ -27,8 +27,8 @@ use address::*;
#[inline(always)]
fn read_u32(addr: u32) -> u32 {
- unsafe { core::ptr::read_volatile(addr as *const _) }
- //core::ptr::read_volatile(addr as *const _)
+ //unsafe { core::ptr::read_volatile(addr as *const _) }
+ core::ptr::read_volatile(addr as *const _)
}
#[inline(always)]
@@ -83,10 +83,13 @@ fn main() {
// 2. comment out line 30 and uncomment line 31 (essentially omitting the `unsafe`)
// what was the error message and explain why,
// ** your answer here **
+// call to unsafe function recvier unsafe function or blok
//
// digging a bit deeper, why do you think `read_volatile` is declared `unsafe`
// (https://doc.rust-lang.org/core/ptr/fn.read_volatile.html, for some food for thought )
// ** your answer here **
+// it is reading a operation from a perifial. perifials ar critical resorses and writ operations
+// kan cas race condition in combination with read.
//
// commit your answers (bare4_2)
//
--
GitLab