From 51c1ff9df891e2f2bbdaba9627fe0611165347cf Mon Sep 17 00:00:00 2001
From: Jet Hughes <jethughes0@gmail.com>
Date: Thu, 11 Aug 2022 11:09:21 +1200
Subject: [PATCH] vault backup: 2022-08-11 11:09:21

---
 .../notes/10-intro-to-c-arrays-malloc-free.md | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 content/notes/10-intro-to-c-arrays-malloc-free.md

diff --git a/content/notes/10-intro-to-c-arrays-malloc-free.md b/content/notes/10-intro-to-c-arrays-malloc-free.md
new file mode 100644
index 000000000..90f453a16
--- /dev/null
+++ b/content/notes/10-intro-to-c-arrays-malloc-free.md
@@ -0,0 +1,30 @@
+---
+title: "10-intro-to-c-arrays-malloc-free"
+aliases: 
+tags: 
+- cosc204
+---
+
+# Arrays
+- must declare with size
+
+``` c
+uint32_t array[10];
+float matrix[5][6];
+```
+
+- do not have methods
+	- array.size etc
+- not bounds checked
+	- can write past the end
+- to know must keep trach yourself or use sentinel value
+	- 'H' 'e' 'l' 'l' 'o' '\0' <- sentinel value
+
+``` c
+char *check = thing;
+
+while(*check != '\0')
+	check++
+
+length = check - thing
+```
\ No newline at end of file