We’re standing on their shoulders
And so are they.
Slide 6
Slide 6 text
2. Writing C is scary.
Slide 7
Slide 7 text
Memory management is hard.
Much like the video at
youtube.com/watch?v=718fskG2n34
C has no safety belts.
Slide 8
Slide 8 text
Heartbleed
Ghost
CVE-2015-0080
I’m not smarter than the glibc or openssl devs.
Slide 9
Slide 9 text
But what if you need to?
Slide 10
Slide 10 text
The Dream
C’s Performance, Portability, and Embeddability.
With guaranteed safety.
Slide 11
Slide 11 text
Rust.
Slide 12
Slide 12 text
Stack vs. Heap
Slide 13
Slide 13 text
Stack Heap
Fast but tiny Slow but huge
Function locals Globals
Managed by CPU Unmanaged
Only small values of known, fixed size can go on the stack.
Growable things like vectors must go on the heap.
Slide 14
Slide 14 text
Managed vs unmanaged
Slide 15
Slide 15 text
No content
Slide 16
Slide 16 text
No content
Slide 17
Slide 17 text
No content
Slide 18
Slide 18 text
No content
Slide 19
Slide 19 text
Ownership
Slide 20
Slide 20 text
No content
Slide 21
Slide 21 text
No content
Slide 22
Slide 22 text
No content
Slide 23
Slide 23 text
No content
Slide 24
Slide 24 text
No content
Slide 25
Slide 25 text
No content
Slide 26
Slide 26 text
No content
Slide 27
Slide 27 text
No content
Slide 28
Slide 28 text
No content
Slide 29
Slide 29 text
No content
Slide 30
Slide 30 text
No content
Slide 31
Slide 31 text
No content
Slide 32
Slide 32 text
No content
Slide 33
Slide 33 text
No content
Slide 34
Slide 34 text
No content
Slide 35
Slide 35 text
No content
Slide 36
Slide 36 text
Enforced Statically at Compile Time
No dangling pointers
No use after free vulnerabilities
No pointer arithmetic
No null pointer dereferencing
This is a “Zero-Cost Abstraction.”