Reintroduction to C
summary
C is framed as the right tool for embedded firmware, OS and language runtimes, with concrete rules and gotchas: C99 guarantees implicit return from main, puts/printf return semantics and futile deep error checks, integer promotions (everything converts to int), pointer decays to address of first element and one‑past pointer arithmetic, designated initializers and compound literals, size_t for indexing, malloc/free with null checks and goto cleanup idiom (used in Linux kernel), static vs automatic storage, struct alignment padding (example size 24), and UB from unspecified evaluation order producing different outputs across compilers.
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chapters (12)
- 0:00Introduction
- 5:23Hello
- 7:23Int
- 11:55Array
- 16:58SizeT
- 18:33GoTo
- 28:11Clean up
- 29:21Cooking
- 34:08Compounds
- 42:18Storage duration memory
- 45:45Static
- 51:02Memory
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