Use of Goto in Systems Code – Embedded in Academia
The goto wars of the 1960s and 1970s are long over, and goto is dead—except that it isn’t. It has a number of legitimate uses in well-structured code including an idiom seen in systems code where a failure partway through a sequence of stateful operations necessitates unwinding the operations that have already completed. For example: int init_device (void) { if (allocate_memory() != SUCCESS) goto
Syntax diagram - Wikipedia
Syntax diagrams (or railroad diagrams) are a way to represent a context-free grammar. They represent a graphical alternative to Backus–Naur form, EBNF, Augmented Backus–Naur form, and other text-based grammars as metalanguages. Early books using syntax diagrams include the "Pascal User Manual" written by Niklaus Wirth[1] (diagrams start at page 47) and the Burroughs CANDE Manual.[2] In the compila
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