| Safe systems languages already existed before C was a thing. Modula-2 is just one example. Burrough B5000 was programmed in safe systems programming in 1961. https://en.wikipedia.org/wiki/Executive_Systems_Problem_Orie... https://en.wikipedia.org/wiki/NEWP "NEWP is a block-structured language very similar to Extended ALGOL. It includes several features borrowed from other programming languages which help in proper software engineering. These include modules (and later, super-modules) which group together functions and their data, with defined import and export interfaces. This allows for data encapsulation and module integrity. Since NEWP is designed for use as an operating system language, it permits the use of several unsafe constructs. Each block of code can have specific unsafe elements permitted. Unsafe elements are those only permitted within the operating system. These include access to the tag of each word, access to arbitrary memory elements, low-level machine interfaces, etc. If a program does not make use of any unsafe elements, it can be compiled and executed by anyone. If any unsafe elements are used, the compiler marks the code as non-executable. It can still be executed if blessed by a security administrator." Sounds similar to modern practices? Done before C and UNIX were a thing. C and UNIX have survived this long, because they go together as one, just like JavaScript is the king of the browser, C was the only way to go when coding on UNIX systems. |