The similarities between C and C are:
Both languages have the same syntax.
The code structure of the two languages is the same.
The assembly of both languages is roughly the same (not 100% sure, but should give the syntax and syntax are similar)
They share the same basic syntax. Almost all C operators and keywords exist in C and do the same thing.
Although C's syntax is slightly more extended than Ruby's, with some new operators introduced for all OOP features, they are all similar.
The basic memory model of both is very close to the hardware.
The same concepts of stack, heap, file scope and static variables exist in both languages.
Main differences:
C can be said to be a superset of C. The main features added in C are object-oriented programming, exception handling and richer libraries.
The detailed differences between C and C are:
This article is Regarding the introduction of the difference between C and C, I hope it will be helpful to friends who need it!
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