German: syntax-semantics

What is semantics VS Syntax?

Semantics, on the other hand, is about the meaning of a program (or other chunk of source code).

And sometimes the line between the two can be blurry.

One way to understand the distinction is to look at the kinds of errors you get when your program's syntax or semantics is incorrect.

A syntax error is a failure of the source code to match the language grammar, for example, not having a semicolon where one is required.

A semantic error is a failure to satisfy other language requirements (what C, for example, calls "constraints"); an example might be writing x + y where x and y are of incompatible types. The language grammar tells you that an addition looks like something + something, but it's not powerful enough to express the requirements on the types of the left and right operands.

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