Do we define data types by defining classes in that order?

[Ostronomos]

Also, I am curious to know why the compiler requires separate compilation for its programs and what is the need to write our own header files? Is it to avoid clashes between entities such as variables when defining them between multiple files?

 

[sun rise]

What language are you referring to?

 

[Polymath257]

What language are you referring to?

I'm guessing C++ : object oriented and header files.

 

[sun rise]

I'm guessing C++ : object oriented and header files.

Could be.

 

[icehorse]

Also, I am curious to know why the compiler requires separate compilation for its programs and what is the need to write our own header files? Is it to avoid clashes between entities such as variables when defining them between multiple files?

I find a couple of details missing in the OP, but I think you're on the right track when you're thinking of name spaces.

 

[Ostronomos]

I find a couple of details missing in the OP, but I think you're on the right track when you're thinking of name spaces.

Is the preprocessor commonly used for separate compilation? I don't think it's related to namespaces.

 

[icehorse]

Is the preprocessor commonly used for separate compilation? I don't think it's related to namespaces.

As I hinted at before, I'd need more details about the language, language version, and compilers versions, and OS.

 

[Ostronomos]

As I hinted at before, I'd need more details about the language, language version, and compilers versions, and OS.

In c++ the preprocessor is useful for defining multiple header files, as unrelated to the separate compilation for variables. My question failed to distinguish between the two. Correct?

 

[icehorse]

C/C++ Preprocessors - GeeksforGeeks

The basic idea is that a program is usually created from some combination of existing code and your code. The preprocessor finds the existing code your code needs.

 

[Ostronomos]

Does the compiler give an error message if one fails to properly define and declare the variable in proper separate compilation format? I believe the preprocessor is used for safely dividing a class definition into multiple header files correct?

 

[Joseph Piccolo]

A data type, in programming, is a classification that specifies which type of value a variable has and what type of mathematical, relational or logical operations can be applied to it without causing Essays on Technology, Free Examples, Topics, Titles, Outlines | TopEssayWriting an error. A class is a type of a data type. It allows you to declare a variable along with its datatype.

 

[Ostronomos]

Why is defining so many objects, classes and headers common to the language?