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bradsoblesky
bradsoblesky asked
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Last Modified: 2010-04-15
What is the difference between C and C++?
What is the Programing language used most for windows programs?
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Commented:
One more thing does C++ exclude anything that C had?
I think this question should be framed as : What are the features in C that is different / not supported in C++?

Commented:
There are several obscure C features not supported in C++.  However, you're better off not using them at all.
Examples:
- Old (K&R) style function arguments declaration (use the new style).
- Implicit conversions (use explicit casts).
- F() means "unknown arguments" in C, "no arguments" in C++ (use F(void) in C).
- Etc.

Commented:
>> What is the Programing language used most for windows programs?

>>  2. Which Programming Language - VB !  

so VisualBasic is programming language ???  i am confused ....

you'd better learn some C++ (VC) or Pascal (Delphi ) ...

Author

Commented:
Is Windows 95 or 98 written in C or C++ or what language?

Commented:
Microsoft started it in Pascal, then changed the language to C (maybe C++ ???) ...
 so the core Windows functions still use Pascal calling conventions (for backward compatibility ), but probably they are implemened in C.

some of the real fundamental stuff (drivers etc.) is writtenin Assembler of course ...

but making Windows is real "system programming", "aplication programming" is very different ...

Author

Commented:
Thanks for your time I was trying to figure out what language to buy.
Microsoft started it in Pascal - wrong AFAIK

Previously versions of Windows were written in assembler and I think C.  Windows 3.0 internals are full of hand-coded assembler stuff to save a few bytes

Current versions assembler, C, and C++.

The rumour is that Windows using Pascal calling convention because it took 1 less disk for the installation (1 disk times a million (or whatever number) installations is worth saving).  Pascal calling convention makes shorter code than C calling convention


Commented:
>> Pascal calling convention makes shorter code than C calling convention

GOOD compiler makes much more shorter code that bad compiler ... as far as i remember the only difference between C and Pascal calling convestions is that they put parameters in stack in different way - there is no aditional code !!!

and pure logic tells me that if your code is using Pascal calling convention, you've propably written (at least) the first version in Pascal (and that is probably Windows 1.x / 2.x) ... from now on the calling convention remains the same - for backward compatibility ... (and probably Windows is rewritten in C / Assempler a long time ago ... but i don't think there is so much Assembler code looking at the speed of my Win95/WinNT :-)

>> Windows 3.0 internals are full of hand-coded assembler stuff to save a few bytes
:-)
i've programming in pure Assembler for more then 5 years ... and i can tell you that good C compiler (Watcom for example) can make much more faster and smaller code that a single human.

but there are always rumours ...
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