Re: C23 thoughts and opinions

On 26/05/2024 19:11, jak wrote:

David Brown ha scritto:

On 26/05/2024 17:10, jak wrote:

?
I really wrote that something similar (similar != equal) did g++ and
that, if you write c++ code in a file with the .c extension, the g++
compile it. I never wrote that it was automatically recognized.
In addition, you just explained why g++ compile a .c that contains c++
code. I don't understand: no what?
>

>
I made an error here - "g++ foo.c" /will/ treat the file as C++.  I apologise for that, as it made things a lot more confusing.
>
But that is not what you wrote.  Perhaps you didn't write what you intended to write.  You said that g++ somehow determines whether to compile code as C or C++ based on the /contents/ of the file, not the filename suffix.  And that is completely wrong.
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You also mixed up ".c" and ".C".  gcc considers ".c" to be C code, while ".C" (with a capital C) is considered C++.
>
>

 Sorry but no. I wrote that there are compilers who do it and when they
replied, bringing the gcc as an example, I replied that the g++ does
something similar.
 and no, I have not confused the .c with the .C:
 

You /did/ mix these things up - the Usenet posts are there for you, me, or anyone else to read.  But there seems little doubt now that you understand the difference between "gcc" and "g++", and between ".c" and ".C".  So I assume the mixup was a language issue - I fully understand that it's not always easy to communicate accurately in a different language, and even when you are as good as you are in English, sometimes there are miscommunications.
Whichever compiler you use, I strongly recommend using only ".c" for C files, and only ".cpp" for C++ files.  There are several other extensions used for C++, but IME ".cpp" is the most commonly used and supported by all C++ tools on all platforms.  ".C" (capital C) is a poor choice - it's hard to distinguish from ".c" (small C), and it will drive Windows users crazy.  And if you use gcc, then unless you can stick to a pure C++ setup and never use C, I recommend using "gcc" rather than "g++" for everything except the final linking stage (and even that is optional).  The "gcc" driver program does the right thing.