I handed in a C program which contained a lot of verbose printf debug lines. I always compiled it command line with gcc.
Now it's been turned into an Eclipse-CDT (Helios) project, and my
\n
no longer do carriage returns. I get an unreadable "staircase" in my console.
RCINAHFM. Is there a check box in the IDE I need to modify or do I need to go back and carefully modify hundreds of lines of code?
Any help greatly appreciated.
Bert
RCINAHFM=Remaining calm / I need a hug from Mom
Eclipse does not compile C all by itself. It uses an external compiler for that, usually gcc. So it’s highly unlikely that the compiled program is incorrect, unless the compiler configuration within Eclipse does something very, very weird.
If you get a “staircase”, it sounds as if the new line part is carried out, but no carriage return happens. This might happen under systems that use CR/LF as their line ending, such as DOS/Windows.
Unfortunately, you give way to little detail. Are you using Unix or Windows? Where does the program run, in an XTerm, a Windows DOS console, within the Eclipse console? If the answer is “Eclipse console”, then have you tried running it in another terminal instead; or tried running your original program in the Eclipse console? Are you using printf or some other function?
Related
I am working on making a pretty trivial change to an old existing pascal source file. I have the source code, but need to generate a new hex file with my changes.
First, I tried compiling with "Embedded Pascal", which is the program used by my predecessor. Unfortunately, it is an unregistered copy and gives the message that the file is too large for the unregistered version. Support for and even the homepage for the project has disappeared (old), so I have no idea how I would register.
I tried a couple other compilers, "Free Pascal" and "Turbo51", and they are both giving similar errors:
Filename.pas (79): Error 36: BEGIN expected.
Linkcode $2E
^
The source code begins with
Linkcode $2E
LinkData $0A // normally 8 - make room for capacitance data
Program Main; Vector LongJmp Startup_Vector; //This inserts the start to the main routine.
uses IntLib;
I'm not well-versed in Pascal or embedded programming, but as I understand it, the Linkcode and LinkData lines are required to set up the RAM as needed. Following the "Const" and "var" declarations are subroutines that indeed start with procedure... begin... end.
I realize that Pascal is a bit out of date, but we are stuck with it and our old micro. Any ideas why previously working source code with trivial changes cannot be compiled? I am willing to consider other compilers, including paid options, if any are available with decent support. I am using Windows 10 x64 processor to compile, and flashing to an Atmel 89C51RC2.
If more source code is needed for diagnosis, please let me know what in particular, as I'll need to change some proprietary information before posting. Thanks!
Statements like linkcode and linkdata are not general, but target and compiler specific. Unless you have the know-how to reengineer to a different compiler, getting the original one is best.
Thanks to all for the information. While I didn't find an exact solution here, your comments were helpful for me to understand just how compiler-specific the Pascal code was.
In the end, I was able to get into my predecessors files and transfer registration, solving the issue for now. As suggested, I think I will port to C in the future to avoid fighting all the unsupported compiler nonsense.
When analysing my code using valgrind (WSL) only output I get is list of problems found by it.
On the contrary in Clion documentation in valgrind section, images show that output (instruction pointer) can be directly interpreted into code line that has triggered it, as shown on the image below.
Whan do I need to do to toggle on this display mode or at least code line which triggered it, I am using CLion 2022.2.4?
I have already tried playing with diffrent flags but I was unable to toggle this view on.
This could be related to this bugzilla item (but not likely).
I tried it with CLion 2022.3.1 on FreeBSD 13.1. It was painful to get a project setup (clion didn't know where clangd or ninja were, and used a load of unrecognized clangd options).
After that no real problems.
I'm fairly certain none of the Valgrind devs uses WSL so the chances of this getting analyzed and fixed are very low.
For example:
http://www.youtube.com/watch?v=tKTZoB2Vjuk (# 5 min)
I have no idea how one would go about writing code and making it work without an IDE but it seems like a useful thing to know how to do. Thanks!
Open an editor. Edit the code. Invoke the compiler. Run the executable.
Can't say much more without further details on your part.
What they're showing in the video though is the Python REPL.
I wrote simple script test
echo hello #<-- inside test
if I press one time enter after hello, my script will run, if I don't press - it will not, if two times I'll receive my hello and + command was not found, can somebody please explain me this behavior thanks in advance
This is not a part of the code, this is actual code
and I run it on C-Shell, via editor of Windows
command:
source ./test
Some points:
You should not ask questions tagged with both the [csh] and [bash] tags - these are completely different programs and implement completely different script programming languages
You should never name a script (or any other program) test, as this is the name of a built-in feature of bash
Post the actual code you are asking about, without annotations and show how you run it.
I have tried a similar case. I wrote a script like yours, saved it using Windows Notepad (with CRLF line terminators) and run in bash with the same effect as yours in csh. The problem is bash (so csh as well) does not understand Windows' 2-byte line terminators, which are interpreted as commands, which obviously do not exist.
The solution is: change your editor or configure your current editor to use unix line terminators.
You can try for example Notepad++. Remember to change the line terminators to LF.
I realized, when just asking a question, I don't understand all the components that are part of the coding process.
This seems a silly question, but I can't find a definitive answer on Google, Wiki, nothing.
What exactly are all the parts called, and how do they work and intertwine? I'm talking whatever you type code into, whatever checks that for errors, compiles it, and runs it.
I'd appreciate any links, repeats, etc. I apologize for such a bland, stupid question.
EDIT: Well, I'm trying to start Perl, so anything about Perl would help. Like, how to use Notepad++ and eventually compile Perl.
Write code
Run code in one of two ways[*]
Compiled languages (C, C++, D, Java, C#)
Compile the code into an executable file with the compiler tool.
Run the executable
Interpreted languages (Perl Python Ruby Lua Haskell Lisp & more)
Run the code in an interpreter, e.g., perl foo.pl
Debug code.
edit: Since the question was refined to be the Perl development cycle...
You will need an editor and a 'shell', which is used to command the system with. In particular, you want a 'command-line interface'. On Windows, you start this with running cmd.exe on the Run dialog (Windows + R is the shortcut).
You see a strange black and white box with a blinking cursor, reminding you of ancient systems redolent of gurus and wizards. You panic and refer to Google, getting a web page. Finding the command to change directory and list files is recommended...
Upon arriving at the directory where you stored your Perl file, you issue the command perl myfilename.pl, where myfile.pl is the file you saved. As is common for programming, you find some errors that appear to be incomprehensible, and you refer to Stackoverflow.com once again...
* I have elided, glossed, and moved past many of the details, as this is an introductory question. A full discussion is known as "senior-level course on compilers".