how to compile/jump-debug using cmake/gcc within vim - c++

I currently use vim/byobu-tmux to multiplex between a command line (cmake/gcc) and a vim session.
Is there a way to do the following directly within the vim session?
Compile within vim (I currently use a cmakedbg bash alias in a command line/bash session)
Jump to files/location where the compile has failed
all within vim, that would save me a lot of time.

Did you try
set makeprg=cmakedbg
Then
:make
should compile and if it fails it should automatically jump to the error (while :make! would compile without jumping to the error). This works usually, but might need some tweaking depending on the setup.
If you need to source .bashrc before cmakedbg works, you can make the shell interactive by
:set shellcmdflag=-ic
However, I always had problems with that. I know it's working for some people, but when I try that, vim is stopped by the interactive mode. I can get it back by typing fg, but that's not what I want.
I think the best way to do it is to set up a function in vim and do it without .bashrc.

Related

How can I make the gdb `disassemble` command use /s as a default option, through MI

I need to disassemble some C code, but I want to also show the source lines mixed in with the assembly code. The issue I have is that I'm using gdb through the MI interface, which calls disassemble (or equivalent, perhaps -data-disassemble?), and I have no control over the options sent with the command. If I did have access to the command, I could probably just use
-data-disassemble ... -- 1.
I've tried making a user-defined command, e.g.:
define dis
disassemble /s
end
but I don't know how to force using that command through gdb/mi. I also tried making an alias, but it creates a naming conflict ("Alias disassemble is the name of an existing command") and probably wouldn't work anyway because of the MI connection.
I'd like to just add a line to my .gdbinit file that forces the /s option to be a default for disassemble, but I can't find any documentation that shows how this can be done.
As a side note, I'm trying to accomplish this in MSVC 2019, and I can sort of do it manually using the instructions from Microsoft's MIEngine custom command doc. But this doesn't go through the usual gdb/mi interface, and just dumps text into the Command Window. I was able to set disassembly-flavor intel, which works in changing the assembly into Intel format, so it seems like what I want to accomplish is at least plausible.

Why isn't my terminal running my updated C++ code?

I am a new programmer and I am trying to use the terminal on my Mac to compile and run the C++ code I write using the Sublime text editor.
I am able to get my code to run using the terminal, however, whenever I make changes to my code on sublime and then re-compile it on my terminal, my terminal doesn't recognize my changes and keeps on running my original code.
Does anyone know what might be happening?
Thank you so much!
I can think of two possibilities that spring immediately to mind. If you're changing your code in the editor, and that's not being reflected in the compilation, then it's likely to be one of the following. Either:
you're not saving the file in the location you think you are; or
you're not saving the file at all.
The easiest way to tell if one of these is the case is to introduce an error into your code(a), like:
int my hovercraft = full of eels;
and make sure the compiler complains about it.
If you're not saving it at all, do so. If you're saving it in the wrong place, you can usually find out where just by doing a Save As and seeing where the default location is.
If you're annoyed that you have to save, and that computers should just "work"(b), Sublime Text has an auto-save feature that may come in handy, courtesy of one Lucy Bain. Instructions (paraphrased) are duplicated here in case that site ever disappears:
Open Sublime
Find Settings and edit the user window (under Sublime Text 2 > Preferences for Mac, just Preferences for Windows).
Add the line "save_on_focus_lost": true.
Save and close the file.
At that point, whenever you click away from a particular file, it should save it.
(a) Some developers seem to have little trouble doing this without even trying :-)
(b) A not unreasonable expectation for a Mac user :-)

How to make Vim format C++ code automatically as I type

I have setup clang-format to reformat the current line/selection when I press Ctrl-K in Vim (see the official documentation how to do that). However, it's annoying to be constantly pressing Ctrl-K whenever I edit a line.
Is there a way to make Vim call clang-format as I type or edit code automatically, without me having to press Ctrl-K? In other words, probably after each key stroke in insert mode?
I haven't seen anybody setup vim this way --- what are the potential problems with this setup?

Django -editing files in bash

I just installed Django on my Mac and I am trying to figure out a way to edit the python modules directly from the terminal.
I know I can view the contents of a file using the less command in the command line, but is there a way I can edit Django modules from the command line, as well? It's just kind of annoying having to switch between the command line and a text editor, so I was hoping I could do everything in one spot.
Thanks,
Jerry
EDIT: rephrased.
There are lots of TUI text editors available for *nix. vim and emacs are popular, and are available in several forms for OS X.
This question is a little confused.
There's no such thing as "editing in Python", or "editing in Bash". I don't know what you're regarding as the "Python" that you have to switch to, but most people using a Mac edit their Python files in something like Textmate. That can be always running, and the Django development server automatically reloads when you save changes to any of the files in use, so this is the often most convenient way of doing it.
Bash is the shell that runs inside the terminal. Instead of talking about "editing in Bash", I expect you mean "editing in the terminal". Of course, there are hundreds of editors that run inside the terminal. One that comes installed on the Mac is vim, which I use all the time - but it has its fair share of idiosyncrasies, and takes a lot of getting used to.
However, if anything, editing in vim inside the terminal seems like it would involve more "switching" rather than less. You'd either need to have a separate terminal tab, and switch between the one running the server and the one running vim, or continually quit your server to go into vim.

Is there a plugin for Vim that would help me debugging like Visual Studio?

The reason why I'm asking this, is because I'm coding in C++, in putty/ssh and I like the fact that I can code from pretty much everywhere without having to install anything.
So I'd like to have something that could help me debugging (viewing LIVE value of a variable, breakpoints, etc)
If you think that there's no such thing in this world, is there any good technique I could use to debug in command line?
Thanks
I've used gdb for command line debugging in the past with success:
http://www.gnu.org/software/gdb/
A decent tutorial can be found at:
http://www.cs.cmu.edu/~gilpin/tutorial/
vimgdb will give what you want. I've used it for about one year. The most interesting feature is:
Hightlight current line
List item
Can show disassembly code
Step into, Step over
inspect variables, memory address
Run all the underlying gdb command is possible
And, of course, set breakpoint, conditional breakpoint etc.
Highly customizable by vim key mapping and scripts.
Actually I use checkinstall to make an rpm for it, and installed it everywhere when I need to debug on the box.
I think it have the most important features I want from a visual debugger.
Have you tried gdb ? That's pretty much the command line debugger, but it's no vim plugin.
You have a script to do that: http://www.vim.org/scripts/script.php?script_id=1954
In my humble opinion, Vim is not designed to do such things and it is a bad idea to do so.