In my new project I have to deal with some Pro*C code and as a part of the project require to compile the entire code as there is a minor change in a header file. Now, to incorporate the changes I will have or recompile the entire application code, which I did. However the sizes of the new executable do not match the old ones, even for the code where the header file is not used.
Can someone help ?
Why do you think that even if you make some changes to the code, the executable will be of same size ? It can vary. Please check if the changes you made to the code are not making any difference to the existing functionality of the code rather than checking the size of the exe file.
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Alright so I'm using the "Catch2" framework for C++ Unit Testing and in my "testMain.cpp" (Doesn't matter) I include the single header version of it #include "Catch.hpp".
The problem is every time I write just a small test, I have to compile the program in order to see the outputs again. But the single header is something like 70000 lines and it takes FOREVER.
I understand that with source files you can simply compile them into object files and after that link them. So if you are using the same source file for just linking there is no really a need to recompile it over again.
So the point of this question is, Is it possible to somehow compile the Catch.hpp file and just use it as a link after words? Or in order to slow it down do I have to get the multi-header version of the framework?
Thanks in Advance!
Have you read https://github.com/catchorg/Catch2/blob/devel/docs/slow-compiles.md ?
It is recommended to move the tests main function to a separate file, so that the compile intensive parts are only compiled once.
I'm using add_custom_command() to generate some files. ninja clean removes them, as it should. One of the files is intended as a default/example implementation, to be modified by the user. It is only generated if it does not already exist. I would like for ninja clean not to remove this file.
I have tried a number of things but without success:
add_custom_target(): CMake complains about the missing file unless I name it in BYPRODUCTS, but doing this also leads to removal on clean
set_file_properties(... GENERATED FALSE) doesn't work because CMake complains about the file missing.
set_directory_properties() failed in a similar way: "folder doesn't exist or not yet processed" (it does exist)
I previously generated the example implementation and just let the user copy it or model their code on it. This works, but isn't entirely satisfactory. Is my use-case so unlikely that CMake doesn't support it?
I am afraid you requirment (conceptually, have make create something which make clean does not remove) is rather unusual. I can think of two potential solutions/workarounds.
One, move the file's generation to CMake time. That is, create it using execute_process() instead of add_custom_command(). This may or may not be possible, based on whether the file-generation process (the current custom command) depends on the rest of the build or not.
Two, totally hide the example file's existence from CMake. That is, have the custom command also generate some other file (maybe just a timestamp file) and have its driving custom target depend on that one instead. Do not list the example file as ither the custom command's dependency, output, or byproduct. That way, nothing will depend on it and neither CMake nor Ninja should not care whether it exists or not, so they will not complain or try to clean it up.
If it is an example for the user, it should not be in your build folder, but in the install folder. I don't see why you would need add_custom_command or the other commands you listed.
Therefore, you have to provide install() instructions.
You can then call make install. Cleaning will not remove those and only installing again will overwrite them if necessary.
For those, who come here a long time after the original question was asked (like me), I'll write my solution:
The tool called in add_custom_command generates two files with identical content:
one that is saved in sources, never mentioned anywhere
and one that's marked as byproduct, and then is depended on
So the first one is the file we wanted in the first place.
And the second one is actually used in build process, and gets deleted on clean.
For me the issue is that I actually want to save generated files in VCS so I can track changes. And this approach gives ne what I need.
In VB6 I had (example) the following directories:
CommonCode
Parser
OrbitalDynamics
DnD
RelativisticBang
The first is standard inclusions I use (constants.vb, science.vb, constAstro.vb, DnD.vb...) while the others are projects who all use one or more of the common code files.
If I loaded OrbitalDynamics and, while in it, added a new constant in constants.vb then the next time I loaded the others, they also had the new constant immediately available.
I've rebuilt the common code files for VB2008Exp. I'm now trying to rebuild some of the projects. The problem is that I've not found a way to bring in the common code files. Every time I've tried it's copied them into the project rather than referenced them. Copying is, obviously, useless for the idea of common code.
Hopefully someone out there knows what I've missed, or knows some other method of using common code files in VB2008Exp. I can do this sort of thing in CPP, in C (both in Linux), and in VB6, but so far VB2008Exp has been very intractable.
A number of times now the auto generated Swift.h file that's required to use swift code in objective-c is not being found.
I've removed and reinstalled Xcode. Made sure all the correct boxes for it to be generated are checked and that I'm using #objc on Swift classes.
Sometimes it works fine but then there are significant periods where for an unknown reason its no longer able to find that file.
The app does build successfully, but the editor after building claims the file is missing.
The project this is being used in has multiple targets but I've made sure that the Swift.h file is using the same name in all targets.
At this point it seems there is no way to consistently have the file be available for auto completion purposes.
Any suggestions on what else to try would be appreciated as I'm at a loss.
After seeing this issue occur randomly a number of times I discovered that I needed to build all the targets for this app. Doing that meant that the -Swift.h file that was missing was now available.
I had one target that I wasn't building as that app which was part of the project wasn't being actively worked on, but building that was the solution to the problem.
I had to change the xmltree.cs file and now i need to move the dll of the compiled code into another project to update the project. There are a ton of dlls in the presentation bin. I wanted to know if anyone would know which specific ones would need to be moved.
Thanks,
Corey
Assuming that you have created your project from the Umbraco source, you will need to get a clean set of the source (same version) and compile it without your change. Then make your change and recompile. The affected DLLs will have changed their modified dates, and these will be the ones that are dependent on your code change.
You should never base your project directly on the source, especially if you don't know what you're doing. If you need to modify the source, keep it separate (and under source control) and build your project on the compiled version.