whereami
jarro2783/cxxopts
whereami | jarro2783/cxxopts | |
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10 | 15 | |
445 | 4,002 | |
- | - | |
2.9 | 6.8 | |
4 months ago | 9 days ago | |
C | C++ | |
MIT License | MIT License |
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whereami
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I am having trouble with a relative file path. My debugger shows the proper path but the program can't open the file. Can someone help?
If the file is part of a software suite to be distributed, e.g. a texture file, a database or similar then you can specify the path relative to the final location of the executable in the installed directory structure. To get the path of the executable you need to use OS specific functions or a cross platform library like whereami.
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Playing a sound using a string as a path
Also paths are typically relative to the Current Working Directory, which is not necessarily the same directory as where the .exe file is. If you want to give a path relative to the .exe file you first need to find the absolute path of the .exe file. There is no way to get this in standard C++, but you can use the Windows API to find it or use a cross-platform library like whereami.
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Visual Studio - Relative Path of solutionDir
Someone made a cross-platform library to get the path to the executable: https://github.com/gpakosz/whereami
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How to force makefile to run from the bin directory rather than its root directory
C++ only knows about the Current Working Directory and all file paths will be relative to that and not relative to the executable file (by the time your main() function is called the entire program has been loaded into memory). You need to use the OS API to get the location of the executable file. Luckily there are easy to use cross platform libraries for this such as whereami. Then you can specify the assets path relative to the executable file and it will work no matter where the program is run from as long as the directory structure is as you specify.
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Is there a macro for the output directory on msvc?
Find the path of the executable and save the file relative to this. This is beyond standard C++ and you have to use the API of the Operating System. There is luckily some people that made cross platform libraries for this, such as whereami.
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How to change the working directory of my executable with compiling with g++ so that file input output works?
Set up CLion so that it copies the input files to a folder relative to the executable file. However relative file paths in C++ are always relative to the current working directory, which is not necessarily the same directory as where the executable is. You have to use OS specific functions to get the path of the executable or use a wrapper library like whereami.
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Absolute path works but relative doesn't
If you need the path relative to the .exe you first need to find the absolute path of the .exe, for which standard C++ has no way - you need to use OS specific features (Win API) or a wrapper library, e.g. whereami
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Getting path to the resource file in Cpp executable made with CMake
You need to get the path to the executable. Unfortunately there is no standard way in the C++ language to do this, so you will have to use the OS API or a library such as https://github.com/gpakosz/whereami or one of the many similar ones.
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CMake - passing path of project root directory to executable or C++ file
it will look for that path relative to the current working directory, which depends on how you run your executable. You will likely install the resource files in a directory relative to where the executable file is installed. There is however, no standard C++ way of getting the path of the executable, so you have to use a library such as whereami.
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`whereami` uses WiFi signals & ML to locate you (within 2-10 meters)
For a moment I was really confused, because https://github.com/gpakosz/whereami
jarro2783/cxxopts
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Command line interface library
The most feature-rich C++ CLI library is CLI11. Other popular choices include Boost.ProgramOptions, argparse, cxxopts and others.
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Recommended Argument Parsing Library?
I've used cxxopts and can't complain. It's available on both Conan and vcpkg.
- Confusion about libraries and project structure
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Quick question about int main(int argc, char **argv)
For streamlined command line option parsing check out a library like cxxopts or similar. There are plenty out there.
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How do you make a command line argument of this format: ./executableName "input = inputFileName; output = outputFileName"
Have a look at cxxopts which is similar to the python getopt functions, It's header only so easy to use (just dump the header in your project). There is also boost::program_options but this requires boost which is big.
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CLI11 is making all the other options libraries look bad, does anyone have a comparison from experience?
I use CLI11 for more complex things, https://github.com/jarro2783/cxxopts for simpler interfaces, and boost.program_options if I have to and have boost anyways as dependency.
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Is there a macro for the output directory on msvc?
Let the user pass the path/filename as an input argument to the program. Your main() function takes arguments from the console, so you could invoke your program as .\my_program --err_log "\path\to\my_errors.log". Of course this again only works if executed from the console - you can however create a desktop shortcut that invokes your program with this argument and you can also configure your IDE to pass this argument when running your program. To make parsing input arguments easier, use a library such as cxxopts
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Command Line Argument That Can Take Multiple Parameters
You probably want the header only library cxxopts.
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How to create my own command using cpp?
To make parsing command line options easier I can recommend the cxxopts library.
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Dumb question: what data structure do you use to represent a collection of config values passed in via command line arguments/
I have previously used this: https://github.com/jarro2783/cxxopts
What are some alternatives?
whereami - Uses WiFi signals :signal_strength: and machine learning to predict where you are
CLI11 - CLI11 is a command line parser for C++11 and beyond that provides a rich feature set with a simple and intuitive interface.
gb - gb single-file public domain libraries for C & C++
Boost.Program_options - Boost.org program_options module
data_desk - New version "Metadesk" at https://github.com/Dion-Systems/metadesk
gflags - The gflags package contains a C++ library that implements commandline flags processing. It includes built-in support for standard types such as string and the ability to define flags in the source file in which they are used. Online documentation available at:
bdwgc - The Boehm-Demers-Weiser conservative C/C++ Garbage Collector (bdwgc, also known as bdw-gc, boehm-gc, libgc)
clipp - easy to use, powerful & expressive command line argument parsing for modern C++ / single header / usage & doc generation
Framework-ArkServerApi - ArkServerAPI is open source software you can install directly into windows versions of Ark Survival Evolved this software allows you to manage and create plugins to enhance your video game servers. ArkServerAPI is currently run and supported by GameServersHub.
args - A simple header-only C++ argument parser library. Supposed to be flexible and powerful, and attempts to be compatible with the functionality of the Python standard argparse library (though not necessarily the API).
reproc - A cross-platform (C99/C++11) process library
conan - Conan - The open-source C and C++ package manager