Help: Using Code App on iOS for cross-file C++ programming (I'm a beginner in C++ and not doing particularly complex development) #1305

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1. suiyutong61 commented on Jan 19, 2026

   

   suiyutong61

   on Jan 19, 2026

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   Does the Code App on the iOS App Store support cross-file programming? For example, a folder containing myhead.h (function declarations), myfunction.cpp (function definitions), and main.cpp (a main function that calls the functions declared in myhead.h and defined in myfunction.cpp). If there is a way to achieve cross-file programming, please help me out. I don’t know how to properly compile and run files across multiple sources.
   I tried entering commands in the terminal (the command was clang++ main.cpp my.cpp -o myPro), but the terminal kept reporting errors.

   👍React with 👍1Reacted by suiyutong61
2. Jakubpoland commented on Feb 14, 2026

   

   Jakubpoland

   on Feb 14, 2026

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   What I found that could help
   holzschu/a-shell#225 (comment)
3. carinconc commented on Feb 18, 2026

   

   carinconc

   on Feb 18, 2026

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   You can use clang to compile the files manually; however, it is a must-have feature for C++ programmers to run a program with multiple .cpp files directly from the Code app. Hopefully, the developers will add this feature in a future version.
4. Knoficooki commented on Feb 21, 2026

   

   Knoficooki

   on Feb 21, 2026

   Last edited by Knoficooki

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   You can write a simple build script like this:

   mkdir -p build/obj
   clang++ <CLANG-OPTIONS> -c -o build/obj/<file1>.obj src/<file1>.cpp
   # ... do this for every source file
   
   clang++ <CLANG-OPTIONS> -o build/<bin> <files paths for bin in build/obj>

   The first clang calls only compile the sources into linkable object files (don't know if there is a difference using wasm) and the last call builds it into one "executable" (wasm) file

   Example:

   src/
    - main.cpp
    - helper.hpp
    - helper.cpp
   

   could be compiled using:

   mkdir -p build/obj
   # helper.cpp
   clang++ -Wall -Wextra -c -o build/obj/helper.obj src/helper.cpp
   # main.cpp
   clang++ -Wall -Wextra -c -o build/obj/main.obj src/main.cpp
   
   
   clang++ -o build/example build/obj/helper.obj /build/obj/main.obj

   use clang instead of clang++ for C

   but since running sh script (after trying) doesn't currently seem to be supported you can just put this in a python script, which executes each command (this can also simplify the process of adding new files to the build)