C4droid (C/C++ compiler & IDE)

C4droid is a user-friendly (but powerful) C/C++ IDE + C/C++ compiler for Android. Note that C4droid supports devices with ARM processors only (not devices with Intel x86 or MIPS processor).

Basic features:

- Offline compiler: create your own applications on Android device and run them even without Internet access

- No root required (but C4droid can use it for your programs if you want)

- Full ANSI C and ISO C99 support with TCC + uClibc

- Source code editor with syntax highlighting, tabs, code completion, code formatting, file association and infinite undo/redo

- Export&share; your programs as APKs or native executables (for terminal apps)

More features with a free GCC plugin:

- Full C++ and almost complete C++11 support with GCC + Bionic libc

- NativeActivity, Qt, SDL and SDL2 support for GUI

- The most recent version of GCC always available

- Makefile support: use the same build scripts as on your PC (BusyBox is included)

- Semi-automatic open-source library porting feature for enhanced programming & education

C4droid is designed to be user-friendy out-of-the-box, but nothing is perfect, so here are some answers for questions that can appear:

How to install C++ support?

C4droid will ask you to install C++ support at first startup and will configure itself in semi-automatic mode.

If you want to do that manually, you need:

0) Enough internal memory OR root rights. C4droid does not require root rights for devices with more than 50MB of free internal memory.

1) Install GCC plugin (C4droid will ask you to install it).

2) Select G++ compiler in C4droid preferences.

3*) Use iostream, not iostream.h

4*) Add "using namespace std;" to your program (before int main)

How to use SDL, SDL2, NativeActivity and Qt in single-file mode?

Just install SDL plugin and select G++ compiler in C4droid preferences.

Note that C4droid chooses app mode using a very simple source code analysis:

SDL is detected with #include "SDL.h", SDL2 is detected with #include "SDL2/SDL.h", NativeActivity is detected with #include "android_native_app_glue.h", Qt is detected with #include "QtGui"

If you are compiling a single-file Qt app, you must add #include "yoursourcefilenamewithcpp.moc" to the end of source code file also.

How to use Makefiles, multifile projects, etc?

Long-click compile button (or select "compilation settings" if buttons are hidden/moved) and configure current directory to use the mode you want.

Note that C4droid will create .c4droid configuration file when you will press Ok. Some modes (like makefile) require to enter result executable file name, don't forget to do that.

After doing that all use compile and run buttons to build and run your app as regular.

How to build and install libraries?

Almost the same way as regular Makefile building except for that most probably some patching may be required.

Currently tested libraries are gmp(internal memory only),mpfr,mpc,libxml2,neon,sqlite,SDL_gfx(--disable-mmx required).

Which gestures/keyboard shortcuts does C4droid support?

Long-click gestures:

Save button: save as.

Open button: recent files.

Run button: run with arguments.

Compile button: configure current directory.

Tab: close tab.

Keyboard shortcuts:

Ctrl-C, Ctrl-V, Ctrl-X for Copy, Paste and Cut

Ctrl-S, Ctrl-O for Save/Open

Ctrl-Z, Ctrl-Y for Undo/Redo.

Ctrl-L for "go to Line"

Ctrl-F for Find

Ctrl-A for select All

Ctrl-B for Build/compile

Ctrl-R for Run

Ctrl-Space/Ctrl-D for autocompletion (Ctrl-Space may be reserved by Android)

If you have found some bugs or you want more help, contact me.

C4droid will check license via the Internet, make sure to have a correct Google Play app (not patched or hacked).

Report bugs atn0n3m4@gmail.com.

Some binaries contained in APK are licensed under (L)GPL, email me to get the source code (Tiny C compiler, GCC, BusyBox, etc.)

Android is a trademark of Google Inc.

Qt is a registered trademark of Digia.