Termux can't run c++ programs?

Question

So I compiled a simple cpp program using clang++ with termux on android, but I can't run the program, I get the following error:

 $ ./execname
-bash: . /execname: Permission denied 

Answer 1

Are you running on shared storage (under /sdcard)? The file system there does not support executable permissions.

Try compiling and running the file directly in the $HOME dir!