When I add #define to either main.cpp or one of my headers called from main.cpp, it does not seem to be defined in other files.
For example, in main.cpp I might do something like:
#define TEST_FOO 1
Then in one of my other files, for example secondfile.cpp, TEST_FOO is ignored as if it was never defined:
#if TEST_FOO // do something <- this never gets reached #endif
Even if in the Android.mk file I place secondfile.cpp after main.cpp:
LOCAL_SRC_FILES : main.cpp \ secondfile.cpp
Is there a way to #define values in Android NDK inside the actual code?
That is correct. The compiler only knows about one source file at a time. When you compile
secondfile.cpp, it has completely forgotten about anything you may have defined in
If you want a
#define to be visible in all your source files, you need to put it in a header which is included by all your files. Or, pass it on the command line; you can do this by adding something like this to your
LOCAL_CPPFLAGS : -DTEST_FOO1
Answered By – Graham Borland