问题
First one - is what NDEBUG somehow already defined by default, so asserts don't work until you #undef it. Second one - they do they work, but i receive no logging in DDMS.
If there is some android specific one assert.h?
Or i just do something wrong?
回答1:
If you want to compile your code with asserts then you can do it in three ways:
- use NDK_DEBUG=1 argument in ndk-build commandline
- add android:debuggable="true" to < application > tag in AndroidManifest.xml
- add APP_OPTIM := debug to your Application.mk file - this will also disable optimizations and will compile with debug symbols
回答2:
Usually program will crash due to SIGSEGV signal after assert() is called, by default NDEBUG is define, you may turn off by add the flag (LOCAL_CFLAGS += -UNDEBUG) during compilation but not work for my case.
I found another solution is using __android_log_assert, simply define as below and replace assert() with assert3:
#define assert3(e...) __android_log_assert(e, "TAG", #e)
来源：https://stackoverflow.com/questions/9140423/android-ndk-assert-h-problems