0_0_37092896_9753.cpp: In function 'int main()': 0_0_37092896_9753.cpp:2:11: error: expected primary-expression before '=' token #define PI=3.1415927 ^ 0_0_37092896_9753.cpp:8:11: note: in expansion of macro 'PI' v=4*PI*r*r*r/3 ^