foo.cpp: In function 'void refer(long int, long int)':
foo.cpp:20:33: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
foo.cpp:27:17: error: incompatible types in assignment of 'int' to 'long int [502]'
foo.cpp: In function 'int main()':
foo.cpp:39:31: error: 'memset' was not declared in this scope