sumprod.cpp:7: `int div[6][2]' redeclared as different kind of symbol /usr/include/stdlib.h:757: previous declaration of `div_t div(int, int)' sumprod.cpp:7: parse error before `,' token sumprod.cpp: In function `void bt(int)': sumprod.cpp:11: `p' undeclared (first use this function) sumprod.cpp:11: (Each undeclared identifier is reported only once for each function it appears in.) sumprod.cpp:13: `s' undeclared (first use this function) sumprod.cpp:15: `ok' undeclared (first use this function) sumprod.cpp:19: ISO C++ forbids an empty condition for `if' sumprod.cpp:20: parse error before `}' token sumprod.cpp: In function `int main()': sumprod.cpp:36: use of `div' is ambiguous sumprod.cpp:7: first declared as `int div[6][2]' here /usr/include/c++/3.2.2/cstdlib:149: also declared as `__gnu_cxx::div' here