kreg.cpp: In function `int main()': kreg.cpp:38: call of overloaded `ceil(int)' is ambiguous /usr/include/bits/mathinline.h:504: candidates are: double ceil(double) /usr/include/c++/3.2.2/cmath:183: long double std::ceil(long double) /usr/include/c++/3.2.2/cmath:175: float std::ceil(float) kreg.cpp:38: call of overloaded `floor(int)' is ambiguous /usr/include/bits/mathinline.h:493: candidates are: double floor(double) /usr/include/c++/3.2.2/cmath:257: long double std::floor(long double) /usr/include/c++/3.2.2/cmath:249: float std::floor(float)