Eroare de compilare: user.cpp: In function ‘double horizontal(int, int, int, int, int, int)’: user.cpp:85:34: error: call of overloaded ‘abs(double)’ is ambiguous dist = abs(fx - x); ^ user.cpp:85:34: note: candidates are: In file included from /usr/include/c++/4.8/cstdlib:72:0, from /usr/include/c++/4.8/bits/stl_algo.h:59, from /usr/include/c++/4.8/algorithm:62, from user.cpp:3: /usr/include/stdlib.h:771:12: note: int abs(int) extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur; ^ user.cpp:34:8: note: double abs(double) double abs(double a) ^ In file included from /usr/include/c++/4.8/random:38:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from user.cpp:3: /usr/include/c++/4.8/cmath:91:3: note: constexpr long double std::abs(long double) abs(long double __x) ^ /usr/include/c++/4.8/cmath:87:3: note: constexpr float std::abs(float) abs(float __x) ^ /usr/include/c++/4.8/cmath:81:3: note: constexpr double std::abs(double) abs(double __x) ^ In file included from /usr/include/c++/4.8/bits/stl_algo.h:59:0, from /usr/include/c++/4.8/algorithm:62, from user.cpp:3: /usr/include/c++/4.8/cstdlib:174:3: note: long long int std::abs(long long int) abs(long long __x) { return __builtin_llabs (__x); } ^ /usr/include/c++/4.8/cstdlib:166:3: note: long int std::abs(long int) abs(long __i) { return __builtin_labs(__i); } ^ user.cpp: In function ‘double vertical(int, int, int, int, int, int)’: user.cpp:109:34: error: call of overloaded ‘abs(double)’ is ambiguous dist = abs(y - fy); ^ user.cpp:109:34: note: candidates are: In file included from /usr/include/c++/4.8/cstdlib:72:0, from /usr/include/c++/4.8/bits/stl_algo.h:59, from /usr/include/c++/4.8/algorithm:62, from user.cpp:3: /usr/include/stdlib.h:771:12: note: int abs(int) extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur; ^ user.cpp:34:8: note: double abs(double)