Eroare de compilare: user.cpp:5: error: 'char exp2 [256]' redeclared as different kind of symbol /usr/include/bits/mathcalls.h:142: error: previous declaration of 'double exp2(double)' user.cpp: In function 'float GetVal()': user.cpp:35: error: cannot convert 'double (*)(double)throw ()' to 'const char*' for argument '1' to 'size_t strlen(const char*)' user.cpp:38: error: pointer to a function used in arithmetic user.cpp:38: error: ISO C++ forbids comparison between pointer and integer user.cpp:60: error: pointer to a function used in arithmetic user.cpp:60: error: ISO C++ forbids comparison between pointer and integer user.cpp:82: error: pointer to a function used in arithmetic user.cpp:82: error: ISO C++ forbids comparison between pointer and integer user.cpp:85: warning: statement has no effect user.cpp:87: error: pointer to a function used in arithmetic user.cpp:87: error: ISO C++ forbids comparison between pointer and integer user.cpp:110: error: pointer to a function used in arithmetic user.cpp:110: error: invalid conversion from 'double (*)(double)throw ()' to 'char' user.cpp:110: error: initializing argument 1 of 'int cf(char)' user.cpp: In function 'int main()': user.cpp:160: warning: format '%s' expects type 'char*', but argument 3 has type 'double (*)(double)throw ()'