Eroare de compilare: user.cpp:8: error: expected constructor, destructor, or type conversion before ‘(’ token user.cpp: In function ‘int cmp_frac(const void*, const void*)’: user.cpp:27: error: invalid use of incomplete type ‘const struct frac’ user.cpp:22: error: forward declaration of ‘const struct frac’ user.cpp:27: error: invalid use of incomplete type ‘const struct frac’ user.cpp:22: error: forward declaration of ‘const struct frac’ user.cpp:27: error: invalid use of incomplete type ‘const struct frac’ user.cpp:22: error: forward declaration of ‘const struct frac’ user.cpp:27: error: invalid use of incomplete type ‘const struct frac’ user.cpp:22: error: forward declaration of ‘const struct frac’ user.cpp: In function ‘void find_frac_3(int, int, int)’: user.cpp:84: error: aggregate ‘frac f’ has incomplete type and cannot be defined user.cpp:90: error: invalid application of ‘sizeof’ to incomplete type ‘frac’ user.cpp:90: error: invalid conversion from ‘void*’ to ‘frac*’ user.cpp:94: error: invalid use of incomplete type ‘struct frac’ user.cpp:84: error: forward declaration of ‘struct frac’ user.cpp:96: error: invalid use of incomplete type ‘struct frac’ user.cpp:84: error: forward declaration of ‘struct frac’ user.cpp:98: error: invalid use of incomplete type ‘struct frac’ user.cpp:84: error: forward declaration of ‘struct frac’ user.cpp:98: error: invalid use of incomplete type ‘struct frac’ user.cpp:84: error: forward declaration of ‘struct frac’ user.cpp:100: error: cannot increment a pointer to incomplete type ‘frac’ user.cpp:111: error: invalid use of incomplete type ‘struct frac’ user.cpp:84: error: forward declaration of ‘struct frac’ user.cpp:111: error: invalid application of ‘sizeof’ to incomplete type ‘frac’ user.cpp:113: error: invalid use of incomplete type ‘struct frac’ user.cpp:84: error: forward declaration of ‘struct frac’ user.cpp: In function ‘void farey3(int, int)’: user.cpp:129: error: invalid conversion from ‘void*’ to ‘int*’ user.cpp: In function ‘int main(int, char**)’: user.cpp:155: warning: unused variable ‘max’ user.cpp:155: warning: unused variable ‘alg’ user.cpp:158: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result