Compilare: user.cpp: In function ‘void cit_uint(int&)’: user.cpp:39: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp:42: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp: In function ‘void cit_int(int&)’: user.cpp:51: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp:56: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp:61: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp: In function ‘void mult(double (*)[2], double (*)[2])’: user.cpp:78: warning: missing braces around initializer for ‘double [2]’ user.cpp: In function ‘int main()’: user.cpp:93: warning: missing braces around initializer for ‘double [2]’ user.cpp:93: warning: missing braces around initializer for ‘double [2]’ user.cpp:88: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result