Compilare: main.cpp:2:0: warning: ignoring #pragma warning [-Wunknown-pragmas] #pragma warning(disable : 4996) main.cpp: In function 'BigNumber operator+(BigNumber, BigNumber)': main.cpp:48:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < n1.m_number.length() || i < n2.m_number.length() || t; i++) ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:48:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < n1.m_number.length() || i < n2.m_number.length() || t; i++) ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:50:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] c1 = (i < n1.m_number.length()) ? n1.m_number[i] : '0'; ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:51:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] c2 = (i < n2.m_number.length()) ? n2.m_number[i] : '0'; ~~^~~~~~~~~~~~~~~~~~~~~~