Use c / c ++ programming information for a long time warm compiler print, Sidongfeidong, slowly neglected, not just learning so seriously because I saw a lot, did not go wrong, there are times beautiful woman a very strange bug, discovered that in fact the compiler warm message had warned of.
to sum up
Compiler warning is not no problem, but the problem may be the point, can not be ignored, in different platforms, there are problems that may arise and even on some hardware, unless you ignore completely understand its specific meaning.
