foo.cpp: In function 'int main()':
foo.cpp:15:27: error: 'memset' was not declared in this scope
foo.cpp:28:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
foo.cpp:37:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
foo.cpp:38:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
foo.cpp:38:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]