bitslang.cpp: In function `int main()': bitslang.cpp:19: warning: comparison between signed and unsigned integer expressions bitslang.cpp:37: warning: comparison between signed and unsigned integer expressions bitslang.cpp:41: warning: comparison between signed and unsigned integer expressions bitslang.cpp:48: warning: comparison between signed and unsigned integer expressions /tmp/ccQce194.o(.text+0x8d): In function `main': : the `gets' function is dangerous and should not be used.