bitslang.cpp: In function `int main()': bitslang.cpp:9: warning: long int format, int arg (arg 2) bitslang.cpp:20: warning: comparison between signed and unsigned integer expressions bitslang.cpp:38: warning: comparison between signed and unsigned integer expressions bitslang.cpp:66: warning: long int format, int arg (arg 2) /tmp/cc2y3TQD.o(.text+0x72): In function `main': : the `gets' function is dangerous and should not be used.