tunel.cpp: In function `int found(char*)': tunel.cpp:26: warning: comparison between signed and unsigned integer expressions tunel.cpp:26: warning: comparison between signed and unsigned integer expressions tunel.cpp:28: warning: comparison between signed and unsigned integer expressions tunel.cpp:30: warning: control reaches end of non-void function /tmp/ccyzJ3p1.o(.text+0x1d3): In function `main': : the `gets' function is dangerous and should not be used.