/in/foo.cc: In function 'bool search_insert(int, short int, node2*)':
/in/foo.cc:121:1: warning: control reaches end of non-void function [-Wreturn-type]
 }  
 ^
/in/foo.cc: In function 'int search(int, node2*)':
/in/foo.cc:139:1: warning: control reaches end of non-void function [-Wreturn-type]
 } 
 ^