/in/foo.cc:35:21: error: ISO C++ forbids declaration of 'writlen' with no type [-fpermissive]
 inline writlen(int x)
                     ^
/in/foo.cc: In function 'int writlen(int)':
/in/foo.cc:39:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^