id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
5128	Implicit constant overflow in non_blocking_io::name()	hannesf@…	chris_kohlhoff	"non_blocking_io::name() returns FIONBIO as an int, without explicit cast.

On Mac OS X (10.6.6), the FIONBIO macro evaluates to
((__uint32_t)0x80000000 | ((sizeof(int) & 0x1fff) << 16) | ((('f')) << 8) | ((126)))

While this is a perfectly valid 32-bit number (0x8004667e), the implicit cast to int generates an
'Overflow in implicit constant conversion' warning, which makes the build fail if '-Werror' is specified.

A simple solution would be to modify non_blocking_io::name() to 

return (int)FIONBIO;"	Bugs	closed	To Be Determined	asio	Boost 1.45.0	Problem	fixed