musl/src/network/htons.c
Rich Felker c89862660b optimize ntohl etc. in terms of bswap functions
we can do this without violating the namespace now that they are
macros/inline functions rather than extern functions. the motivation
is that gcc was generating giant, slow, horrible code for the old
functions, and now generates a single byte-swapping instruction.
2011-04-12 13:13:27 -04:00

8 lines
146 B
C

#include <netinet/in.h>
#include <byteswap.h>
uint16_t htons(uint16_t n)
{
union { int i; char c; } u = { 1 };
return u.c ? bswap_16(n) : n;
}