NAME<\/a> bswap_16, bswap_32, bswap_64 \u2212 reverse order of bytes<\/p>\n #include bswap_16(<\/b>x<\/i>); These macros return a value in which the order of the bytes in their 2-, 4-, or 8-byte arguments is reversed.<\/p>\n These macros return the value of their argument with the bytes reversed.<\/p>\n These macros always succeed.<\/p>\n These macros are GNU extensions.<\/p>\n The program below swaps the bytes of the 8-byte integer supplied as its command-line argument. The following shell session demonstrates the use of the program:<\/p>\n $ .\/a.out 0x0123456789abcdef<\/b> Program source<\/b> int if (argc != 2) { x = strtoull(argv[1], NULL, 0); exit(EXIT_SUCCESS);
SYNOPSIS<\/a>
DESCRIPTION<\/a>
RETURN VALUE<\/a>
ERRORS<\/a>
CONFORMING TO<\/a>
EXAMPLES<\/a>
SEE ALSO<\/a>
COLOPHON<\/a> <\/p>\n
\nNAME <\/a> <\/h2>\n
SYNOPSIS <\/a> <\/h2>\n
bswap_32(<\/b>x<\/i>);
bswap_64(<\/b>x<\/i>);<\/b><\/p>\nDESCRIPTION <\/a> <\/h2>\n
RETURN VALUE <\/a> <\/h2>\n
ERRORS <\/a> <\/h2>\n
CONFORMING TO <\/a> <\/h2>\n
EXAMPLES <\/a> <\/h2>\n
0x123456789abcdef ==> 0xefcdab8967452301<\/p>\n
#include
#include
#include
#include
#include
main(int argc, char *argv[])
{
uint64_t x;<\/p>\n
fprintf(stderr, “Usage: %s
exit(EXIT_FAILURE);
}<\/p>\n
printf(“%#” PRIx64 ” ==> %#” PRIx64 “n”, x, bswap_64(x));<\/p>\n
}<\/p>\nSEE ALSO <\/a> <\/h2>\n