Created
October 27, 2012 15:47
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Endiness test
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| int | |
| is_big_endian() | |
| { | |
| int test = 1; | |
| unsigned char *testp = (unsigned char*) &test; | |
| // test if the high bits is on the left | |
| return testp[0] == 0; | |
| } |
memrevifle == mem_reverse_if_little_endian
Many protocol use big endian (network endian), so when we implements a protocol in a little endian environment, we need to swap the high, low bits area.
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from https://github.com/antirez/lua-cmsgpack/blob/master/lua_cmsgpack.c #memrevifle