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minor cleanup of 16-bit compressable macro and comment

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This commit is contained in:
Joakim Eriksson 2011-03-07 14:50:29 +01:00
parent 972c1992d2
commit 4599284110
1 changed files with 4 additions and 5 deletions
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9
core/net/sicslowpan.h
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@ -233,14 +233,13 @@ struct sicslowpan_addr_context {
* \brief check whether we can compress the IID in * \brief check whether we can compress the IID in
* address 'a' to 16 bits. * address 'a' to 16 bits.
* This is used for unicast addresses only, and is true * This is used for unicast addresses only, and is true
* the address is on the format ::0000:00ff:fe00:XXXX * if the address is on the format <PREFIX>::0000:00ff:fe00:XXXX
* NOTE: we currently assume 64-bits prefixes
*/ */
#define sicslowpan_is_iid_16_bit_compressable(a) \ #define sicslowpan_is_iid_16_bit_compressable(a) \
((((a)->u16[4]) == 0) && \ ((((a)->u16[4]) == 0) && \
(((a)->u8[10]) == 0) && \ (((a)->u16[5]) == 0x00ff) && \
(((a)->u8[11]) == 0xff) && \ (((a)->u16[6]) == 0xfe00))
(((a)->u8[12]) == 0xfe) && \
(((a)->u8[13]) == 0))
/** /**
* \brief check whether the 9-bit group-id of the * \brief check whether the 9-bit group-id of the