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25 lines
657 B
C
25 lines
657 B
C
/* encode.h -- encoding and decoding of CoAP data types
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*
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* (c) 2010 Olaf Bergmann <bergmann@tzi.org>
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*/
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#ifndef _COAP_ENCODE_H_
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#define _COAP_ENCODE_H_
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#include "encode.h"
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#define N 8
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#define E 4
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#define HIBIT (1 << (N - 1))
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#define EMASK ((1 << E) - 1)
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#define MMASK ((1 << N) - 1 - EMASK)
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#define MAX_VALUE ( (1 << N) - (1 << E) ) * (1 << ((1 << E) - 1))
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/* internal function, better use macro COAP_PSEUDOFP_ENCODE() instead */
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unsigned int coap_pseudo_encode( unsigned int val );
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#define COAP_PSEUDOFP_ENCODE(r) coap_pseudo_encode( (r) )
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#define COAP_PSEUDOFP_DECODE(r) (r < HIBIT ? r : (r & MMASK) << (r & EMASK))
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#endif /* _COAP_ENCODE_H_ */
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