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make it possible to accumulate CRC values through crc16_data.

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This commit is contained in:
nvt-se 2009-05-14 12:05:04 +00:00
parent 2978270e43
commit b0a8154e96
1 changed files with 3 additions and 4 deletions
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7
core/lib/crc16.c
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@ -28,7 +28,7 @@
* *
* This file is part of the Contiki operating system. * This file is part of the Contiki operating system.
* *
* @(#)$Id: crc16.c,v 1.3 2008/08/26 21:46:06 adamdunkels Exp $ * @(#)$Id: crc16.c,v 1.4 2009/05/14 12:05:04 nvt-se Exp $
*/ */
/** \addtogroup crc16 /** \addtogroup crc16
@ -67,13 +67,12 @@ unsigned short
crc16_data(const unsigned char *data, int len, unsigned short acc) crc16_data(const unsigned char *data, int len, unsigned short acc)
{ {
int i; int i;
unsigned short crc = 0;
for(i = 0; i < len; ++i) { for(i = 0; i < len; ++i) {
crc = crc16_add(*data, crc); acc = crc16_add(*data, acc);
++data; ++data;
} }
return crc; return acc;
} }
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/