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simplify bitwise operations to single statements

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Stephen Birarda 2013-02-18 16:32:39 -08:00
parent 8322c29093
commit e6a0f5cd6c
1 changed files with 2 additions and 11 deletions
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13
space/src/main.cpp
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@ -36,21 +36,12 @@ TreeNode *findOrCreateNode(int lengthInBits,
TreeNode *currentNode = &rootNode; TreeNode *currentNode = &rootNode;
for (int i = 0; i < lengthInBits; i += 3) { for (int i = 0; i < lengthInBits; i += 3) {
unsigned char octetA;
unsigned char octetB;
unsigned char octet; unsigned char octet;
/*
* @TODO Put those shifts into a nice single statement, leaving as is for now
*/
if (i%8 < 6) { if (i%8 < 6) {
octetA = addressBytes[i/8] << i%8; octet = addressBytes[i/8] << i%8 >> (5);
octet = octetA >> (5);
} else { } else {
octetA = addressBytes[i/8] << i; octet = (addressBytes[i/8] << i >> (11 - i)) | (addressBytes[i/8 + 1] >> (11 - i + 2));
octetA = octetA >> (11 - i);
octetB = addressBytes[i/8 + 1] >> (11 - i + 2);
octet = octetA | octetB;
} }
if (currentNode->child[octet] == NULL) { if (currentNode->child[octet] == NULL) {