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ParagraphMetrics::computeRowSignature(): Fix crc computing; char_type is 4 bytes!

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@21666 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Abdelrazak Younes 2007-11-18 21:47:46 +00:00
parent 1b147f12b0
commit b3ae9f9b71
1 changed files with 5 additions and 2 deletions
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7
src/ParagraphMetrics.cpp
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@ -103,17 +103,20 @@ size_t ParagraphMetrics::computeRowSignature(Row const & row,
boost::crc_32_type crc; boost::crc_32_type crc;
for (pos_type i = row.pos(); i < row.endpos(); ++i) { for (pos_type i = row.pos(); i < row.endpos(); ++i) {
char_type const b[] = { par_->getChar(i) }; char_type const b[] = { par_->getChar(i) };
crc.process_bytes(b, 1); // char_type is 4 bytes!
crc.process_bytes(b, 4);
if (bparams.trackChanges) { if (bparams.trackChanges) {
Change change = par_->lookupChange(i); Change change = par_->lookupChange(i);
char_type const b[] = { change.type }; char_type const b[] = { change.type };
// 1 byte is enough to encode Change::Type
crc.process_bytes(b, 1); crc.process_bytes(b, 1);
} }
} }
Dimension const & d = row.dimension(); Dimension const & d = row.dimension();
char_type const b[] = { row.sel_beg, row.sel_end, d.wid, d.asc, d.des}; char_type const b[] = { row.sel_beg, row.sel_end, d.wid, d.asc, d.des};
crc.process_bytes(b, 5); // Each of the variable to process is 4 bytes: 4x5 = 20
crc.process_bytes(b, 20);
return crc.checksum(); return crc.checksum();
} }