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Added lookup cache to the lookup function

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This commit is contained in:
Jordan Sherer 2018-10-15 03:03:26 -04:00
parent 9496d5ed81
commit c42c3b7ad1
1 changed files with 16 additions and 1 deletions
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17
jsc.cpp
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@ -24,6 +24,9 @@
#include <cmath>
#include <QDebug>
#include <QCache>
QMap<QString, quint32> LOOKUP_CACHE;
Codeword JSC::codeword(quint32 index, bool separate, quint32 bytesize, quint32 s, quint32 c){
QList<Codeword> out;
@ -145,7 +148,19 @@ QString JSC::decompress(Codeword const& bitvec){
}
quint32 JSC::lookup(QString w, bool * ok){
return lookup(w.toLatin1().data(), ok);
if(LOOKUP_CACHE.contains(w)){
if(ok) *ok = true;
return LOOKUP_CACHE[w];
}
bool found = false;
quint32 result = lookup(w.toLatin1().data(), &found);
if(found){
LOOKUP_CACHE[w] = result;
}
if(ok) *ok = found;
return result;
}
quint32 JSC::lookup(char const* b, bool *ok){