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Fix editDistance() not to access the outside of mEditDistanceTable

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editDistance() can access the outside of mEditDistanceTable when called
with strings that contain MAX_WORD_LENGTH_INTERNAL characters.

Change-Id: I996e6cf21bd6acd6584beb4046c10491a044191e
This commit is contained in:
Yusuke Nojima 2011-09-16 11:28:54 +09:00
parent 5b0c124ca8
commit 2e496f5d0b
1 changed files with 2 additions and 1 deletions
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3
native/src/correction.h
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@ -119,8 +119,9 @@ private:
int mTerminalInputIndex;
int mTerminalOutputIndex;
unsigned short mWord[MAX_WORD_LENGTH_INTERNAL];
// Edit distance calculation requires a buffer with (N+1)^2 length for the input length N.
// Caveat: Do not create multiple tables per thread as this table eats up RAM a lot.
int mEditDistanceTable[MAX_WORD_LENGTH_INTERNAL * MAX_WORD_LENGTH_INTERNAL];
int mEditDistanceTable[(MAX_WORD_LENGTH_INTERNAL + 1) * (MAX_WORD_LENGTH_INTERNAL + 1)];
CorrectionState mCorrectionStates[MAX_WORD_LENGTH_INTERNAL];