NSString memory leak [closed]

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//opening DB
if(sqlite3_step(statement) == SQLITE_ROW)
    result = [NSString stringWithUTF8String:(char*)sqlite3_column_text(statement,0)];  //!
else
    result nil;
return result;
//close DB

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This is actually not a memory leak. The NSString will be autoreleased, and the char* returned by sqlite3_column_text will be cleaned up by sqlite during the next step/reset/finalize call.

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the string should be autoreleased by stringWithUTF8String, are you testing for memory leaks on the iPhone or on the simulator? Often the simulator code is just a touch buggier - try it on the device itself