mingw64: NULL used in arithmetic
mingw64: NULL used in arithmetic

Change-Id: I87bf28e1d6db2afe5ffa095cbf9181602ec9fc3f

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core