fix potential overflow by casting one operand to lager integer type #555
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What problem were solved in this pull request?
Issue Number: close #xxx
#534
Problem:
Fix code scanning alert - Multiplication result converted to larger type #534
What is changed and how it works?
Basically just casted one of the operand to 'long'. I wasn't sure if it was meant to be an unsigned type for example size_t and that's why I stuck to long.
Other information