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MapGetSS ( Map M, String I ) -> String
MapGetSI ( Map M, String I ) -> int
These functions use I to locate the index-value pair < I,V > in map M
and return V.
If the pair < I,V > does not exist then MapGetSS and MapGetISquietly
adds < I,"" > to M and returns the null string,
and MapGetSI and MapGetIIquietly adds < I,0 > to M and returns 0.
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If the type of V is String and an int is expected then the value
atoi(V) is returned. The entry was previously created by MapSetSS,
perhaps. There are other ways of converting a string to an integer,
but assume a valid 32-bit integer will result.
If the type of V is int and a string is expected then V is converted to
a string
----------------your choice design decision--------------------
which then replaces the old value of V (which must be
properly disposed of), and V is returned.
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