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Adding int2str
C.1.7 Integer to charstring
int2str(in integer invalue) return charstring
This function converts the integer value into its string equivalent (the base of the return string is always decimal).
The general error causes in clause 16.1.2 apply.
EXAMPLE:
int2str(66) // will return the charstring value "66"
int2str(-66) // will return the charstring value "-66"
int2str(0) // will return the charstring value "0"