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Questions tagged [operators]

Regarding programming languages, operators are constructs which behave generally like functions, but which differ syntactically or semantically from usual functions. From Wikipedia: http://en.wikipedia.org/wiki/Operator_%28programming%29

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What programming language first used the 'Safe navigation operator' (?.)?

What programming language first used / invented the 'Safe navigation operator' (?.) ? Unfortunately, the Wikipedia page on this subject does not have information on it and googling yielded no readily ...
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