and the := is that just a regular = ? And I don't quite understand behind all this semantic rules...
why is it using Expr1.type = float V Expr2.float
why not Expr.float V Expr2.float
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semantic rules
I am quite confused by the following semantic rules, what does it mean? I am confused mainly by the ? and the v symbols
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semantic
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by: Infinity08Posted on 2008-12-19 at 02:23:04ID: 23211234
The ? is part of the ternary conditional operator ?: in C. It is used like this :
(cond) ? if_true : if_false
and resolves to if_true if cond is true, and to if_false if cond is false.
The V and upside down V symbols are logic operators, and they stand for the logical OR (V) and AND (upside down V) respectively.