# Verilog Conditional Assignment

For example, the four bits of A are An expression using conditional operator evaluates the logical expression before the "? If the expression is true then the expression before the colon (:) is evaluated and assigned to the output.If the logical expression is false then the expression after the colon is evaluated and assigned to the output.

For example, the four bits of A are An expression using conditional operator evaluates the logical expression before the "? If the expression is true then the expression before the colon (:) is evaluated and assigned to the output.If the logical expression is false then the expression after the colon is evaluated and assigned to the output.

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If the language provides a mechanism of futures or promises, then short-circuit evaluation can sometimes also be simulated in the context of a binary map operation.Furthermore, if no order is guaranteed, a distinction exists about whether the result is then classified as indeterminate (the value obtained from some order) or undefined (any value at all at the whim of the compiler in the face of side effects, or even a crash).If the language does not permit side-effects in expressions (common in functional languages), then the order of evaluation has no value semantics—though it may yet bear on whether an infinite recursion terminates, or have other performance implications (in a functional language with match expressions, short-circuit evaluation is inherent, and natural uses for the ternary operator arise less often, so this point is of limited concern).is a ternary operator that is part of the syntax for basic conditional expressions in several programming languages.It is commonly referred to as the conditional operator, inline if (iif), or ternary if.The conditional operator's most common usage is to make a terse simple conditional assignment statement.For example, if we wish to implement some C code to change a shop's normal opening hours from 9 o'clock to 12 o'clock on Sundays, we may use The two forms are nearly equivalent. : is an expression and if-then-else is a statement.Nested ternaries can be simulated as returns the index of the first true value in the condition vector.Note that both of these map equivalents are binary operators, revealing that the ternary operator is ternary in syntax, rather than semantics.In R—and other languages with literal expression tuples—one can simulate the ternary operator with something like the R expression (this idiom is slightly more natural in languages with 0-origin subscripts).However, in this idiom it is almost certain that the entire tuple expression will evaluate prior to the subscript expression, so there will be no short-circuit semantics.