Iif equivalent in C

Question

Is there an IIf equivalent in C   Or similar shortcut

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Also useful is the coalesce operator      VB   Return Iif  s IsNot Nothing  s   My Default Value      C    return s     My Default Value

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VB NET   If someBool   true    false     C   someBool    true     false

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It s the ternary operator    string newString   i    1    i is one     i is not one

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the ternary operator   bool a   true   string b   a    if true     if false

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It s limited in that you can t put statements in there  You can only put values or things that return evaluate to values    to return  This works   a  is a static int within class Blah   Blah a Blah a lt 5 1 8     round brackets are impicitly between the equals and the question mark    This doesn t work   Blah a   Blah a  lt  4   Console WriteLine  asdf     Console WriteLine  34er    or Blah a   Blah a  lt  4   MessageBox Show  asdf     MessageBox Show  34er      So you can only use the c  ternary operator for returning values   So it s not quite like a shortened form of an if   Javascript and perhaps some other languages let you put statements in there

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booleanExpression   trueValue   falseValue    Example   string itemText   count  gt  1    items     item     http   zamirsblog blogspot com 2011 12 c-vb-equivalent-of-iif html

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C  has the   ternary operator  like other C-style languages  However  this is not perfectly equivalent to IIf    there are two important differences   To explain the first difference  the false-part argument for this IIf   call causes a DivideByZeroException  even though the boolean argument is True    IIf true  1  1 0    IIf   is just a function  and like all functions all the arguments must be evaluated before the call is made  Put another way  IIf   does not short circuit in the traditional sense  On the other hand  this ternary expression does short-circuit  and so is perfectly fine    true  1 1 0    The other difference is IIf   is not type safe  It accepts and returns arguments of type Object  The ternary operator is type safe  It uses type inference to know what types it s dealing with  Note you can fix this very easily with your own generic IIF Of T    implementation  but out of the box that s not the way it is   If you really want IIf   in C   you can have it   object IIf bool expression  object truePart  object falsePart    return expression truePart falsePart     or a generic type-safe implementation   T IIf lt T gt  bool expression  T truePart  T falsePart    return expression truePart falsePart     On the other hand  if you want the ternary operator in VB  Visual Studio 2008 and later provide a new If   operator that works like C  s ternary operator  It uses type inference to know what it s returning  and it really is an operator rather than a function  This means there s no issues from pre-evaluating expressions  even though it has function semantics

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