How to cast int to enum in C

Question

How do I cast an int to an enum in C     For example   enum Test       A  B     int a   1    How do I convert a to type Test  A

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Your code  enum Test       A  B    int a   1    Solution  Test castEnum   static cast lt Test gt  a

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Test castEnum   static cast lt Test gt  a-1   will cast a to A  If you don t want to substruct 1  you can redefine the enum  enum Test       A 1  B     In this case Test castEnum   static cast lt Test gt  a   could be used to cast a to A

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Spinning off the closing question   quot how do I convert a to type Test  A quot  rather than being rigid about the requirement to have a cast in there  and answering several years late only because this seems to be a popular question and nobody else has mentioned the alternative  per the C  11 standard   5 2 9 Static cast     an expression e can be explicitly converted to a type T using a static cast of the form static cast lt T gt  e  if the declaration T t e   is well-formed  for some invented temporary variable t  8 5   The effect of such an explicit conversion is the same as performing the declaration and initialization and then using the temporary variable as the result of the conversion   Therefore directly using the form t e  will also work  and you might prefer it for neatness  auto result   Test a

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Test e   static cast lt Test gt  1

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int i   1  Test val   static cast lt Test gt  i

[c++] How to cast int to enum in C++?

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