Is there any benefit in typedef-ing the same identifier as shown below:
typedef struct Struct_name
{
//something....
} Struct_name;
I have come across this style mostly with struct
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C++ already allows you to refer to struct Struct_name as Struct_name. But it has a special rule that permits this alias to declare the same identifier to Struct_name via typedef.
The reason is C compatibility. In C, struct Struct_name can only be referred to as Struct_name when that typedef is present. So what you see allows one to put this structure in a header that is included by both C and C++ code. Thus letting both code bases refer to the type as both struct Struct_name and Struct_name.
StoryTeller - Unslander Monica
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Is this used only with struct? – Chief A Jan 07 '19 at 09:26
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@ChiefA - It can be used with any declaration that can be understood by both a C and a C++ compiler. So `union` and `enum` too. – StoryTeller - Unslander Monica Jan 07 '19 at 09:27
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thanks for the quick response. SO doesn't allow me to accept an answer within 5 min.!!or maybe 15 min considering the time of posting the question. – Chief A Jan 07 '19 at 09:30
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@ChiefA - NP. I was happy to help – StoryTeller - Unslander Monica Jan 07 '19 at 09:30