c - What does "request for member '*******' in something not a structure or union" mean? -


Is there an easy explanation for what this error means? 

  request for member * * ****** Some do not have a structure or association

I have faced many times at that time I am learning, but I have not found it means that what it means.

This also happens when you are trying to use an example when you are an indicator Is, and vice versa: 

  struct foo {int x, y, z; }; Structure Foo A, * B = & amp; a; Bx = 12; / * This will generate error, B-> Must be x or (* b) X * /

As mentioned in a comment, if it goes to someone then it can be extremely intense and typedef sa pointers, i.e. < In a typedef in code> * , such as: 

  typedef struct foo * Foo;

Because then you get the code that looks as it is dealing with examples, when in fact it is dealing with indicators: 

  Foo A_foo = get_a_brand_new_foo (); A_foo-> Field = FANTASTIC_VALUE;

Notice how the above appears as if it should be written as a_foo.field , but it will fail because since Foo An indicator is struct. I strongly recommend against typedef : Ed pointers are important in C, do not hide their stars, they shine.


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