C language | Consortium

Consortium

And structure

Each variable of the structure has its own independent space

The consortium shares space

Analysis of definition

union ip
{
    
  int ip;
    char a;
    char b;
    char c;
    char d;
    
};//a,b,c,d Always occupy ip The first byte of , That is, point to the same space 

union ip
{
    
  int ip;
    struct
    {
    
        char a;
    	char b;
    	char c;
    	char d;
    
    };// Meta structure 
};