Wednesday, November 2, 2011

How Structure Elements are Stored in C programming language

Whatever be the elements of a structure, they are always stored in contiguous memory locations. The following program would illustrate this:

/* Memory map of structure elements */
main( )
{
struct book
{
char name ;
float price ;
int pages ;
} ;
struct book b1 = { 'B', 130.00, 550 } ;
printf ( "\nAddress of name = %u", &b1.name ) ;
printf ( "\nAddress of price = %u", &b1.price ) ;
printf ( "\nAddress of pages = %u", &b1.pages ) ;
}

Here is the output of the program...
Address of name = 65518
Address of price = 65519
Address of pages = 65523
Actually the structure elements are stored in memory as shown in the Figure



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