assign « struct « C Data Type Q&A

1. Why can I not assign interchangeably with two structs that have identical contents?    stackoverflow.com

I'm trying to learn C and I've come across something weird:

struct
{
  int i;
  double j;
} x, y;

struct
{
  int i;
  double j;
} z;

2. Why can I assign structs but not compare them    stackoverflow.com

Even though I am a long time C programmer, I only recently learned that one can directly assign structure variables to one another instead of using memcpy:

struct MyStruct a,b;
...
a = b; ...

3. Assign one struct to another in C    stackoverflow.com

if you have a struct consisting of complex data items. Can you assign one instance to another.

struct Test t1;
struct Test t2;
t2=t1;

4. Assign Struct A to B, where elements of A are subset of B    stackoverflow.com

As I understand assigning arrays is a Memory copy operation, will this work?

struct x{
    int i;
    int j;
} A[5];

struct y{
    int i;
 ...

5. Using mmap to assign space for a struct    bytes.com

Hi all, I am using mmap to obtain some space(mapped anonymously) and am giving the address of the assigned space to a struct pointer. Then I want to access a member of the struct that the pointer points to. The code is: //----begin struct foo{ int test; }foo; struct foo one,*one_ptr; one_ptr=mmap(NULL,sizeof(one),PROT_READ|PROT_WRITE ,MAP_ANON,-1,0); *one_ptr = one; one_ptr->test =0; //---end but I ...

6. Assign struct member value to struct member value    cboard.cprogramming.com

7. can u assign structs to another    cboard.cprogramming.com

8. assign structure a global value    forums.devshed.com

9. Assign struct values    daniweb.com

10. can not assign value to member of struct    daniweb.com

#include #include #include #define HLIMIT 120 #define MLIMIT 50 #define LLIMIT 6 #define DATE_SIZE 18 #define OPTIONS 4 #define NUM_CATS 7 //Media Map //Author: KM // //Project 1 typedef struct mediaItem_ { char doc[DATE_SIZE]; //date of creation int size; char desc[MLIMIT]; int category; char location[HLIMIT]; char creator[MLIMIT]; } mediaItem; mediaItem *items = NULL; int num_items = 0; int ...