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Hi all,

What is the difference between char *a and char * a?
Where char * a can be used?

Thank you in advance.

what is the difference between if and #if. when to use what?

thanks in advance

I am having two structures with same elements. shall i give like this..



struct emp
{
int accno;
char name[10];
};

ya, you are right. But, i need help for the second statement in assigning values for structure elements. what's that "or(|)" symbol comes here.

if i am having a following structure



struct emp
{
int acc;
char name;
};
struct emp e;

I think u didn't understand my problem clearly. What i want is i am having a variable of name 'X', if i declare X as an int type. it will be of size 4 bytes. I dont know the type of the variable, it...

How to declare a variable length data type. It may be of any type (char, int, float).

for eg:
In linux,
int has 4 bytes
...

then how could i give values

i dont want to give null value. i need to give some values.

for eg:-


struct name
{
char nam[10];
};

tell me any one possibility to give a values for structure pointer.

I want to know what will be the output for the following statement. whether it is correct or not. If it is wrong what would be the correct code.



struct name *h={10,"aa"};

How to send a function in "sendto()" function in socket programming. I am having a function definition in .h file, i am including that file in socket programming. How to send that function from...

I want to get the values for the structure in one function and pass this values to the main and print those values in main. can i do this. my example code as follows. Is it correct or any changes i...

thanks matsp

i want to allocate 1MB of memory and partition those memory into pages, each of 4KB. Then i want to store the value returned by add function to one of the page allocated. I want the initial address...

i want to allocate pages of some KB which starts from address what i am giving.. one function, for eg: add function will be assigning to these pages. so the return value should be stored in that...

I am having some partitioned pages using malloc function. The malloc function will return a address to the variable. I have to assign a address value to this partitioned pages. I will assign a...

Does anybody know how to write a C program for APDU(Application Protocol Data Unit) packets or generally how data packets are written in C programming.. any reference material is there...

Please...

I want to get the 'n' value from other variable and i want to allocate those number of bytes. if i give n=3, it has to allocate 3 bytes, if n=4, it has to allocate 4 bytes. I think, now you will be...

I want to allocate 'n' bytes of memory. How can i do that. I have to get this n value from another variable. If i give n=3, it has to allocate 3 bytes of memory. How can i do this. I tried with the...

How to check it manually?

How to check the memory allocated using malloc function.



int *mem;
mem=(int *)malloc(sizeof(int));


How to check the memory allocated to mem.

Anyone help me to validate memory allocation using malloc function for the following code



int i,j,*page[16],u=0,p;
int *array1[4]; ...

Just for example I am doing this prog

I am getting the address value return from malloc. so from two addresses, I conclude that it is allocating 520 B of memory.
For eg:-
If the address value wheni=0 is 12435600, then the...