dumbfounded _guy

i am reading a book for my IT security seminar and i need to summarize a chapter where it says:

"The introduction of postage stamps in 1840 was an advance for privacy

as it made it much easier to send a letter anonymously. Some countries got so

worried about the threat of sedition an

d libel that they passed laws requiring

a return address to be written on the back of the envelope."

but i cant find any information on this in other sources ,nor can i understand why did the stamp help anonymity.

what i can find is that it forced payment non the sender , but this doesn't hep anonymity.

does anyone has a source and explanation?

i am trying to find the name of a tv show from around the 90's .

the show was about a group of people that ran a company which helped other people(good people) get revenge\justice on people that hurt them (if i remember correctly,the company didn't play by the book,and did some shady actions in order to get justice)

the only other thing i think i remember about the show was that one of the mangers of the company was a kind of a mobster type(i think he always wore a black suit and i think smoked a cigar, and no i am not talking about tony soprano)

i thought the show was called something like revenge inc or justice inc, but i haven't found any show with that name that fits with what i remember.

i need to write a program in c that creates a variable long int **arr , and then allocates to each cell a partition sized m like this:

arr = malloc(n*sizeof(long int *));

for(i=0; i < n;i=i+2 )

arr[i] = malloc( m*sizeof(long int));

and then create an asm program in model large that implement the function:

extern void set_bufferred_long(long int *arr[], int buff_size, int i,long int value); -which sets cells of the array

this is my implantation of the function in asm:

.MODEL LARGE

.CODE

PUBLIC _set_bufferred_long ;set_bufferred_long(long int *arr[], int buff_size, int i,long int value)

; [bp+6] [bp+10] [bp+12] [bp+14]

_set_bufferred_long PROC far

PUSH BP ;Preserve BP register

MOV BP,SP

PUSH SI ;Preserve SI register

PUSH DI ;Preserve DI register

PUSH ES ;Preserve ES register

MOV AX,[BP+12] ;i

MOV CX,[BP+10] ;m

DIV CX ;AX=I/M DX=I%M

MOV CX,2

MOV BX,DX ;BX=I%M

MUL CX ;AX=AX*2 =(I/M)*2

MOV ES,[BP+8]

MOV DI,[BP+6] ;address of arr

ADD DI,AX ;address of a[i] is the block inside the array

MOV SI,ES:[DI] ;[di]=the address of the memory where the block starts (each block contains m long int cells)

MOV AX,BX ;AX=I%M

MOV BX,4 ;each cell is long int=4

MUL BX

ADD SI,AX

MOV AX,[BP+14] ;first part of long int

MOV ES:[SI],AX

MOV AX,[BP+16] ;second part of long int

MOV ES:[SI+2],AX

POP ES ;Restore ES register

POP DI ;Restore DI register

POP SI ;Restore SI register

POP BP ;Restore BP register

RET

_set_bufferred_long ENDP

but while the program runs and compile the values are not placed correctly in the array, when i debug i see that when i try to get the address in a[i] (with the command MOV SI,ES:[DI]) ,si only gets the offset of the array ,and not the content of the cell (which should be the address of the partition i want to write to)

what am i doing wrong? (when i do the same program in model small with the proper changes it works fine)

any help would be appreciated

I am trying to write some multi threading programs (via the ptheread library), and I see that you need to create the function which the ptherad is calling in the following syntax

void *fucntionname() { printf("blabla"); }

What does the 'void *fucntionname' means?

In some places I found that it is the same as ''void * ‘

i.e. it just means that the function return value can be any type (int ,float ,char ,array).

But in other places I read that this means it's an fpointer (a pointer to the function), and as so when ptherad_create is called , you give it the address of the function you wish to call(and not the function name).

Which is true?

any explanation would be appreciated.

p.s

Is the following two forms different

void * print(){}

void *print(){}

i was given a question to create the fastest (most efficient ) program that receives an array (size of array n) , and return 1 if there is any duplication in the array (i,e for the array 1,2,3,1 -it should return 1)

to me it seems there is no difference between preforming a brute force check (o(n^2) or preforming some type of sort (bubble sort for example), and then checking duplicated (also n^2)

am i right?

p.s

as the values of the array are not limited hashing is not an option

what is the correct way to say:

book list or books list? trail list or trails list?

when do you use the singular and when do use a plural noun ,before the word "list"?