C / C++ / MFC

S. Senthil Kumar wrote:

A byte is 8 bits

jithAtran - ii wrote:

Does the compiler holds anything like a stack to store the datatype?

char a = 'a';
char *pChar = &a;
void *pVoid = pChar;
int *pInt = (int *)pVoid;
*pInt = 12345;

int *i;
    static float *k;
    int j;
    i=&j;
    k=&j;//points to the same memory location
    printf("%d ,%f",*i,*k)

jithAtran - ii wrote:

I still have doubt in this part.How compiler knows i is an integer.where the command "You should read only 4 bytes for i since its an integer" is stored.

jithAtran - ii wrote:

Will it throw error if we performed like this.

float q;
i=&q;

S. Senthil Kumar wrote:

the compiler knows that i is a pointer to an integer

jithAtran - ii wrote:

That means i has been given an address space in the memory(1000/1001).
Now we are trying to store an address say

like
______________
__00__|___7D__ where 007D is the address of a
1000 1001 float variable.

Now here is my doubt.How compiler knows this assignment is wrong.

int *p = 0x007D;

float k = 10.0;
int *p = &k;

S. Senthil Kumar wrote:

the compiler allocates a certain number of bytes (depending on the platform) on the stack.

struct Data
{
    int number;
    int *pNumber;
};

// Code like this will allocate the memory for a "Data" struct on the stack.
// So the member "number" (not a pointer at all) and "pNumber" (is a pointer)
// will both be allocated on the stack.
void Function()
{
    Data IsOnTheStack;
    // Do stuff...
}

// Code like this will not use the stack.
// The memory will be in a data segment of the executable.
Data InDataSegment; // At global scope.

// Now code like this will place the struct (and its members) on the heap.
// The storage for the actual pointer "pData" may be on the heap, stack or
// a data segment in a module but the actual structure and it members are
// on the heap.
Data *pData = new Data;

Stephen Hewitt wrote:

This is not always the case: the pointer need not be allocated on the stack.

Ganesh_T wrote:

use SYSTEMTIME structure or CTime

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

/* STRTIME.C */

#include <time.h>
#include <stdio.h>
 
void main( void )
{
   char dbuffer [9];
   char tbuffer [9];
   _strdate( dbuffer );
   printf( "The current date is %s \n", dbuffer );
   _strtime( tbuffer );
   printf( "The current time is %s \n", tbuffer );
}

Aqueel wrote:

I am working in network programming. Its a multiclient server chat program. Each client works in saparate thread. I create thread when some client request the server to connect. I used _beginthread to create thread.
When i build the file, i get following error.

unresolved external symbol __beginthread

I have included ws2_32.lib but still it does not work.
Can you please help me?
Thanks

Aqueel wrote:

used _beginthread to create thread.
When i build the file, i get following error.

unresolved external symbol __beginthread

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

Immunity18 wrote:

How i can count the lines of a list box ?

Immunity18 wrote:

How i can clear the List box ?

Immunity18 wrote:

test.txt
tess.txt
test.mp3
test.doc
test.dll

now How i can say " in 3rd line is test.mp3"

CString str, str2;
int n;
for (int i=0;i < pmyListBox-><code>GetCount()</code>;i++)
{
 
   n = pmyListBox->GetTextLen( i ); //length of the text at position <code>i</code>
 
   pmyListBox-><code>GetText</code>( i, str.GetBuffer(n) ); //get text of item at position <code>i</code>.
   str.ReleaseBuffer();
 
   //format the item that you got
   str2.Format(_T("item %d: %s\r\n"), i, str.GetBuffer(0));
   
   //display it, this messagebox is trouble :). You can change it to something else
   MessageBox(str2);

}