C / C++ / MFC

Programm3r wrote:

I know memcpy will work but it will also wipe the data that is already in the buffer.

/* memcpy example */
#include <stdio.h>
#include <string.h>

int main ()
{
  char str1[]="Sample string";
  char str2[]="Another string";
  memcpy (str2,str1,strlen(str1)+1);
  printf ("Contents of buffer2:",str2);
  return 0;
}

---

The only programmers that are better that C programmers are those who code in 1's and 0's


Programm3r
My Blog: ^_^

Programm3r wrote:

char str1[]="Sample string"; char str2[]="Another string"; memcpy (str2,str1,strlen(str1)+1);

memcpy (str2 + strlen(str2), str1, strlen(str1)+1);

memcpy (byDestBuffer + dwCntDataInDestBuffer, 
         bySrcBuffer, dwCntDataInSrcBuffer);
dwCntDataInDestBuffer += dwCntDataInSrcBuffer;

Programm3r wrote:

I then want to concat it to another buffer. And that is aboput that ....

Cedric Moonen wrote:

I suggest you use a std::string instead of plain char arrays,

Rajesh R Subramanian wrote:

Only if he was using C++.

Rajesh R Subramanian wrote:

We're addicted to C++

CPallini wrote:

What are these two fancy symbols following the only Real Man's Language?

#include "stdio.h"

void strcpyEx(char* dest, const char* source, int iLen)
{
    int i;
    for(i=0;i<iLen;++i)
    {
        dest[i] = source[i];
    }

}
int main()
{
    char a[] = {'\0','\0','H','i','\0'};
    char b[5];

    strcpy(b,a);
    printf("Attempting strcpy... b[3] is %d\n",b[3]);

    strcpyEx(b,a,4);
    printf("Attempting strcpyEx... b[3] is %d\n",b[3]);

    return 0;
}

Programm3r wrote:

I know memcpy will work but it will also wipe the data that is already in the buffer.

DavidCrow wrote:

One of the basic rules of physics states that no two objects can occupy the same space.

DavidCrow wrote:

One of the basic rules of physics states that no two objects can occupy the same space

Greetings.
--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
“The First Rule of Program Optimization: Don't do it. The Second Rule of Program Optimization (for experts only!): Don't do it yet.” - Michael A. Jackson