C / C++ / MFC

Programm3r wrote:

char TestString[3];

char TestString[3] = {0};
or 
char TestString[3] = "";
cout<<strlen(TestString)<<endl;

Programm3r wrote:

char TestString[3];<code></blockquote><br />
<br />
is not empty, it's random (junk) initialised (end it is not <code>NULL

terminated!).

maybe the following code snipped will help you:

char TestString[3]="";



if (!strcmp(TestString,  ""))
{
    printf("empty\n");
}
else
{
    printf("not empty: %s\n", TestString);
}

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

kakan wrote:

n debug, the allocated buffer becomes filled with null-bytes.
In release-build, it isn't. It's filled with junk characters (whatever is on the stack).

Shailesh Halankar wrote:

how do i solve this?

Shailesh Halankar wrote:

i include a header file of a class in a ".c" file

Shailesh Halankar wrote:

when i include a header file of a class in a ".c" file

Aljechin wrote:

*dest = "";

char *source = "Hi", *dest = "";
//while(*source++) *dest++ = *source;
dest = "Hello world";

Aljechin wrote:

Neither have I allocated memory for the source...

kakan wrote:

Yes you have. source is 3 characters long, "Hi" and the terminating null byte.

main(){
     char temp[30];
     char *source = "Hi", *dest = temp;
     while(*source++) *dest++ = *source;
}

kakan wrote:

You shouldn't do it this way. Try this instead:

main()
{
     char *source = "Hi", *dest = "";
     while(*source++) *dest++ = *source;
}