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A question of strstr() and fgets() in a demo from the book《Head First C》


By : Vern
Date : September 16 2020, 06:00 PM
may help you . This is because fgets reads at most the length 80-1 = 79 characters (it leaves 1 character which becomes null termination) but it stops reading after the line feed \n character that gets appended to stdin after you type "wonderful" and press enter. It copies this \n character to your buffer though, so the input string is actually "wonderful\n\0", which doesn't match the data you have, because of the line feed.
Now as you happen to declare the buffer size 10 instead, fgets doesn't have room to store the \n, but still null terminates the string - that's why it works by accident.
code :
fgets(search_for, 80, stdin); 
search_for[strlen(search_for)-1] = '\0';
find_track(search_for);
if(fgets(search_for, 80, stdin) != NULL)
{
  search_for[strlen(search_for)-1] = '\0';
  find_track(search_for);
}


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C# Newbie Question from tutorial book: "Head Start C# Greyhound Lab"


By : Sunny Goh
Date : March 29 2020, 07:55 AM
will be helpful for those in need If you need to access something, why don't you just give it access? Like passing it as a argument to the method.
code :
public void MoveThatPic(PictureBox picBox, int distance) // New method, 
                                      // takes a variable called Distance.

{
    MessageBox.Show(distance.ToString()); // Just show us that Variable.


    // I need to be able to access Form1's picture box before I can use this. :(
    Point BoxMovement = picBox.Location; //create a point called BoxMovement
    BoxMovement.X += distance; // Adjust the X of that by distance.
    picBox.Location = BoxMovement; // now adjust the Box by the Point's location.
}
private void button2_Click(object sender, EventArgs e)
{
    PicMover PicMoverObject1 = new PicMover(); // Reserve Space for&Create object
    PicMoverObject1.MoveThatPic(MyPictureBox, 5); // Execute Object Method with a value of 5
}

classpath question, head first servlets book


By : Akshay Bhange
Date : March 29 2020, 07:55 AM
Does that help Which edition of the book are you using? The /common/lib is true for until with Tomcat 5.5 (Servlet 2.4). Since Tomcat 6.x (Servlet 2.5) and on the Servlet API libraries are available in /lib folder.

fgets & strstr do not seems to work?


By : Kiran
Date : March 29 2020, 07:55 AM
wish helps you The fgets man page says
code :
c [ strcspn(c, "\r\n") ] = 0;

Leetcode 28 - Implement strStr(): question


By : user3064476
Date : March 29 2020, 07:55 AM
To fix this issue I am experiencing a bug in my submissions for Leetcode 28 that has thus far eluded me. My code works for most test cases but I am getting hung up on scenarios such as haystack = "mississippi", needle = "issip". , The problem is that you modify i in
code :
if (haystack[i++] != needle[j]) {
if (haystack[i + j] != needle[j]) {

unexpected result in using fgets and strstr


By : Randolph Judy
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , fgets stores the '\n' - newline (entered when enter key is pressed) in the read buffer as well. So your search string s2 becomes "is\n" which is not present in the s1 to aptr is NULL and that is being printed.
You need to trim the '\n' from s2, you can do that by
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