NUL is the abbreviation for the null character in several character sets
NUL has a value of 0 and is often written as the escape sequence \0. It is used as a terminator in c standard strings.
Questions tagged [nul]
179 questions
0
votes
2 answers
How to modify an executable without corrupting it?
Is there a specific null char or a sequence of bytes which would not corrupt the executable if added in FRONT of the file? I tried adding NUL (00 hex) but it corrupts the executable every time. Is there some bytecode for NOP (no operation) or…
cen
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votes
1 answer
CMD Return ErrorLevel Without Running Program
I'm running Powershell commands through a CMD prompt and I'd like to check if Powershell is installed first before I start running my commands. I'd like the script to exit if powershell doesn't exist without showing the actual error below. Here's my…
Ken J
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2 answers
Why doesn't sizeof() doesn't include the NUL byte in this example?
Let's consider the following example:
int main()
{
char some_string[] = "12345678";
printf("%zu", sizeof(some_string));
return 0;
}
Output
9
...Program finished with exit code 0
Press ENTER to exit console.`
The above is correct. The…
Dimi
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1 answer
How do we check if a value in an array is Null (None) or not?
my code:
import random
print("AI THAT WILL FIND OUT YOUR 5 letter text")
ttt = input()
fin = False
lenof = 25
s = 0
used = []
lol = False
used = []
five = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r',…
Programmer
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-1
votes
1 answer
How To Recover CSS Rules From A Corrupted CSS File
My .css file was working fine but today I noticed the website is not acting based on CSS rules so I tried to inspect the rues on browser and surprisingly I noticed the CSS file is empty!
I tried to open the style.css file in Notepad++ and this is…
Suffii
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2 answers
How to check if string is null in c#.net
I am reading text file in c#.net
at the end one line is completely null but in foreach c# can not detect null string so It gets error
string[] lines = System.IO.File.ReadAllLines(dir);
List> items = new…
javad
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-1
votes
2 answers
jQuery: .height() returns null in .ready() but it works when run the same code console
I'am trying to assign the height to a main div container to give the scroll only to this "rightContent" div.
All I am doing is finding height of all other DIV and subtracting the heights of those DIVs with the "window" height, to give the height to…
UID
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-1
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3 answers
printf spits out garbage even though the char array is null terminated and checked
I have an assignment in which we're to make a Caesar (rot) cipher, but without using array notation (a[b]). It seems like it should work, but it spews out random garbage past the end of the string, even though a check is performed on lines 41 and…
anon
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votes
1 answer
How to write string not containing null byte character using python
How to write a string in a file ensuring that there is no nul byte character in a string in python?
f.write(x1+','+x2+','+x3)
Akash Agarwal
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votes
1 answer
PHPEXCEL weird characters on form inputs
I need some help with PHPEXCEL library, everything works great, I'm successfully extracting my SQL query to excel5 file, I need to give this file to transport company in order to auto collect informations about packages, unfotunately the generated…
Solidus
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votes
1 answer
Comparison in mysql Trigger for Null Value
This is my trigger after update record.
The old.ActivatedDate always is Null and new.ActivatedDate always is not Null.
This is my code, but it is not working because its condition is not returning true to continue other jobs.
SET @OldActivateDate :=…
Mazi Tizeh
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-3
votes
1 answer
Operator '+' is not defined for type 'integer' and type 'dbnull'
I'm try to calculate total column of data grid view, number data type in Oracle, data grid view column with null value.....
Dim X As Integer
Dim y As Integer
For line As Integer = 0 To dgvAccDetail.RowCount - 1
X = X +…
Ejaz Sarwar
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votes
1 answer
XLSX corrupt after accidental open & save in Notepad
Is there a programmatic, built-in, or external method to recover a corrupt Excel file?
I accidentally opened my .XLSX file (Excel 2010) in Windows Notepad, added a line of recognizable text, and saved it. Now the file cannot be opened by Excel, as…
karel
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votes
1 answer
Specific Value to a NULL Pointer
I was referring to NULL Pointer in What's the difference between a null pointer and a void pointer?
According to the post reply by @AnT, "Formally, each specific pointer type (int *, char * etc.) has its own dedicated null-pointer value"
I wrote…
Jon Wheelock
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