Null character

control character whose bits are all 0

The null character is a control character with the value zero. Many character sets include a code point for a null character – including Unicode (Universal Coded Character Set), ASCII (ISO/IEC 646), … Wikipedia

Wikipedia

en.wikipedia.org › wiki › Null_character

Null character - Wikipedia

1 week ago - Originally, its meaning was like NOP – when sent to a printer or a terminal, it had no effect (although some terminals incorrectly displayed it as space). When electromechanical teleprinters were used as computer output devices, one or more null characters were sent at the end of each printed line to allow time for the mechanism to return to the first printing position on the next line.

Representation

Asciihex

asciihex.com › character › control › 0 › 0x00 › nul-null-character

ASCII Table: ASCII character NUL - Null character. ^@. Dec: 0, Bin: 00000000, Hex: 00

ASCII table char NUL - Null character ^@. Decimal code: 0. Codepage group: CONTROL

Stack Overflow

stackoverflow.com › questions › 13604664 › what-is-a-null-in-hexadecimal

assembly - What is a NULL in hexadecimal - Stack Overflow

Top answer

1 of 1

Null is 00 in hexadecimal.

Kindly refer to this: http://www.asciitable.com/

NI Community

forums.ni.com › community › discussion forums › most active software boards › labview › removal of a null character from hexadecimal text string

Removal of a null character from hexadecimal text string - NI Community

December 20, 2005 - All you need is a filter: read each single character (VISA read with lenght 1) and case string equals \00 discard the value · Greetings from Germany Henrik LV since v3.1 “ground” is a convenient fantasy '˙˙˙˙uıɐƃɐ lɐıp puɐ °06 ǝuoɥd ɹnoʎ uɹnʇ ǝsɐǝld 'ʎɹɐuıƃɐɯı sı pǝlɐıp ǝʌɐɥ noʎ ɹǝqɯnu ǝɥʇ' ... I have attached my Labview code and also a snap-shot of the front panel after I have run the code. The two arrays of interset are the hexadecimal text array and decimal number array.

CodeProject

codeproject.com › Questions › 725651 › Use-Null-Character-in-Binary-HEX-file

Use Null Character in Binary (HEX) file - CodeProject

Top answer

1 of 2

If I understand your intent, then change this line: · _name = name.PadRight(CHAR_ARRAY_LENGTH, ' ').ToCharArray(); · to this: · _name = name.PadRight(CHAR_ARRAY_LENGTH, '\0').ToCharArray();

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Please see my comment to the question. It should be apparent that the question is based on very fundamental misunderstanding of some basics, so further discussion would make no sense. I would only note that you don't have to interpret data as characters, and even if you do, null character technically is no different from any other characters. · —SA

IBM

ibm.com › support › pages › can-null-character-hex-00-be-written-or-pulled-tofrom-application-field-sci51554

Can NULL character (Hex 00) be written or pulled to/from an application field? (SCI51554)

Hex 00 or nulls cannot be written from the inbound mapper to an application field.

Microchip Forum

forum.microchip.com › s › topic › a5C3l000000MYOLEA4 › t362261

Sending NULL in Hex Strings

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OSDev Wiki

wiki.osdev.org › Null_Character

Null Character - OSDev Wiki

From this point forward, when we mention the null character/terminator, we will refer to a 8-bit ASCII NULL character, represented as 0x00 in hexadecimal or, in C, as the escape sequence '\0' (not to confuse with "\0", which in C is a null-terminated string containing one null character).

IBM

ibm.com › support › pages › null-terminator-or-0x00-string-hex

NULL terminator (or 0x00) in a string - hex

Why does NULL value (or 0x00) appears in nco_sql output - hexadecimal format ?

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Notepad++ Community

community.notepad-plus-plus.org › topic › 18640 › how-do-you-revert-command-symbols-e-g-nul-to-actual-characters

How do you revert command symbols (e.g. NUL) to actual characters? | Notepad++ Community

December 19, 2019 - Since internally, Scintilla uses the three letters N, U, and L in the current font (though obviously styled differently, to give the black box – see my animation above) for representing the NULL character, then your font will render that as the hex codes for N, U, and L, because those are what are being displayed.

Qnx

qnx.com › developers › docs › qnxcar2 › topic › com.qnx.doc.neutrino.qed_manual › topic › reference_NUL_character.html

The NUL Character (hex 00)

The NUL character (hex 00) is used internally by the editor to delimit strings. It is therefore not possible to save this character in your buffer.

Cprogramming

cboard.cprogramming.com › c-programming › 6831-ascii-code-null-character.html

ASCII code for a NULL character

The ASCII character for NULL is NULL, its decimal value is 000, its hex value is 00 and its binary value is 0000 0000.

ASCII Code

ascii-code.com › character › ␀

Null character - ASCII Code

In some cases, it is referred to as the NUL character. Here are some key details: In ASCII and Unicode, the null character is defined to be U+0000, meaning it is represented in Unicode as the number 0.

Super User

superuser.com › questions › 61742 › how-to-insert-a-null-character-ascii-00-in-notepad

windows - How to Insert a Null Character (ASCII 00) in Notepad? - Super User

Top answer

1 of 3

This is not possible to do with Notepad, however, it can be done with a more advanced editor.

With Notepad++

Go to Edit > Character Panel to show the ASCII Insertion Panel.
Put the cursor where you want to insert the character.
Double-click the character (in the Character column) to insert.

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With Notepad++

From HEX

Type 00 00 00
Select this text
TextFX > TextFX Convert > Convert Hex to text

From Base64

Type AA==
Select this text
Plugins > MIME Tools > Base64 Decode

The mapping is:

NUL -> AA=
NUL NUL -> AAA=
NUL NUL NUL -> AAAA

Unicode Compart

compart.com › en › unicode › U+0000

Find all Unicode Characters from Hieroglyphs to Dingbats – Unicode Compart

U+0000 is the unicode hex value of the character (NUL). Char U+0000, Encodings, HTML Entitys:,, UTF-8 (hex), UTF-16 (hex), UTF-32 (hex)

Quora

quora.com › How-do-you-write-a-null-character

How to write a null character - Quora

Answer (1 of 3): By definition, the null character is all zeroes, both in the ASCII (ISO/IEC 646) character set (hex code 00) and in the ISO/IEC 10646 character set (Universal Multi-Octet Character Set), in both the UCS-2 encoding (hex code ...

reddit.com › r/cprogramming › null character '\0' & null terminated strings

r/cprogramming on Reddit: Null character '\0' & null terminated strings

December 25, 2022 -

Hello everyone!
In C, strings (character arrays) are terminated by null character '\0' - character with value zero.
In ASCII, the NUL control code has value 0 (0x00). Now, if we were working in different character set (say the machine's character set wouldn't be ASCII but different one), should the strings be terminated by NUL in that character set, or by a character whose value is zero?

For example, if the machine's character set would be UTF-16, the in C, byte would be 16bits and strings would be terminated by \0 character with value 0x00 00, which is also NUL in UTF-16.
But, what if the machine's character set would be modified UTF-8 (or UTF-7, ...). Then, according to Wikipedia, the null character is encoded as two bytes 0xC0, 0x80. How would be strings terminated in that case? By the byte with value 0 or by the null character.

I guess my question could be rephrased as: Are null terminated strings terminated by the NUL character (which in that character set might be represented by a nonzero value) or by a character whose value is zero (which in that character set might not represent the NUL character).

Thank you all very much and I'm sorry for all mistakes and errors as english is not my first language.

Thanks again.