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In 1973, ECMA-35 and ISO 2022 [18] attempted to define a method so an 8-bit "extended ASCII" code could be converted to a corresponding 7-bit code, and vice versa. [19] In a 7-bit environment, the Shift Out would change the meaning of the 96 bytes 0x20 through 0x7F [a] [21] (i.e. all but the C0 control codes), to be the characters that an 8-bit environment would print if it used the same code ...
The control code ranges 0x00–0x1F ("C0") and 0x7F originate from the 1967 edition of US-ASCII.The standard ISO/IEC 2022 (ECMA-35) defines extension methods for ASCII, including a secondary "C1" range of 8-bit control codes from 0x80 to 0x9F, equivalent to 7-bit sequences of ESC with the bytes 0x40 through 0x5F.
Six-bit BCD code was the adaptation of the punched card code to binary code. IBM applied the terms binary-coded decimal and BCD to the variations of BCD alphamerics used in most early IBM computers, including the IBM 1620 , IBM 1400 series , and non- decimal architecture members of the IBM 700/7000 series .
A basic_string is guaranteed to be specializable for any type with a char_traits struct to accompany it. As of C++11, only char, wchar_t, char16_t and char32_t specializations are required to be implemented. [16] A basic_string is also a Standard Library container, and thus the Standard Library algorithms can be applied to the code units in ...
^ The current default format is binary. ^ The "classic" format is plain text, and an XML format is also supported. ^ Theoretically possible due to abstraction, but no implementation is included. ^ The primary format is binary, but text and JSON formats are available. [8] [9]
There are five possible reasons to assign an alias name to a code point. [1] A character can have multiple aliases: for example U+0008 <control-0008> has control alias BACKSPACE and abbreviation alias BS. 1. Abbreviation Commonly occurring abbreviations (or acronyms) for control codes, format characters, spaces, and variation selectors.
And they add «Control Codes. Sixty-five code points (U+0000..U+001F and U+007F..U+009F) are defined specifically as control codes, for compatibility with the C0 and C1 control codes of the ISO/IEC 2022 framework. A few of these control codes are given specific interpretations by the Unicode Standard. (See Section 16.1, Control Codes.)»
DAM no.3 to ISO/IEC 10646-1 (Coding of C1 controls), 1995-06-01: N1307: Table of replies to JTC1 letter ballot on 10646 DAM 3, Coding of C1 Controls, (SC2 N 2666), 1996-01-15: N1309: Paterson, Bruce (1996-01-17), Report and Disposition of Comments on DAM 1, UTF 16 and DAM 2, UTF-8, DAM 3, Coding of C1 Controls, and DAM 4, Removal of Annex G ...