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indent is a Unix utility that reformats C and C++ code in a user-defined indentation style and coding style. Support for C++ code is minimal. [3] The original version of indent was written by David Willcox at the University of Illinois in November 1976. It was incorporated into 4.1BSD in October 1982. [4] GNU indent was first written by Jim ...
In computer programming, indentation style is a convention, a.k.a. style, governing the indentation of blocks of source code.An indentation style generally involves consistent width of whitespace (indentation size) before each line of a block, so that the lines of code appear to be related, and dictates whether to use space or tab characters for the indentation whitespace.
In order to denote the byte with numerical value 1, followed by the digit 1, one could use "\1""1", since C concatenates adjacent string literals. Some three-digit octal escape sequences are too large to fit in a single byte. This results in an implementation-defined value for the resulting byte.
The biggest difference between the two is the location of the braces: in the GNU style, opening and closing braces are on lines by themselves, with the same indent. BSD style places an opening brace at the end of the preceding line, and the closing braces can be followed by else. The size of indent and location of whitespace also differs.
The consistent treatment of blocks as statements (for the purpose of indentation) is a very distinctive feature of the GNU C code formatting style; as is the mandatory space before parentheses. All code formatted in the GNU style has the property that each closing brace, bracket or parenthesis appears to the right of its corresponding opening ...
> The GNU Emacs text editor and the GNU systems' indent command will reformat code according to this style by default. [ dubious – discuss ] On Ubuntu 18.04, I tested indent (which is version 2.2.11).
GNU cflow – generates C flow graphs; GNU cppi – indents C preprocessor directives in files to reflect their nesting; GNU Fontutils – font management utilities; GNU gperf – perfect hash function generator; GNU indent – program to indent C and C++ source code; GNU complexity – measures the complexity of C source code [23]
The off-side rule describes syntax of a computer programming language that defines the bounds of a code block via indentation. [1] [2]The term was coined by Peter Landin, possibly as a pun on the offside law in association football.