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The SAS system was originally a single instruction, single data (SISD) engine, but single instruction, multiple data (SIMD) and multiple instruction, multiple data (MIMD) functionality was later added. [9] Most base SAS code can be ported between versions, but some are functions and parameters are specific to certain operating systems and ...
In computer programming, a naming convention is a set of rules for choosing the character sequence to be used for identifiers which denote variables, types, functions, and other entities in source code and documentation. Reasons for using a naming convention (as opposed to allowing programmers to choose any character sequence) include the ...
Sass allows variables to be defined. Variables begin with a dollar sign ($). Variable assignment is done with a colon (:). [18] SassScript supports four data types: [18] Numbers (including units) Strings (with quotes or without) Colors (name, or names) Booleans; Variables can be arguments to or results from one of several available functions. [19]
Some languages define a special character as a terminator while some, called line-oriented, rely on the newline. Typically, a line-oriented language includes a line continuation feature whereas other languages have no need for line continuation since newline is treated like other whitespace .
New functions for manipulating dates include – DAYS and DAYSTODATE for converting between dates and number of days, and a general DATETIME function for changing date formats. New string-handling functions were added – to centre text, to edit using a picture format, and to trim blanks or selected characters from the head or tail of text ...
When working with variable arguments, a function normally declares a variable of type va_list (ap in the example) that will be manipulated by the macros. va_start takes two arguments, a va_list object and a reference to the function's last parameter (the one before the ellipsis; the macro uses this to get its bearings).
In a programming language, a reserved word (sometimes known as a reserved identifier) is a word that cannot be used by a programmer as an identifier, such as the name of a variable, function, or label – it is "reserved from use".
In C and many derivative programming languages, a string escape sequence is a series of two or more characters, starting with a backslash \. [3]Note that in C a backslash immediately followed by a newline does not constitute an escape sequence, but splices physical source lines into logical ones in the second translation phase, whereas string escape sequences are converted in the fifth ...