Operations and Functions

Built In Functions

Introduction:

Built-in function is a function that is already available in a programming language, application, or another tool that can be accessed by end users. The term “built-in” refers to the fact that these functions are part of the core functionality of the language. A variety of different office suites, business applications, and programming languages offer built-in functions to simplify the user experience. The following is a list of built-in functions that can be utilized in CL:

• %ADDRESS
  Syntax ->

  %ADDRESS(variable name) / %ADDR(variable name)

• %BINARY
  Syntax ->

  %BINARY(character-variable-name starting-position length)

• %CHECK
  Syntax ->

  %CHECK(comparator-string base-string [starting-position])

• %CHECKR
  Syntax ->

  %CHECKR(comparator-string base-string [starting-position])

• %OFFSET
  Syntax ->

  %OFFSET(variable name)/ %OFS(variable name)

• %SCAN
  Syntax ->

  %SCAN(search-argument source-string [starting-position])

• %SUBSTRING
  Syntax ->

  %SUBSTRING(character-variable-name starting-position length)/

  %SST(character-variable-name starting-position length)

• %SWITCH
  Syntax ->

  %SWITCH(8-character-mask)

• %TRIM
  Syntax ->

  %TRIM(character-variable-name [characters-to-trim])

• %TRIML
  Syntax ->

  %TRIML(character-variable-name [characters-to-trim])

• %TRIMR
  Syntax ->

  %TRIMR(character-variable-name [characters-to-trim])

• %CHAR
  Syntax ->

  %CHAR(convert-argument)

• %DEC
  Syntax ->

  %DEC(convert-argument [total-digits decimal-places])

• %INT
  Syntax ->

  %INT(convert-argument)

• %LEN
  Syntax ->

  %LEN(variable-argument)

• %LOWER
  Syntax ->

  %LOWER(input-string [CCSID])

• %UPPER
  Syntax ->

   %UPPER(input-string [CCSID])

• %PARMS
  Syntax ->

  %PARMS()

• %SIZE
  Syntax ->

  %SIZE(variable-argument)

• %UINT
  Syntax ->

  %UINT(convert-argument) / %UNS(convert-argument)

Operators In CL

Introduction:

It is a symbol that usually represents an action or process. These symbols were adapted from mathematics and logic. An operator can manipulate a certain value or operand. For example, in 2 + 3, the 2 and 3 are the operands and + symbol is operator. Below is the list of common operators that can be utilized in CL: