+
Addition, unary positive, concatenation (Math, Character)
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Syntax
<nNumber1> + <nNumber2> (addition)
<dDate> + <nNumber> (addition)
<cString1> + <cString2> (concatenation)
Type
Character, date, memo, numeric
Operands
<nNumber1> is a numeric value to increment by <nNumber2>.
<dDate> is a date value to increment by <nNumber> days.
<cString2> is a character string to join to the end of
<cString1>.
Description
The (+) operator performs a number of different operations depending on
the data types of the operands:
. Unary positive sign (numeric): A numeric expression prefaced
with the plus (+) operator performs no operation on the operand
except to enforce a higher level of precedence than other numeric
operations (except the unary minus).
. Binary addition sign (numeric, date): If both operands are
numeric, <nNumber2> is added to <nNumber1> and the result is returned
as a numeric value. If either operand is date data type and the
other operand numeric data type, the <nNumber> is added as days to
the <dDate> and a date value is returned.
. Concatenation (character, memo): If both operands are
character, <cString2> (the right operand) is concatenated to
<cString1> (the left operand) returning a character string.
Examples
. These examples illustrate the various forms of the + operator:
// Binary addition (numeric)
? 1 + 1 // Result: 2
? 1 + 0 // Result: 1
? 0 + 1 // Result: 1
// Binary addition (date)
? CTOD("12/12/88") + 12 // Result: 12/24/88
? 12 + CTOD("12/12/88") // Result: 12/24/88
// Concatenation (character)
? "Hi " + "there" // Result: Hi there
See Also: % * ** – / = (compound)
