Determines whether the first character in a character expression is an uppercase alphabetic character.
Syntax
ISUPPER(cExpression)
Returns
Logical
Arguments
cExpression
Specifies the character expression that ISUPPER( ) evaluates. Any characters after the first character in cExpression are ignored.
Remarks
ISUPPER( ) returns true (.T.) if the first character in a character expression is an uppercase alphabetic character; otherwise, ISUPPER( ) returns false (.F.).