CAT_EGT0F - Get the formatted value of a scalar exprn. field or parameter

Description:

Get the formatted value of a scalar expression, evaluated from the current row buffer, field or parameter. The value is formatted into a CHARACTER string using the appropriate external format specifier.

Remember that parameter and column identifiers correspond to valid expressions.

Invocation:

CALL CAT_EGT0F (GI; VALUE, NULFLG; STATUS)

Arguments:

GI = INTEGER (Given)

Identifier for either an expression, field or parameter.

VALUE = CHARACTER$*$($*$) (Returned)

Value to which the expression evaluates for the current row buffer. If the expression evaluates to null the string returned is '$<$null$>$' if VALUE contains six or more characters, otherwise it is '?'.

NULFLG = LOGICAL (Returned)

A flag indicating whether or not the expression evaluates to the null value or not: .TRUE. - The expression is null, .FALSE. - The expression is not null; a genuine value is available.

STATUS = INTEGER (Given and Returned)

The global status.

Copyright

Copyright (C) 1999 Central Laboratory of the Research Councils

Bugs:

None known