AT&T 6300 Programmer's Manual page 433

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Reads values from one or more DATA

statements and assigns them to variables.

READ variable [ , variable]...

each variable in the list may be a numeric or string variable.

The type of the variable must agree with the type of the

associated value in the DATA sequence.

A READ statement must always be used in

conjunction with a DATA statement. READ

statements assign variables to DATA

statement values on a one-to-one basis. If the

data type (numeric or string) of an entry in the

data sequence does not correspond to the type

of the associated variable, a "Syntax error"

will result. However any numeric data type

(integer, single or double precision) may be

assigned to any numeric variable.

A single READ statement may access one or

more DATA statements (they will be accessed

in order), or several READ statements may

access the same DATA statement. If the

number of variables in the list of variables

exceeds the number of elements in the DATA

statement(s), an "Out of data" error message

is printed. If the number of variables specified

is fewer than the number of elements in the

DATA statement(s), subsequent READ

statements will begin reading data at the first

unread element. If there are no subsequent

READ statements, the extra data is ignored.

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