Jane.doe at 12:40, 31 March 2020

2020-03-31T12:40:12Z

← Older revision		Revision as of 12:40, 31 March 2020
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	This example shows an excerpt from a command procedure. The first assignment statement assigns the current procedure verification setting to the symbol SAVE_PROC_VERIFY. The second assignment statement assigns the current image verification setting to the symbol SAVE_IMAGE_VERIFY. Then, the SET NOVERIFY command disables procedure and image verification. Later, the F$VERIFY function resets the verification settings, using the original values (equated to the symbols SAVE_PROC_VERIFY and SAVE_IMAGE_VERIFY). The symbol TEMP contains the procedure verification before it is changed with the F$VERIFY function. (In this example, the value of TEMP is not used.)		This example shows an excerpt from a command procedure. The first assignment statement assigns the current procedure verification setting to the symbol SAVE_PROC_VERIFY. The second assignment statement assigns the current image verification setting to the symbol SAVE_IMAGE_VERIFY. Then, the SET NOVERIFY command disables procedure and image verification. Later, the F$VERIFY function resets the verification settings, using the original values (equated to the symbols SAVE_PROC_VERIFY and SAVE_IMAGE_VERIFY). The symbol TEMP contains the procedure verification before it is changed with the F$VERIFY function. (In this example, the value of TEMP is not used.)

	$ VERIFY = F$VERIFY(0) . . .		$ VERIFY = F$VERIFY() . . .
	$ IF VERIFY .EQ. 1 THEN SET VERIFY		$ IF VERIFY .EQ. 0 THEN SET VERIFY

	This example shows an excerpt from a command procedure that uses the F$VERIFY function to save the current procedure verification setting and to turn both procedure and image verification off. At the end of the command procedure, if procedure verification was originally on, both the procedure and image verification are turned on.		This example shows an excerpt from a command procedure that uses the F$VERIFY function to save the current procedure verification setting and to turn both procedure and image verification off. At the end of the command procedure, if procedure verification was originally on, both the procedure and image verification are turned on.

	[[Category:Lexical Functions]]		[[Category:Lexical Functions]]

Darya.zelenina: Created page with "'''F$VERIFY''' is a lexical function that returns an integer value indicating whether the procedure verification setting is currently on or off. If used..."

2019-06-28T19:13:34Z

Created page with "'''F$VERIFY''' is a lexical function that returns an integer value indicating whether the procedure verification setting is currently on or off. If used..."

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'''F$VERIFY''' is a [[Lexical functions|lexical function]] that returns an integer value indicating whether the procedure verification setting is currently on or off. If used with arguments, the F$VERIFY function can turn the procedure and image verification settings on or off. You must include the parentheses after the F$VERIFY function whether or not you specify arguments.

=Syntax=

F$VERIFY([procedure-value] [,image-value])

=Return Value=

The integer 0 if the procedure verification setting is off, or the integer 1 if the procedure verification setting is on.

=Arguments=

==procedure-value==

Specifies an integer expression with a value of 1 to turn procedure verification on, or a value of 0 to turn procedure verification off. When procedure verification is on, each DCL command line in the command procedure is displayed on the output device. Procedure verification allows you to verify that each command is executing correctly. If you use the procedure-value argument, the function first returns the current procedure verification setting. Then the command interpreter turns the procedure verification on or off, as specified by the argument.

==image-value==

Specifies an integer expression with a value of 1 to turn image verification on, or a value of 0 to turn image verification off. When image verification is on, data lines in the command procedure are displayed on the output device.

=Examples=

$ SAVE_PROC_VERIFY = F$ENVIRONMENT("VERIFY_PROCEDURE")
$ SAVE_IMAGE_VERIFY = F$ENVIRONMENT("VERIFY_IMAGE")
$ SET NOVERIFY
. . .
$ TEMP = F$VERIFY(SAVE_PROC_VERIFY, SAVE_IMAGE_VERIFY)

This example shows an excerpt from a command procedure. The first assignment statement assigns the current procedure verification setting to the symbol SAVE_PROC_VERIFY. The second assignment statement assigns the current image verification setting to the symbol SAVE_IMAGE_VERIFY. Then, the SET NOVERIFY command disables procedure and image verification. Later, the F$VERIFY function resets the verification settings, using the original values (equated to the symbols SAVE_PROC_VERIFY and SAVE_IMAGE_VERIFY). The symbol TEMP contains the procedure verification before it is changed with the F$VERIFY function. (In this example, the value of TEMP is not used.)

$ VERIFY = F$VERIFY(0) . . .
$ IF VERIFY .EQ. 1 THEN SET VERIFY

This example shows an excerpt from a command procedure that uses the F$VERIFY function to save the current procedure verification setting and to turn both procedure and image verification off. At the end of the command procedure, if procedure verification was originally on, both the procedure and image verification are turned on.

[[Category:Lexical Functions]]

F$VERIFY() - Revision history

Jane.doe at 12:40, 31 March 2020

Darya.zelenina: Created page with "'''F$VERIFY''' is a lexical function that returns an integer value indicating whether the procedure verification setting is currently on or off. If used..."