What are #error and #stdout directives ?

#error : Generate a compiler error and display a message

Syntax :

#error [<messageText>]

Arguments :

<messageText> is the text of the message to be displayed. <messageText> is a literal character string–do not enclose the message in quotations unless you want them to appear as part of the display.

Description :

#error causes the compiler to generate error number C2074. If the <messageText> parameter is specified, an error message is displayed.

Examples :

. This example displays an error message based on whether or not a NETWORK identifier was defined:

 #ifdef NETWORK
 #error Network version not implemented.
 #endif

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#stdout : Send literal text to the standard output device

Syntax :

#stdout [<messageText>]

Arguments :

<messageText> is the text of the message to display. <messageTest> is a literal character string. Do not enclose the message in quotation marks unless you want them to appear as part of the display.

Description :

#stdout causes the compiler to output the literal text to the standard output device (stdout) during compilation. If <messageText> is not specified, a carriage return/line feed pair echoes to stdout.

Warning! Manifest constants are not translated in #stdout. Implementation is identical to #error with the following exceptions: output is written to STDOUT and no compiler error is generated.

Examples :

This example demonstrates use of #stdout:

 #ifdef DEBUG
     #stdout Compiling debugging version...
 #endif

PROCEDURE Main()

 ? "Hello world"

RETURN

#stdout End of "Hello World" program