Singular

5.1.16 dbprint

Syntax:

dbprint ( int_expression, expression_list )

Type:

none

Purpose:

applies the print command to each expression in the expression_list if int_expression is positive. dbprint may also be used in procedures in order to print results subject to certain conditions.

Syntax:

dbprint ( expression )

Type:

none

Purpose:

The print command is applied to the expression if printlevel>=voice.

Note:

See Libraries, for an example how this is used for displaying comments while procedures are executed.

Example:

int debug=0; intvec i=1,2,3; dbprint(debug,i); debug=1; dbprint(debug,i); ==> 1, ==> 2, ==> 3 voice; ==> 1 printlevel; ==> 0 dbprint(i);