Caché ObjectScript Reference - InterSystems Documentation

Routine, Debugging, and Other CommandsArgumentspcCaché executes the ZZDUMP command if the postconditional expression is true (evaluatesto a non-zero numeric value). Caché does not execute the command if the postconditionalexpression is false (evaluates to zero). For further details, refer to Command PostconditionalExpressions in Using Caché ObjectScript.expressionYou can specify expression as a numeric, a string literal, a list, or a variable that resolves toone of these. You can specify a single expression, or a comma-separated list of expressions.Specifying a comma-separated list of expressions is parsed as issuing a separate ZZDUMPcommand for each expression.ExamplesThe following example shows ZZDUMP returning hex dumps for two single-character stringvariables. Note that each comma-separated expression is treated as a separate invocation ofZZDUMP:SET x="A"SET y="B"ZZDUMP x,y0000: 41 A0000: 42 BThe following example shows ZZDUMP returning a hex dump for a string variable too longfor a single dump line. Note that the position for the second dump line (0010:) is in hexadecimal:SET z="ABCDEFGHIJKLMNOPQRSTUVWXYZ"ZZDUMP z0000: 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 ABCDEFGHIJKLMNOP0010: 51 52 53 54 55 56 57 58 59 5A QRSTUVWXYZThe following example shows ZZDUMP returning hex dumps for three variables. Note thatno hex dump (not even a blank line) is returned for a null string variable. Also note that anumber is converted to canonical form (leading and trailing zeros and plus sign removed); astring containing a number is not converted to canonical form:SET x=+007SET y=""SET z="+007"ZZDUMP x,y,z416 Caché ObjectScript Reference