Multiplication of numbers stored in a USUAL

[ArneOrtlinghaus]

Describe the bug
The expression
18 *596 *735 *875
returns -1690489592
instead of
6899445000

To Reproduce
Macro execution as above

Expected behavior
Usage of Int64 as it is used in addition operations
18.0 *596 *735 *875
gives the correct value

Screenshots

Desktop (please complete the following information):
Win 11
XShart 2.24 from 13.7.2025

Additional context
This problem has arrived when using the X#-Macros for resolving "Advent of code".
So this is not a problem in our current program usage.

[RobertvanderHulst]

The problem is not in the macro compiler, but in the USUAL Multiply operator.
The following code shows the same problem:

FUNCTION Start() AS VOID STRICT
   LOCAL u1, u2, u3, u4
   u1 :=  18
   u2 := 596
   u3 := 735
   u4 := 875
    ? Str(u1 * u2 * u3 * u4,20,0)
    ? 18 *596 *735 *875
    WAIT
    RETURN

I will change the Multply operator for 2 Longs:

• When the product is larger than Int32.MaxValue then the result will be an Int64

[ArneOrtlinghaus]

Robert, thanks for verifying. Later I have seen that the same can happen with addition of small numbers. But it did not happen always, so I was surprised to be able to use large numbers without need of using floating point numbers. Arne From: Robert van der Hulst ***@***.***> Sent: Thursday, December 11, 2025 5:37 PM To: X-Sharp/XSharpPublic ***@***.***> Cc: Arne Ortlinghaus ***@***.***>; Author ***@***.***> Subject: Re: [X-Sharp/XSharpPublic] Multiplication of numbers in the macro execution (Issue #1764) ***@***.***RobertvanderHulst left a comment (X-Sharp/XSharpPublic#1764)<#1764 (comment)> The problem is not in the macro compiler, but in the USUAL Multiply operator. The following code shows the same problem: FUNCTION Start() AS VOID STRICT LOCAL u1, u2, u3, u4 u1 := 18 u2 := 596 u3 := 735 u4 := 875 ? Str(u1 * u2 * u3 * u4,20,0) ? 18 *596 *735 *875 WAIT RETURN I will change the Multply operator for 2 Longs: * When the product is larger than Int32.MaxValue then the result will be an Int64 - Reply to this email directly, view it on GitHub<#1764 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AN2WBASPH3SUKBRT7LJ5ZB34BGMTBAVCNFSM6AAAAACOJAIU5GVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTMNBSG43TMMBQHE>. You are receiving this because you authored the thread.Message ID: ***@***.******@***.***>>