PureBasic Forums - English

Posted: **Mon Jan 26, 2026 11:48 pm**

This code generates an IMA in line 7:

Procedure.s Test(String.s)
	ProcedureReturn UCase(String) + LCase(String)
EndProcedure

Define String.s = "UpperLower"

Define NewString.s = Test(String)

Debug NewString

Or even simpler:

Code: Select all

Define String.s = "UpperLower"

Define NewString.s = UCase(String) + LCase(String)

Debug NewString

Posted: **Wed Jan 28, 2026 11:03 am**

You had the purifier on ?

Posted: **Wed Jan 28, 2026 11:18 am**

Fred wrote: Wed Jan 28, 2026 11:03 am You had the purifier on ?

No. I used a fresh installation. Nothing is enabled in the compiler options, except the debugger.
Output is:

[11:17:31] Waiting for executable to start...
[11:17:31] Executable type: Windows - x64 (64bit, Unicode)
[11:17:31] Executable started.
[11:17:31] [ERROR] Line: 7
[11:17:31] [ERROR] Invalid memory access. (read error at address 18446744072099135680)

Posted: **Wed Jan 28, 2026 11:29 am**

I see, seems to be fixed in my current build.

PureBasic Forums - English

[Done] PB 6.40 Alpha 1 - Can't use UCase and LCase on the same string during concation

[Done] PB 6.40 Alpha 1 - Can't use UCase and LCase on the same string during concation

Re: PB 6.40 Alpha 1 - Can't use UCase and LCase on the same string during concation

Re: PB 6.40 Alpha 1 - Can't use UCase and LCase on the same string during concation

Re: PB 6.40 Alpha 1 - Can't use UCase and LCase on the same string during concation