Quite possible.

To confirm, it is '\xf0' with surrounding quotes of \xF0 without quotes. Or
both?


On Wed, 17 Aug 2022 09:31:18 +0200 Bernd Oppolzer <[email protected]>
wrote:

:>Could it be that the source has been transferred in any way?
:>
:>It would be valid, if there was a backslash before the hex constant, 
:>like below;
:>backslash, followed by x, followed by two hex digits is a single char in C.
:>
:>str2 = str2 ¦ '\xF0';
:>
:>HTH, kind regards
:>
:>Bernd
:>
:>
:>
:>Am 17.08.2022 um 09:16 schrieb Binyamin Dissen:
:>> I have inherited some C code.
:>>
:>>    str2 = str2 ¦ 'xF0';
:>>    str1 = str1 >> 4;
:>>    str1 = str1 ¦ 'xF0';
:>>
:>> These receive
:>>
:>> CCN4118 Character constant 'xF0' has more than 1 character.
:>>
:>> Examining the source4 it appears the intent is for 0xF0
:>>
:>> 1. Why would this be a mere informational message? Seems like it should be a
:>> warning. that the sizes do not match.
:>>
:>> The code generated is
:>>
:>>
:>> *    str2 = str2 ¦ 'xF0';
:>>            SLR      r0,r0
:>>            IC       r0,str2(,r13,157)
:>>            O        r0,=F'10995440'
:>>            N        r0,=F'255'
:>>            STC      r0,str2(,r13,157)
:>> *    str1 = str1 >> 4;
:>>            SLR      r0,r0
:>>            IC       r0,str1(,r13,156)
:>>            SRA      r0,4
:>>            N        r0,=F'255'
:>>            STC      r0,str1(,r13,156)
:>> *    str1 = str1 ¦ 'xF0';
:>>            SLR      r0,r0
:>>            IC       r0,str1(,r13,156)
:>>            O        r0,=F'10995440'
:>>            N        r0,=F'255'
:>>            STC      r0,str1(,r13,156)
:>>
:>> 10995440 = x'A7C6F0' = 'xF0'
:>>
:>> 2. This is very old cold, not compiled for years (decades?). Was there a 
point
:>> in C compiler history where 'this was ever a valid hex constant?
:>>
:>> --
:>> Binyamin Dissen <[email protected]>
:>> http://www.dissensoftware.com
:>>
:>> Director, Dissen Software, Bar & Grill - Israel
:>>
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--
Binyamin Dissen <[email protected]>
http://www.dissensoftware.com

Director, Dissen Software, Bar & Grill - Israel

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