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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