L
liu
how c language to realize multiple ? can anyone tell me , thank you!
J
Joona I Palaste
liu said:
Multiple *what*?
M
Mark A. Odell
liu said:
That's easy, just define it, e.g.
int main(void)
{
int multiple; /* <-- multiple now realized */
return 0;
}
Glad to help.
M
Morris Dovey
liu said:
Liu...
English language problem:
multiple == more than one
Did you mean multiply (mathematical operation) ?
J
Jarno A Wuolijoki
Bizarrely. Avoid them.
(or look up trigraphs if you really need the gory details)
C
CBFalconer
liu said:
char queries[] = "????????????????";
J
James Hu
Aha! You have an excellent natural language parser in your noggin.
Does the OP mean in a string literal or character constant? The answer
is to use the \? escape sequence.
-- James
A
Arthur J. O'Dwyer
Quick -- what is the output of
puts(queries);
No peeking!
-Arthur,
?????
P
Peter Nilsson
Arthur J. O'Dwyer said:
Quick -- what is the output of
puts(queries);
????????????????
No peeking!
A more interesting scenario is...
char queries[] = "'????????????????'";
Mac programmers of old should know, or at least know there's a potential
problem.
C
CBFalconer
Arthur J. O'Dwyer said:
Quick -- what is the output of
puts(queries);
No peeking!
It is "????????????????" without the quotes and with a final
'\n'. Assuming a system that conforms to the C standard.
A
Arthur J. O'Dwyer
Whoops -- my memory was faulty! I could've sworn there
was an "escape" trigraph ??? => ?, so that the above would
print fewer ?s than expected. But there's not. Peter and
Chuck are correct.
<ot>
Did some Mac language contain the ??' => ^ trigraph?
</ot>
-Arthur
S
Sheldon Simms
Old Mac C compilers let you pack 4 8-bit characters in an int by including
them all in a character literal:
int creator = 'PROG';
int type = 'myTp';
This was necessary because such multi-character constants were used by the
operating system to as program and file-type identifiers. I don't know if
that's exactly what Arthur is talking about though, because I don't
remember there being an issue with including such character constants in
string literals. I guess it's been too long.
P
Peter Nilsson
Arthur J. O'Dwyer said:
It was avoided by writing '???\?' instead of '????' (a common constant).