Ralf Wildenhues [EMAIL PROTECTED] writes:
The one that prompted me to make
the macro work with shell variables? Well, it's quite a size reduction,
Yes, that much I understand, but I don't fully understand the
shell-variable part of that patch. I just haven't had enough free
time on one block
Ralf Wildenhues [EMAIL PROTECTED] writes:
What I think you're trying to tell me is this: either the semantics are
wrap-around or some notification (exception or so). But LIA-1 does not
specify bit-shift operations, as far as I can see.
Yes, that's true. I'd forgotten about that. To rely on
Ralf Wildenhues [EMAIL PROTECTED] writes:
The Y-MP from Cray-Cyber has
Wow, good research. And there is still at least one Y-MP running, in
a computer museum. You can log into at at yel.cray-cyber.org, once
you get a guest account. (It's only powered on on Saturdays,
according to the web
Hi Paul,
Paul Eggert writes:
Ralf Wildenhues [EMAIL PROTECTED] writes:
The Y-MP from Cray-Cyber has
Wow, good research. And there is still at least one Y-MP running, in
a computer museum. You can log into at at yel.cray-cyber.org, once
you get a guest account.
Yes, that's the one I
My current version of only the range macros, should have all concerns
addressed. The factoring out for use in a list (or later, factoring
out in a shell function), is not completely done yet.
The macro should be fully functional, though, and the remaining
factorization should not need a change
Ralf Wildenhues [EMAIL PROTECTED] writes:
+AC_COMPILE_IFELSE(
+ [AC_LANG_BOOL_COMPILE_TRY([AC_INCLUDES_DEFAULT([$4])],
+ [$ac_max $ac_max1 ($1) $ac_max1 == $ac_max1])],
Strictly speaking, for signed types this invokes undefined behavior, if
we shifted too far in `$ac_max1',
Ralf Wildenhues [EMAIL PROTECTED] writes:
First, there is still a bug in both your version and mine, AFAICS: if
you pass a MIN-VARIABLE for an unsigned entity, and that variable is not
yet defined, it computes the wrong result.
I assume this can be fixed by replacing:
A case study, FYI.
The Y-MP from Cray-Cyber has
- 31 value-bit shorts
- 63 value-bit ints, but also a mode in which fast arithmetic is done
with only 45 value-bits,
- 63 value-bit longs
All three report a sizeof of 8. CHAR_BIT is 8.
The 46 bit int mode is an optimization mode. The
Hi Paul,
* Paul Eggert wrote on Wed, Apr 05, 2006 at 09:15:58AM CEST:
Ralf Wildenhues [EMAIL PROTECTED] writes:
+AC_COMPILE_IFELSE(
+ [AC_LANG_BOOL_COMPILE_TRY([AC_INCLUDES_DEFAULT([$4])],
+ [$ac_max $ac_max1 ($1) $ac_max1 == $ac_max1])],
Strictly speaking, for signed
Hi Paul,
Here is a preliminary version of the proposed rewrite; I'll try to
finish it tomorrow, unless beaten to.
* Ralf Wildenhues wrote on Fri, Mar 31, 2006 at 09:31:38AM CEST:
* Paul Eggert wrote on Fri, Mar 31, 2006 at 09:10:25AM CEST:
Ralf Wildenhues [EMAIL PROTECTED] writes:
That
Ralf Wildenhues [EMAIL PROTECTED] writes:
If it's not too much work for you, it would be great if you could change
the end of the macro to
)# AC_C_LONG_DOUBLE
and similarly for the other macros, at least the longer ones.
OK, I'll do that.
+m4_define([AC_C_TYPE_RANGE_INTEGER],
This
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According to Paul Eggert on 3/1/2006 11:28 AM:
Gary V. Vaughan [EMAIL PROTECTED] writes:
i) Let's just improve AC_CHECK_HEADERS (et al) to always make configure
smaller and faster by despatching to (undocumented internal)
Hi Paul,
Nice work! Yes, I agree that reparenting these macros into Autoconf
is an excellent idea. As you are soliciting feedback...
Paul Eggert wrote:
+** AC_CHECK_DECLS_ONCE, AC_CHECK_FUNCS_ONCE, AC_CHECK_HEADERS_ONCE
+ New once-only variants of commonly-used macros, to make 'configure'
Hi Paul,
Paul Eggert wrote:
Gary V. Vaughan [EMAIL PROTECTED] writes:
i) Let's just improve AC_CHECK_HEADERS (et al) to always make configure
smaller and faster by despatching to (undocumented internal)
_AC_CHECK_HEADERS_ONCE when it can.
Won't that break old scripts? If
Hi Paul,
* Paul Eggert wrote on Wed, Mar 01, 2006 at 01:48:54AM CET:
Several macros in Gnulib really belong in Autoconf. I took a first
cut at migrating the code, and came up with the following proposed
patch to Autoconf. Not all the gnulib macros made the cut, and some
needed to be renamed
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