[PATCH] issue 757, return system metrics num-color-cells for tty
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I'm wondering about the use of log2 in the patch.
1. Is it always available? Configure doesn't check for it.
2. I don't do any casting to int. This works for gcc; is it okay for other
compilers?
--
Jeff Sparkes
jsparkes(a)gmail.com
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- tty.patch (text/x-patch — 2.5 KB)
On Wed, Mar 23, 2011 at 09:17:52AM -0400, Jeff Sparkes wrote:
I'm wondering about the use of log2 in the patch.
1. Is it always available? Configure doesn't check for it.
2. I don't do any casting to int. This works for gcc; is it okay for other
compilers?
log2 manpage says
CONFORMING TO
C99, POSIX.1-2001. The variant returning double also conforms to SVr4,
4.3BSD, C89.
so looks like it has been around for a while. The alternative is using log(x)/log(2)
which is probably what it does internaly anyway on most systems.
Richard
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On Wed, Mar 23, 2011 at 7:17 AM, Jeff Sparkes <jsparkes(a)gmail.com> wrote:
2. I don't do any casting to int. This works for gcc; is it okay
for other
compilers?
Does it work if you compile with g++?
--
Jerry James
http://www.jamezone.org/
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Yes, no warnings. Also clang,
On Sat, Mar 26, 2011 at 9:02 PM, Jerry James <james(a)xemacs.org> wrote:
On Wed, Mar 23, 2011 at 7:17 AM, Jeff Sparkes
<jsparkes(a)gmail.com> wrote:
> 2. I don't do any casting to int. This works for gcc; is it okay for
other
> compilers?
Does it work if you compile with g++?
--
Jerry James
http://www.jamezone.org/
--
Jeff Sparkes
jsparkes(a)gmail.com
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