simon-git: pix (master): Simon Tatham

[Commits to Tartarus CVS repository.]

TL;DR:
  38c9e01 Fix a couple of harmless clang warnings.
  c5c91e2 Fix a less harmless clang warning.
  9c9e350 Function to parse an integer, permitting negative values.

Repository:     git://git.tartarus.org/simon/pix.git
On the web:     http://tartarus.org/~simon-git/gitweb/?p=pix.git
Branch updated: master
Committer:      Simon Tatham <anakin at pobox.com>
Date:           2016-09-03 13:25:25

commit 38c9e01d9764eccf6c752a517cc84df06ddcd13b
web diff http://tartarus.org/~simon-git/gitweb/?p=pix.git;a=commitdiff;h=38c9e01d9764eccf6c752a517cc84df06ddcd13b;hp=aed63397b3cb810f2e40e032d67327072aaa26ea
Author: Simon Tatham <anakin at pobox.com>
Date:   Sat Sep 3 11:56:23 2016 +0100

    Fix a couple of harmless clang warnings.
    
    An unused static array definition (we don't currently permit any
    configuration option to output a non-interlaced PNG), and a deliberate
    empty loop body that clang wanted to be reassured _was_ deliberate.

 deflate.c |    3 ++-
 pngout.c  |    2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

commit c5c91e2a8c00d0585824db2eafdcacd57664e26c
web diff http://tartarus.org/~simon-git/gitweb/?p=pix.git;a=commitdiff;h=c5c91e2a8c00d0585824db2eafdcacd57664e26c;hp=38c9e01d9764eccf6c752a517cc84df06ddcd13b
Author: Simon Tatham <anakin at pobox.com>
Date:   Sat Sep 3 11:57:04 2016 +0100

    Fix a less harmless clang warning.
    
    Replaced calls to abs(unsigned) with a subroutine that actually does
    what I meant, which is logically 'convert to signed integer and then
    take the abs of that'.

 pngout.c |   13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

commit 9c9e350758eb870bbb30395c3a3968fe80f0bb75
web diff http://tartarus.org/~simon-git/gitweb/?p=pix.git;a=commitdiff;h=9c9e350758eb870bbb30395c3a3968fe80f0bb75;hp=c5c91e2a8c00d0585824db2eafdcacd57664e26c
Author: Simon Tatham <anakin at pobox.com>
Date:   Sat Sep 3 12:20:02 2016 +0100

    Function to parse an integer, permitting negative values.
    
    parseint() in cmdline.c returns in a signed _type_, but enforces that
    its input string is composed entirely of digits, so it doesn't permit
    negative values. parsesignedint() does.
    
    (I don't currently have a use for that feature in this code base, but
    I'm reusing cmdline.c on an informal basis elsewhere.)

 cmdline.c |   17 +++++++++++++++++
 cmdline.h |    1 +
 2 files changed, 18 insertions(+)