From: Jonathan Nieder <jrnieder@gmail.com>
Date: Mon, 7 Feb 2011 08:17:27 +0000 (-0600)
Subject: correct type of EMPTY_TREE_SHA1_BIN
X-Git-Tag: v1.7.4.2~64
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/dab0d4108d7b45905a12ec6cea2cfc20ea8eabef?ds=inline;hp=dab0d4108d7b45905a12ec6cea2cfc20ea8eabef

correct type of EMPTY_TREE_SHA1_BIN

Functions such as hashcmp that expect a binary SHA-1 value take
parameters of type "unsigned char *" to avoid accepting a textual
SHA-1 passed by mistake.  Unfortunately, this means passing the string
literal EMPTY_TREE_SHA1_BIN requires an ugly cast.  Tweak the
definition of EMPTY_TREE_SHA1_BIN to produce a value of more
convenient type.

In the future the definition might change to

extern const unsigned char empty_tree_sha1_bin[20];
#define EMPTY_TREE_SHA1_BIN empty_tree_sha1_bin

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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