From a696a6f41cdd0460d728b4cc3acbf690c2aa93f7 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Fri, 16 Dec 2016 15:46:04 +0100 Subject: add tests, fixes errors, and improve percision MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- doc/info/chap/functions.texinfo | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'doc/info/chap/functions.texinfo') diff --git a/doc/info/chap/functions.texinfo b/doc/info/chap/functions.texinfo index b47a584..9ddefdf 100644 --- a/doc/info/chap/functions.texinfo +++ b/doc/info/chap/functions.texinfo @@ -18,7 +18,11 @@ Described in @ref{sRGB}. @item int libcolour_delta_e(const libcolour_colour_t*, const libcolour_colour_t*, double*) Calculates the @math{\Delta E^*_{ab}} distance -(the distance in CIE L*a*b*) of two colours. +(the distance in CIE L*a*b*) of two colours, +and outputs it to the last parameter. +Returns 0 on success and @math{-1} one error. +This function fails if and only if +@code{libcolour_convert} fails. @item int libcolour_proper(libcolour_colour_t*) Sets any member or submember that may be -- cgit v1.2.3-70-g09d2