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| author | Mattias Andrée <maandree@kth.se> | 2016-05-11 20:50:06 +0200 |
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| committer | Mattias Andrée <maandree@kth.se> | 2016-05-11 20:50:06 +0200 |
| commit | 626dc2a770207bc1398214e040166f58ec9b8df4 (patch) | |
| tree | 17cf35d329e114741e2788b1d2fe99e09f34401c /doc | |
| parent | Minor edit in Addition (diff) | |
| download | libzahl-626dc2a770207bc1398214e040166f58ec9b8df4.tar.gz libzahl-626dc2a770207bc1398214e040166f58ec9b8df4.tar.bz2 libzahl-626dc2a770207bc1398214e040166f58ec9b8df4.tar.xz | |
Manual: use inplace addition whenever possible
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/arithmetic.tex | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/doc/arithmetic.tex b/doc/arithmetic.tex index 713eedc..f16f04f 100644 --- a/doc/arithmetic.tex +++ b/doc/arithmetic.tex @@ -87,6 +87,23 @@ is however not implemented because it is not deemed important enough and would be detrimental to libzahl's simplicity. +{\tt zadd} and {\tt zadd\_unsigned} support +in-place operation: + +\begin{alltt} + zadd(a, a, b); + zadd(b, a, b); \textcolor{c}{/* \textrm{should be avoided} */} + zadd_unsigned(a, a, b); + zadd_unsigned(b, a, b); \textcolor{c}{/* \textrm{should be avoided} */} +\end{alltt} + +\noindent +Use this whenever possible, it will improve +your performance, as it will involve less +CPU instructions for each character-addition +and it may be possible to elementation some +character-additions. + \newpage \section{Subtraction} |