Mercurial > repos > public > sbplib

view default_arg.m @ 929:0344fff87139 feature/timesteppers

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Improve error msg in rk.butcherTableau
author Martin Almquist <malmquist@stanford.edu>
date Mon, 03 Dec 2018 15:40:26 -0800
parents 48b6fb693025
children
line wrap: on
line source

function default_arg(s, val)
    if evalin('caller',sprintf('~exist(''%s'',''var'') || isempty(%s)',s,s))
        assignin('caller',s,val)
    end
end