最近要将matlab程序改写成C.遇到返回值是两个不同数组的问题,不知如何解决.如下是matlab程序:

function [x,q] = bootstrap(actualx,y,R,Q,initVar,numSamples);

[rows,cols] = size(y);      % rows = Max number of time steps.
S = numSamples;             % Number of samples;
Nstd = 2;                   % No of standard deviations for error bars;
x=zeros(S,rows);
xu=zeros(S,rows);
q=zeros(S,rows);

% SAMPLE FROM THE PRIOR:
% =====================
x(:,1) = sqrt(initVar)*randn(S,1);
mean(x(:,1));
cov(x(:,1));

% UPDATE AND PREDICTION STAGES:
% ============================
for t=1:rows-1,
   
   xu(:,t) = predictstates(x(:,t),t,Q);
  q(:,t+1) = importanceweights(xu(:,t),y(t+1,1),R);
  x(:,t+1) = updatestates(xu(:,t),q(:,t+1));
end;

其中:输入变量actualx,y分别是50行1列的矩阵(数组);R,Q,initVar,numSamples是值变量;
     输出变量x,q也是数组

在C中怎样能使返回值是两个不同的数组呢?
精通matlab和C的达人,看看怎样解决?

这只是一个子函数,还要数组x,q应用到主函数中.这样怎么处理呢?