C語言 數組拆分

#include <stdio.h><br />#define partN 512<br />#define b(i) (i < partN ? x[i] : y[i-partN])<br />int x[partN],y[partN];<br />int* a(int i)<br />{<br />int temp;<br />temp = i/partN;<br />switch(temp)<br />{<br />case 0: return (x + i);break;<br />case 1: return (y + i - partN);break;<br />}<br />return 0;<br />}<br />int main(int argc, char *argv[])<br />{<br />int k;<br />for(k=0; k<partN; k++)<br />{<br />x[k] = k;<br />}<br />for(k=0; k<partN; k++)<br />{<br />y[k] = k+partN;<br />}<br />//*(a(215)) = 0;<br />for(k=0; k<partN * 2; k++)<br />{<br />printf("%d ",*(a(k)));<br />//printf("%d ",b(k));<br />}<br />return 0;<br />}<br />