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  1. #include <stdio.h>
  2.  
  3. void cat_data(int*data1,const int*data2,int len2);
  4. int main(void){
  5. int data1[7]={1,2};
  6. int data2[5]={3,4,5,6,7};
  7. int len2=sizeof(data2)/sizeof(data2[0]);
  8. cat_data(data1+2,data2,len2);
  9. for (int i=0;i<7;i++){
  10. printf("data1[%d] = %d\n",i,*(data1+i));
  11. }
  12. return 0;
  13. }
  14. void cat_data(int*data1,const int*data2,int len2){
  15. int s,count=0;
  16. for(s=0;s<=100;s++){
  17. if(data1[s]==0){
  18. break;
  19. }else{
  20. count++;
  21. }
  22. }for(int i=0;i<len2;i++){
  23. *(data1+(i+count))=*(data2+i);
  24. }
  25.  
  26. }
Success #stdin #stdout 0s 5264KB
stdin
Standard input is empty
stdout
data1[0] = 1
data1[1] = 2
data1[2] = 3
data1[3] = 4
data1[4] = 5
data1[5] = 6
data1[6] = 7