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  1. #include <stdio.h>
  2.  
  3. void cat_data(int *data1,const int *data2,int len2);
  4.  
  5. int main(){
  6. int data1[7]={1,2};
  7. int data2[5]={3,4,5,6,7};
  8. int len2=sizeof(data2)/sizeof(data2[0]);
  9.  
  10. cat_data(data1, data2, len2);
  11.  
  12. for(int i=0;i<7;i++){
  13. printf("data1[%d] = %d\n", i, data1[i]);
  14. }
  15. return 0;
  16. }
  17.  
  18. void cat_data(int *data1,const int *data2,int len2){
  19. for(int i=0;i<len2;i++){
  20. data1[i+2]=data2[i];
  21. }
  22. }
Success #stdin #stdout 0.01s 5308KB
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