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  1. #include <stdio.h>
  2.  
  3. void cat_data(int *datal, const int*data2, int len2);
  4.  
  5. int main(void)
  6. {
  7. int data1[7]={1,2};
  8. int data2[5]={3,4,5,6,7};
  9. int len2=sizeof(data2) / sizeof(data2[0]);
  10.  
  11. cat_data(data1, data2, len2);
  12.  
  13. for(int i=0; i<7; i++){
  14. printf("datal[%d] = %d\n", i, data1[i]);
  15. }
  16. return 0;
  17. }
  18. void cat_data(int *datal, const int*data2, int len2)
  19. {
  20. for(int i=0; i<len2; i++){
  21. datal[i+2] = data2[i];
  22. }
  23. }
Success #stdin #stdout 0s 5308KB
stdin
Standard input is empty
stdout
datal[0] = 1
datal[1] = 2
datal[2] = 3
datal[3] = 4
datal[4] = 5
datal[5] = 6
datal[6] = 7