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  1. #include <stdio.h>
  2.  
  3. void cat_data(int *data1, const int *data2, int len2);
  4.  
  5. int data1[7] = {1, 2};
  6.  
  7. int main() {
  8.     int data2[5] = {3, 4, 5, 6, 7};
  9.  
  10. 	int len2 = sizeof(data2) / sizeof(data2[0]);
  11.  
  12.     cat_data(data1, data2, len2);
  13.  
  14.     printf("連結後のdata1\n");
  15.     for (int i = 0; i < 7; i++) {
  16.         printf("data1[%d] = %d\n", i, data1[i]);
  17.     }
  18.  
  19.     return 0;
  20. }
  21.  
  22. void cat_data(int *data1, const int *data2, int len2) {
  23.     int i;
  24.  
  25.     int len1 = 0;
  26.     for (i = 0; i < 7; i++) {
  27.         if (data1[i] != 0) 
  28.             len1++;
  29.             else break;
  30.     }
  31.  
  32.     int copy_len = 7 - len1;
  33.     if (copy_len > len2) copy_len = len2;
  34.  
  35.     for (i = 0; i < copy_len; i++) {
  36.         data1[len1 + i] = data2[i];
  37.     }
  38. }
Success #stdin #stdout 0.01s 5288KB
comments (?)
stdin 
Standard input is empty
stdout 
連結後のdata1
data1[0] = 1
data1[1] = 2
data1[2] = 3
data1[3] = 4
data1[4] = 5
data1[5] = 6
data1[6] = 7
https://ideone.com/GKjcD1
language:
C (gcc 8.3)
created:
3 days ago
visibility:
public

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