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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4.  
  5. typedef struct news
  6. {
  7.     size_t size;
  8.     char *name;
  9. }
  10. news;
  11.  
  12.  
  13. news* insert(news *note, char *text, int i)
  14. {
  15.     //NB: if note is NULL realloc acts like malloc
  16.     news* new_note=(news*)realloc(note, (i+1)*sizeof(news));
  17.     if (new_note)
  18.     {
  19.         size_t size=strlen(text)*sizeof(char);
  20.         new_note[i].size=size;
  21.         new_note[i].name = malloc(size +1); //make room for /0
  22.         strcpy(new_note[i].name,text); //copies trailing /0 as well
  23.     }
  24.     return (new_note);
  25. }
  26.  
  27. int main()
  28. {
  29.     news *note=NULL;
  30.     int j,k;
  31.  
  32.     for (j=0;j<5;j++)
  33.     {
  34.         news* new_note=insert(note,"hello",j);
  35.         if (new_note)
  36.         {
  37.             note=new_note;
  38.             printf("%s\n",note[j].name);
  39.         }
  40.         else //bork
  41.             break;
  42.    }
  43.  
  44.  
  45.    //don't forget to free your allocations !
  46.     for (k=0;k<j;k++)
  47.         free(note[k].name);
  48.     free(note);
  49.  
  50.    return 0;
  51. }
  52.  
Success #stdin #stdout 0s 2424KB
comments (?)
stdin
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Standard input is empty
stdout
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hello
hello
hello
hello
hello
https://ideone.com/DCmYpU
language:
C (gcc 8.3)
created:
11 years ago
visibility:
public

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