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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4.  
  5. void foo( const char ** const pointer )
  6. {
  7. 	const char *ptr = *pointer;
  8.     while(**pointer)
  9.     {
  10.         printf("%c", **pointer);
  11.         (*pointer)++;
  12.     }
  13.     printf("\n");
  14.     *pointer = ptr;
  15. }
  16.  
  17. void foo1( const char *const * pointer)
  18. {
  19.     while(*pointer)
  20.     {
  21.         printf("%s\n", *pointer++);
  22.     }
  23. }
  24.  
  25.  
  26. int main(void) 
  27. {
  28.     char **pointer = malloc(sizeof(char *));
  29.     char **pointer1 = malloc(sizeof(char *) * 4);
  30.  
  31.     char strings_in_RAM_0[] = "one";
  32.     char strings_in_RAM_1[] = "two";
  33.     char strings_in_RAM_2[] = "three";
  34.  
  35.     pointer1[0] = strings_in_RAM_0;
  36.     pointer1[1] = strings_in_RAM_1;
  37.     pointer1[2] = strings_in_RAM_2;
  38.     pointer1[3] = NULL;
  39.  
  40.     *pointer = malloc(50);
  41.  
  42.     strcpy(*pointer,"Const pointer to pointer");
  43.  
  44.     foo(pointer);
  45.     foo1(pointer1);
  46.  
  47.     free(*pointer);
  48.     free(pointer);
  49.     free(pointer1);
  50.  
  51.     return 0;
  52. }
Success #stdin #stdout 0s 4396KB
comments (?)
stdin 
Standard input is empty
stdout 
Const pointer to pointer
one
two
three
https://ideone.com/JSewN4
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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