0x0F. C Function pointers Task 1 - humtej1204/holbertonschool-low_level_programming GitHub Wiki

1. If you spend too much time thinking about a thing, you'll never get it done

Write a function that executes a function given as a parameter on each element of an array.

  • Prototype: void array_iterator(int *array, size_t size, void (*action)(int));
  • where size is the size of the array
  • and action is a pointer to the function you need to use
julien@ubuntu:~/0x0e. Function pointers$ cat 1-main.c
#include <stdio.h>
#include "function_pointers.h"

/**
 * print_elem - prints an integer
 * @elem: the integer to print
 *
 * Return: Nothing.
 */
void print_elem(int elem)
{
    printf("%d\n", elem);
}

/**
 * print_elem_hex - prints an integer, in hexadecimal
 * @elem: the integer to print
 *
 * Return: Nothing.
 */
void print_elem_hex(int elem)
{
    printf("0x%x\n", elem);
}

/**
 * main - check the code
 *
 * Return: Always 0.
 */
int main(void)
{
    int array[5] = {0, 98, 402, 1024, 4096};

    array_iterator(array, 5, &print_elem);
    array_iterator(array, 5, &print_elem_hex);
    return (0);
}
julien@ubuntu:~/0x0e. Function pointers$ gcc -Wall -pedantic -Werror -Wextra -std=gnu89 1-main.c 1-array_iterator.c -o b
julien@ubuntu:~/0x0e. Function pointers$ ./b 
0
98
402
1024
4096
0x0
0x62
0x192
0x400
0x1000
julien@ubuntu:~//0x0e. Function pointers$

Repo:

  • GitHub repository: holbertonschool-low_level_programming
  • Directory: 0x0F-function_pointers
  • File: 1-array_iterator.c
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