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C言語Advent Calendar 2018

Day 21

cで関数ポインタ

Last updated at Posted at 2018-12-21

#概要

cで関数ポインタやってみた。

#サンプルコード

#include <stdio.h>

void number(int i)
{
    printf ("%d\n", i);
}
void fizz(int i)
{
    printf ("fizz\n");
}
void buzz(int i)
{
    printf ("buzz\n");
}
void fizzbuzz(int i)
{
    printf ("fizzbuzz\n");
}
int main()
{
	int i;
	void (* funcp[]) (int) = {
	    number,
	    fizz,
        buzz, 
        fizzbuzz
    };
	for (i = 1; i < 100; i++) 
	{
	    (* funcp[!(i % 3) + !(i % 5) * 2]) (i);
	}
    return 0;
}

#成果物

以上。

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