[코딩] callback example - no typedef

[코딩] callback example - no typedef

앞 글 처럼 typedef 를 쓰면 훨씬 이해가 쉬운 코드가 되겠지만..익숙해 지자 ^^

callback_notypedef.c

	#include<stdio.h>
	// the callback function, which should match the
	// the signature of the callback function, i.e
	// pNotifyChange here
	int onNotify(int nProgress){
	printf("Current progress: %d\n", nProgress);
	return 1;
	}
	// Be careful with the signature of the parameter here
	// which is a function pointer
	int download(int (*notify)(int))
	{
	int i = 0;
	int step = 20;
	for (; i <= 100; i += step){
	notify(i); // callback is called
	}
	}
	int main(){
	int (*notify)(int) = onNotify;
	download(notify);
	return 0;
	}

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