throw、try、catch

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#include <stdio.h>

void handler() {
	printf_s("in handler\n");
}

void f1(void) throw(int) {
	printf_s("About to throw 1\n");
	if (1)
		throw 1;
}

void f5(void) throw() {
	try {
		f1();
	}
	catch(...) {
		handler();
	}
}

//invalid, doesn't handle the int exception thrown from f1()
/*void f3(void) throw() {
	f1();
}*/

void __declspec(nothrow) f2(void) {
	try {
		f1();
	}
	catch(int) {
		handler();
	}
}

extern "C" void f4(void);
void f4(void) {
	f1();
}

int main() {
	f2();
	
	try {
		f4();
	}
	catch(...) {
		printf_s("Caught exception from f4\n");
	}
	f5();
}