в 14:21, 25 мая 2010

2010-05-25T14:21:17Z

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2010-05-25T10:30:34Z

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==Rethrowing an exception==

<source lang="cpp">#include <iostream>
using namespace std;

void f()
{
try {
throw "hello"; // throw a char *
}
catch(char *) { // catch a char *
cout << "Caught char * inside f\n";
throw ; // rethrow char * out of function
}
}

int main()
{
cout << "start\n";

try{
f();
}
catch(char *) {
cout << "Caught char * inside main\n";
}

cout << "end";

return 0;
}</source>
<pre class=codeResult>start
This application has requested the Runtime to terminate it in an unusual way.
Please contact the application"s support team for more information.</pre>

==Throw an exception==

<source lang="cpp">#include <iostream>
using namespace std;
int main()
{
int answer, divisor, dividend;
try
{
divisor = 1;
dividend = 0;
if(dividend ==0)
throw 0;
answer = divisor/dividend;
cout << answer;
return 0;
}
catch (int i)
{
cout << "You cannot divide by zero";
}
}</source>
<pre class=codeResult>You cannot divide by zero"</pre>

==Throw an exception from a function and catch it==

<source lang="cpp">#include <iostream>
using namespace std;
// function prototypes.
float divide_number(float , float);
int main()
{
float dividend,divisor,answer;
try
{
dividend = 0;
divisor = 0;
answer = divide_number(dividend,divisor);
}
catch(...)
{
cout << "oops, there is an error!";
}
return 1;
}
float divide_number(float num1, float num2)
{
try
{
float answer;
answer = num1/num2;
return answer;
}
catch(...)
{
throw;
}
}</source>

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