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How to use 'try' and 'catch' keywords for exception handling in c++?
An example will be appreciated.
5 Respostas
+ 5
tnx Oscar
+ 2
What is the idea of saying srand(time(0))
+ 1
#include <iostream>
#include <stdlib.h>
#include <time.h>
using namespace std;
int main() {
srand(time(0));
bool areYouGay = rand()%2;
try{
throw areYouGay;
}
catch(bool yes)
{
if (yes)
cout << "You're gay";
else
cout << "You're not gay";
}
return 0;
}
You can see more here
http://www.cplusplus.com/doc/tutorial/exceptions/
Regards!
+ 1
You're welcome :)
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A random number generator requires a number(it is called seed) to generate random numbers . If the random number generator is given the same seed then every time it will generate the same sequence of random numbers . For example :-
If you run the program and it is generating random sequence 2,78,45,60 . If second time you run the program you will again get the same sequence 2,78,45,60.
srand function is used to change the seed of the random number generator.By setting srand(time(0)) , you are setting the seed of the random number generator to the current time.By doing this every time you run the program you will get different random sequences :-
For example for the first run if you are getting 2,78,45,60 . Next time you might get 5,3,6,80 (depending on the current time,as seed has been changed since the time has changed since the last run)
for more info refer these :-
http://www.cplusplus.com/reference/clibrary/cstdlib/rand/
http://www.cplusplus.com/reference/clibrary/cstdlib/srand/
http://www.cplusplus.com/reference/clibrary/ctime/time/
From Stackoverflow.