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i was just chekin out some faq stuff and i found a randomizer that could help me but it seams to generate an error even when i run it alone
it says that randomize() is an undeclared identifierCode:#include <stdlib.h>
int rand(void);
#include <stdlib.h> //for rand
#include <stdio.h> //for printf
int main(void)
{
randomize();
printf("A random number from 0 to 99: %d", rand() % 100);
return 0;
}
maby im overlooking somthing small, which could very well be as i am new to c++
thanks
Check this code for randomizing....
Code:
#include <stdlib.h>
#include <stdio.h>
int main(void)
{
int i;
printf("Ten random numbers from 0 to 99\n\n");
for(i=0; i<10; i++)
printf("%d\n", rand() % 100);
return 0;
}
This code will always... give the same result of 10 random numbers...
You can use srand() function with rand() function to get always different random numbers...by putting
srand( time ( NULL ) );
the line before... using rand() function.
Now you will have to include.. time.h for time() function..
Hope it will help...
ok im trying to understand this... so if i wanted a function i maby could do this
hmm i try this but my compiler screams at meCode:#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <iostream.h>
int myrand();
int main(void)
{
cout << endl;
cout << myrand();
return 0;
}
void myrand()
{
srand( time ( NULL ) );
printf("%d\n", rand() % 100););
return 0;
}
im just trying to simplify is so i can just get a random # by calling one function name that i can use throughout my program
Your complier must shout ... because.. you declared a function myrand() with return type int and in the defination header you are using void return type of your function... and you are also returning 0 with statement.. return 0; ...Quote:
Originally posted by jhanoosh
int myrand();
int main(void)
{
cout << endl;
cout << myrand();
return 0;
}
void myrand()
{
srand( time ( NULL ) );
printf("%d\n", rand() % 100););
return 0;
}
I have modified your program.. check out ... the code.
Hope this will solve all your problem....!Code:#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <iostream.h>
int myrand();
int main(void)
{
cout << endl;
cout << myrand();
return 0;
}
int myrand()
{
srand( time ( NULL ) );
return ( rand() % 100 );
}