Salt_Peter
11/2/2008 7:40:00 AM
On Nov 2, 12:38 am, 741574...@qq.com wrote:
> why the message "num%pow(10,n)"is wrong?
works fine here...
#include <iostream>
int main()
{
std::cout << "num%pow(10,n)" << std::endl;
}
Seriously, in the case you meant to use the above in a statement, you
need a variable to assign the result to and a semicolon is required. i
can tell you right now that operator% won't accept an integer and a
double (which is what pow(...) will return).
What are variables n and num? peanuts? cats? fleas? bolts? keys? hmm?
So here goes a WILD guess.... [rubs crystal ball]
#include <iostream>
#include <cmath>
int main()
{
int num(1);
// int result = num % pow(num, num) // invalid operands - int %
double
int result = num % static_cast< int >( pow(num, num) );
}
If you still don't get it, then please consult the newgroup message
just below this one or the FAQ directly:
<quote>
* Include the smallest, complete and compilable program that exhibits
your
problem. As a rule, posters in comp.lang.c++ will not do homework,
but will
give helpful hints if you have shown some willingness to try a
solution.
</quote>