From: plano9 [mailto:[EMAIL PROTECTED]
>I'm unfamilar with GMP's snytaxes, so I need some help fixing these
>two errors.
>Both errors are "error C2107: illegal index, indirection not allowed"
>on lines 17 and 26
>
>The source code for the program is:
>
>//This program is a primitive implementation of a factoring sieve
Presumably, since you didn't indicate which line was which, this was
line 1
>
>#include <iostream.h>
.h files in C++ are depreciated. Don't use them unless you really must.
>#include "gmp.h"
>
>int main()
>{
> mpz_t n, N, k, var, hold, array;
> short prime=1;
> mpz_set_ui(n, 100);
> mpz_set_ui(k, 2);
> mpz_sqrt(N, n);
> mpz_array_init (array, 10000, 1);
> while (k <= N)
> {
> mpz_cdiv_r(hold, n, k);
> if (array[k] == 0 && hold == 0)
Making this line 17
> {
> mpz_cdiv_q (hold, n, k);
> cout << k << " * " << hold << "; ";
> prime=0;
> mpz_set (var, k);
> while (var < N)
> {
> mpz_add(var, var, k);
> mpz_set_ui(array[var], 1);
And this 27.
You declare on line 8:
mpz_t n, N, k, var, hold, array;
While you may be calling it an array, is it really one?
>From what I can tell from the few pages I googled, mpz_t is a type that
is substitutable for an integer. Making your line similar to :
int n, N, k, var, hold, array;
You cannot use the variable delcared as 'array' here as an actual array.
You need something similar to either:
mpz_t n, N, k, var, hold, array[10];
or
mpz_t n, N, k, var, hold;
mpz_t* array;
array = new mpz_t[10];
--
PJH
"Consistently separating words by spaces became a general custom about
the tenth century A.D., and lasted until about 1957, when FORTRAN
abandoned the practice." -- Sun FORTRAN Reference Manual
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