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-rw-r--r--security/nss/lib/freebl/mpi/utils/fact.c84
1 files changed, 0 insertions, 84 deletions
diff --git a/security/nss/lib/freebl/mpi/utils/fact.c b/security/nss/lib/freebl/mpi/utils/fact.c
deleted file mode 100644
index da8e61a32..000000000
--- a/security/nss/lib/freebl/mpi/utils/fact.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * fact.c
- *
- * Compute factorial of input integer
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "mpi.h"
-
-mp_err mp_fact(mp_int *a, mp_int *b);
-
-int
-main(int argc, char *argv[])
-{
- mp_int a;
- mp_err res;
-
- if (argc < 2) {
- fprintf(stderr, "Usage: %s <number>\n", argv[0]);
- return 1;
- }
-
- mp_init(&a);
- mp_read_radix(&a, argv[1], 10);
-
- if ((res = mp_fact(&a, &a)) != MP_OKAY) {
- fprintf(stderr, "%s: error: %s\n", argv[0],
- mp_strerror(res));
- mp_clear(&a);
- return 1;
- }
-
- {
- char *buf;
- int len;
-
- len = mp_radix_size(&a, 10);
- buf = malloc(len);
- mp_todecimal(&a, buf);
-
- puts(buf);
-
- free(buf);
- }
-
- mp_clear(&a);
- return 0;
-}
-
-mp_err
-mp_fact(mp_int *a, mp_int *b)
-{
- mp_int ix, s;
- mp_err res = MP_OKAY;
-
- if (mp_cmp_z(a) < 0)
- return MP_UNDEF;
-
- mp_init(&s);
- mp_add_d(&s, 1, &s); /* s = 1 */
- mp_init(&ix);
- mp_add_d(&ix, 1, &ix); /* ix = 1 */
-
- for (/* */; mp_cmp(&ix, a) <= 0; mp_add_d(&ix, 1, &ix)) {
- if ((res = mp_mul(&s, &ix, &s)) != MP_OKAY)
- break;
- }
-
- mp_clear(&ix);
-
- /* Copy out results if we got them */
- if (res == MP_OKAY)
- mp_copy(&s, b);
-
- mp_clear(&s);
-
- return res;
-}