re-format everything through astyle. Taken from libtom/libtommath (pull request [https://github.com/libtom/libtommath/pull/85|85])

1 files changed, 77 insertions, 75 deletions

diff --git a/libtommath/bn_mp_jacobi.c b/libtommath/bn_mp_jacobi.c
index 5fc8593..8981393 100644
--- a/libtommath/bn_mp_jacobi.c
+++ b/libtommath/bn_mp_jacobi.c
@@ -20,95 +20,97 @@
  * HAC is wrong here, as the special case of (0 | 1) is not
  * handled correctly.
  */
-int mp_jacobi (mp_int * a, mp_int * n, int *c)
+int mp_jacobi(mp_int *a, mp_int *n, int *c)
 {
-  mp_int  a1, p1;
-  int     k, s, r, res;
-  mp_digit residue;
+   mp_int  a1, p1;
+   int     k, s, r, res;
+   mp_digit residue;
 
-  /* if a < 0 return MP_VAL */
-  if (mp_isneg(a) == MP_YES) {
-     return MP_VAL;
-  }
+   /* if a < 0 return MP_VAL */
+   if (mp_isneg(a) == MP_YES) {
+      return MP_VAL;
+   }
 
-  /* if n <= 0 return MP_VAL */
-  if (mp_cmp_d(n, 0) != MP_GT) {
-     return MP_VAL;
-  }
+   /* if n <= 0 return MP_VAL */
+   if (mp_cmp_d(n, 0) != MP_GT) {
+      return MP_VAL;
+   }
 
-  /* step 1. handle case of a == 0 */
-  if (mp_iszero (a) == MP_YES) {
-     /* special case of a == 0 and n == 1 */
-     if (mp_cmp_d (n, 1) == MP_EQ) {
-       *c = 1;
-     } else {
-       *c = 0;
-     }
-     return MP_OKAY;
-  }
+   /* step 1. handle case of a == 0 */
+   if (mp_iszero(a) == MP_YES) {
+      /* special case of a == 0 and n == 1 */
+      if (mp_cmp_d(n, 1) == MP_EQ) {
+         *c = 1;
+      } else {
+         *c = 0;
+      }
+      return MP_OKAY;
+   }
 
-  /* step 2.  if a == 1, return 1 */
-  if (mp_cmp_d (a, 1) == MP_EQ) {
-    *c = 1;
-    return MP_OKAY;
-  }
+   /* step 2.  if a == 1, return 1 */
+   if (mp_cmp_d(a, 1) == MP_EQ) {
+      *c = 1;
+      return MP_OKAY;
+   }
 
-  /* default */
-  s = 0;
+   /* default */
+   s = 0;
 
-  /* step 3.  write a = a1 * 2**k  */
-  if ((res = mp_init_copy (&a1, a)) != MP_OKAY) {
-    return res;
-  }
+   /* step 3.  write a = a1 * 2**k  */
+   if ((res = mp_init_copy(&a1, a)) != MP_OKAY) {
+      return res;
+   }
 
-  if ((res = mp_init (&p1)) != MP_OKAY) {
-    goto LBL_A1;
-  }
+   if ((res = mp_init(&p1)) != MP_OKAY) {
+      goto LBL_A1;
+   }
 
-  /* divide out larger power of two */
-  k = mp_cnt_lsb(&a1);
-  if ((res = mp_div_2d(&a1, k, &a1, NULL)) != MP_OKAY) {
-     goto LBL_P1;
-  }
-
-  /* step 4.  if e is even set s=1 */
-  if ((k & 1) == 0) {
-    s = 1;
-  } else {
-    /* else set s=1 if p = 1/7 (mod 8) or s=-1 if p = 3/5 (mod 8) */
-    residue = n->dp[0] & 7;
+   /* divide out larger power of two */
+   k = mp_cnt_lsb(&a1);
+   if ((res = mp_div_2d(&a1, k, &a1, NULL)) != MP_OKAY) {
+      goto LBL_P1;
+   }
 
-    if ((residue == 1) || (residue == 7)) {
+   /* step 4.  if e is even set s=1 */
+   if ((k & 1) == 0) {
       s = 1;
-    } else if ((residue == 3) || (residue == 5)) {
-      s = -1;
-    }
-  }
+   } else {
+      /* else set s=1 if p = 1/7 (mod 8) or s=-1 if p = 3/5 (mod 8) */
+      residue = n->dp[0] & 7;
 
-  /* step 5.  if p == 3 (mod 4) *and* a1 == 3 (mod 4) then s = -s */
-  if ( ((n->dp[0] & 3) == 3) && ((a1.dp[0] & 3) == 3)) {
-    s = -s;
-  }
+      if ((residue == 1) || (residue == 7)) {
+         s = 1;
+      } else if ((residue == 3) || (residue == 5)) {
+         s = -1;
+      }
+   }
 
-  /* if a1 == 1 we're done */
-  if (mp_cmp_d (&a1, 1) == MP_EQ) {
-    *c = s;
-  } else {
-    /* n1 = n mod a1 */
-    if ((res = mp_mod (n, &a1, &p1)) != MP_OKAY) {
-      goto LBL_P1;
-    }
-    if ((res = mp_jacobi (&p1, &a1, &r)) != MP_OKAY) {
-      goto LBL_P1;
-    }
-    *c = s * r;
-  }
+   /* step 5.  if p == 3 (mod 4) *and* a1 == 3 (mod 4) then s = -s */
+   if (((n->dp[0] & 3) == 3) && ((a1.dp[0] & 3) == 3)) {
+      s = -s;
+   }
+
+   /* if a1 == 1 we're done */
+   if (mp_cmp_d(&a1, 1) == MP_EQ) {
+      *c = s;
+   } else {
+      /* n1 = n mod a1 */
+      if ((res = mp_mod(n, &a1, &p1)) != MP_OKAY) {
+         goto LBL_P1;
+      }
+      if ((res = mp_jacobi(&p1, &a1, &r)) != MP_OKAY) {
+         goto LBL_P1;
+      }
+      *c = s * r;
+   }
 
-  /* done */
-  res = MP_OKAY;
-LBL_P1:mp_clear (&p1);
-LBL_A1:mp_clear (&a1);
-  return res;
+   /* done */
+   res = MP_OKAY;
+LBL_P1:
+   mp_clear(&p1);
+LBL_A1:
+   mp_clear(&a1);
+   return res;
 }
 #endif