Format mpatan.c

2 files changed, 63 insertions, 46 deletions

diff --git a/ChangeLog b/ChangeLog
index 20ef3fe7eb..06bcafa3d5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2013-02-27  Siddhesh Poyarekar  <siddhesh@redhat.com>
 
+	* sysdeps/ieee754/dbl-64/mpatan.c: Reformat.
+
 	* sysdeps/ieee754/dbl-64/mptan.c: Reformat.
 
 	* sysdeps/ieee754/dbl-64/mplog.c: Reformat.
diff --git a/sysdeps/ieee754/dbl-64/mpatan.c b/sysdeps/ieee754/dbl-64/mpatan.c
index 0f5a24a3c7..cc879d8ec4 100644
--- a/sysdeps/ieee754/dbl-64/mpatan.c
+++ b/sysdeps/ieee754/dbl-64/mpatan.c
@@ -39,63 +39,78 @@
 
 #include "mpatan.h"
 
-void __mpsqrt(mp_no *, mp_no *, int);
-
 void
 SECTION
-__mpatan(mp_no *x, mp_no *y, int p) {
+__mpatan (mp_no *x, mp_no *y, int p)
+{
 
-  int i,m,n;
+  int i, m, n;
   double dx;
-  mp_no
-    mptwoim1 = {0,{0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,
-		0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,
-		0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0}};
+  mp_no mptwoim1 =
+  {
+    0,
+    {
+      0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0,
+      0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0,
+      0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0
+    }
+  };
 
-  mp_no mps,mpsm,mpt,mpt1,mpt2,mpt3;
+  mp_no mps, mpsm, mpt, mpt1, mpt2, mpt3;
 
-		      /* Choose m and initiate mptwoim1 */
-    if      (EX>0) m=7;
-    else if (EX<0) m=0;
-    else {
-      __mp_dbl(x,&dx,p);  dx=ABS(dx);
-      for (m=6; m>0; m--)
-	{if (dx>__atan_xm[m].d) break;}
+  /* Choose m and initiate mptwoim1.  */
+  if (EX > 0)
+    m = 7;
+  else if (EX < 0)
+    m = 0;
+  else
+    {
+      __mp_dbl (x, &dx, p);
+      dx = ABS (dx);
+      for (m = 6; m > 0; m--)
+	{
+	  if (dx > __atan_xm[m].d)
+	    break;
+	}
     }
-    mptwoim1.e = 1;
-    mptwoim1.d[0] = ONE;
+  mptwoim1.e = 1;
+  mptwoim1.d[0] = ONE;
 
-				 /* Reduce x m times */
-    __sqr(x,&mpsm,p);
-    if (m==0) __cpy(x,&mps,p);
-    else {
-      for (i=0; i<m; i++) {
-	__add(&mpone,&mpsm,&mpt1,p);
-	__mpsqrt(&mpt1,&mpt2,p);
-	__add(&mpt2,&mpt2,&mpt1,p);
-	__add(&mptwo,&mpsm,&mpt2,p);
-	__add(&mpt1,&mpt2,&mpt3,p);
-	__dvd(&mpsm,&mpt3,&mpt1,p);
-	__cpy(&mpt1,&mpsm,p);
-      }
-      __mpsqrt(&mpsm,&mps,p);    mps.d[0] = X[0];
+  /* Reduce x m times.  */
+  __sqr (x, &mpsm, p);
+  if (m == 0)
+    __cpy (x, &mps, p);
+  else
+    {
+      for (i = 0; i < m; i++)
+	{
+	  __add (&mpone, &mpsm, &mpt1, p);
+	  __mpsqrt (&mpt1, &mpt2, p);
+	  __add (&mpt2, &mpt2, &mpt1, p);
+	  __add (&mptwo, &mpsm, &mpt2, p);
+	  __add (&mpt1, &mpt2, &mpt3, p);
+	  __dvd (&mpsm, &mpt3, &mpt1, p);
+	  __cpy (&mpt1, &mpsm, p);
+	}
+      __mpsqrt (&mpsm, &mps, p);
+      mps.d[0] = X[0];
     }
 
-		    /* Evaluate a truncated power series for Atan(s) */
-    n=__atan_np[p];    mptwoim1.d[1] = __atan_twonm1[p].d;
-    __dvd(&mpsm,&mptwoim1,&mpt,p);
-    for (i=n-1; i>1; i--) {
+  /* Evaluate a truncated power series for Atan(s).  */
+  n = __atan_np[p];
+  mptwoim1.d[1] = __atan_twonm1[p].d;
+  __dvd (&mpsm, &mptwoim1, &mpt, p);
+  for (i = n - 1; i > 1; i--)
+    {
       mptwoim1.d[1] -= TWO;
-      __dvd(&mpsm,&mptwoim1,&mpt1,p);
-      __mul(&mpsm,&mpt,&mpt2,p);
-      __sub(&mpt1,&mpt2,&mpt,p);
+      __dvd (&mpsm, &mptwoim1, &mpt1, p);
+      __mul (&mpsm, &mpt, &mpt2, p);
+      __sub (&mpt1, &mpt2, &mpt, p);
     }
-    __mul(&mps,&mpt,&mpt1,p);
-    __sub(&mps,&mpt1,&mpt,p);
-
-			  /* Compute Atan(x) */
-    mptwoim1.d[1] = 1 << m;
-    __mul(&mptwoim1,&mpt,y,p);
+  __mul (&mps, &mpt, &mpt1, p);
+  __sub (&mps, &mpt1, &mpt, p);
 
-  return;
+  /* Compute Atan(x).  */
+  mptwoim1.d[1] = 1 << m;
+  __mul (&mptwoim1, &mpt, y, p);
 }