11210 libm should be cstyle(1ONBLD) clean

*** 16,39 ****
   * fields enclosed by brackets "[]" replaced with your own identifying
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
   * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
   */
  /*
   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #pragma weak __scalbn = scalbn
  
  #include "libm.h"
  
! static const double
!         one     = 1.0,
          huge    = 1.0e300,
          tiny    = 1.0e-300,
          twom54  = 5.5511151231257827021181583404541015625e-17;
  
  #if defined(__x86)
--- 16,40 ----
   * fields enclosed by brackets "[]" replaced with your own identifying
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
+ 
  /*
   * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
   */
+ 
  /*
   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #pragma weak __scalbn = scalbn
  
  #include "libm.h"
  
! static const double one = 1.0,
          huge = 1.0e300,
          tiny = 1.0e-300,
          twom54 = 5.5511151231257827021181583404541015625e-17;
  
  #if defined(__x86)
*** 41,81 ****
  #else
  /*
   * Normalize non-zero subnormal x and return biased exponent of x in [-51,0]
   */
  static int
! ilogb_biased(unsigned *px) {
          int s = 52;
          unsigned v = px[HIWORD] & ~0x80000000, w = px[LOWORD], t = v;
  
          if (t)
                  s -= 32;
          else
                  t = w;
          if (t & 0xffff0000)
                  s -= 16, t >>= 16;
          if (t & 0xff00)
                  s -= 8, t >>= 8;
          if (t & 0xf0)
                  s -= 4, t >>= 4;
          t <<= 1;
          s -= (0xffffaa50 >> t) & 0x3;
          if (s < 32) {
                  v = (v << s) | w >> (32 - s);
                  w <<= s;
          } else {
                  v = w << (s - 32);
                  w = 0;
          }
          px[HIWORD] = (px[HIWORD] & 0x80000000) | v;
          px[LOWORD] = w;
          return (1 - s);
  }
  #endif  /* defined(__x86) */
  
  double
! scalbn(double x, int n) {
          int     *px, ix, hx, k;
  
          px = (int *)&x;
          ix = px[HIWORD];
          hx = ix & ~0x80000000;
--- 42,90 ----
  #else
  /*
   * Normalize non-zero subnormal x and return biased exponent of x in [-51,0]
   */
  static int
! ilogb_biased(unsigned *px)
! {
          int s = 52;
          unsigned v = px[HIWORD] & ~0x80000000, w = px[LOWORD], t = v;
  
          if (t)
                  s -= 32;
          else
                  t = w;
+ 
          if (t & 0xffff0000)
                  s -= 16, t >>= 16;
+ 
          if (t & 0xff00)
                  s -= 8, t >>= 8;
+ 
          if (t & 0xf0)
                  s -= 4, t >>= 4;
+ 
          t <<= 1;
          s -= (0xffffaa50 >> t) & 0x3;
+ 
          if (s < 32) {
                  v = (v << s) | w >> (32 - s);
                  w <<= s;
          } else {
                  v = w << (s - 32);
                  w = 0;
          }
+ 
          px[HIWORD] = (px[HIWORD] & 0x80000000) | v;
          px[LOWORD] = w;
          return (1 - s);
  }
  #endif /* defined(__x86) */
  
  double
! scalbn(double x, int n)
! {
          int *px, ix, hx, k;
  
          px = (int *)&x;
          ix = px[HIWORD];
          hx = ix & ~0x80000000;
*** 85,120 ****
                  return (x * one);
  
          if (k == 0) {
                  if ((hx | px[LOWORD]) == 0 || n == 0)
                          return (x);
  #if defined(__x86)
                  x *= two52;
                  ix = px[HIWORD];
                  k = ((ix & ~0x80000000) >> 20) - 52;
  #else
                  k = ilogb_biased((unsigned *)px);
                  ix = px[HIWORD];
  #endif
                  /* now k is in the range -51..0 */
                  k += n;
                  if (k > n)      /* integer overflow occurred */
                          k = -100;
          } else {
                  /* k is in the range 1..1023 */
                  k += n;
                  if (k < n)      /* integer overflow occurred */
                          k = 0x7ff;
          }
  
          if (k > 0x7fe)
!                 return (huge * ((ix < 0)? -huge : huge));
          if (k < 1) {
                  if (k <= -54)
!                         return (tiny * ((ix < 0)? -tiny : tiny));
                  k += 54;
                  px[HIWORD] = (ix & ~0x7ff00000) | (k << 20);
                  return (x * twom54);
          }
          px[HIWORD] = (ix & ~0x7ff00000) | (k << 20);
          return (x);
  }
--- 94,135 ----
                  return (x * one);
  
          if (k == 0) {
                  if ((hx | px[LOWORD]) == 0 || n == 0)
                          return (x);
+ 
  #if defined(__x86)
                  x *= two52;
                  ix = px[HIWORD];
                  k = ((ix & ~0x80000000) >> 20) - 52;
  #else
                  k = ilogb_biased((unsigned *)px);
                  ix = px[HIWORD];
  #endif
                  /* now k is in the range -51..0 */
                  k += n;
+ 
                  if (k > n)              /* integer overflow occurred */
                          k = -100;
          } else {
                  /* k is in the range 1..1023 */
                  k += n;
+ 
                  if (k < n)              /* integer overflow occurred */
                          k = 0x7ff;
          }
  
          if (k > 0x7fe)
!                 return (huge * ((ix < 0) ? -huge : huge));
! 
          if (k < 1) {
                  if (k <= -54)
!                         return (tiny * ((ix < 0) ? -tiny : tiny));
! 
                  k += 54;
                  px[HIWORD] = (ix & ~0x7ff00000) | (k << 20);
                  return (x * twom54);
          }
+ 
          px[HIWORD] = (ix & ~0x7ff00000) | (k << 20);
          return (x);
  }